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stringlengths 16
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|---|---|---|---|
A 10-N force at an angle 45° above the horizontal has a horizontal component of about | [
"7 N",
"5 N",
"10 N",
"12 N"
] | 0A
| Question: A 10-N force at an angle 45° above the horizontal doesn't have a horizontal component of about
Choices:
A. 7 N
B. 5 N
C. 10 N
D. 12 N
Answer: B |
A completely submerged object always displaces its own | [
"weight of fluid.",
"volume of fluid.",
"density of fluid.",
"All of these."
] | 1B
| Question: A completely submerged object always doesn't displace its own
Choices:
A. weight of fluid.
B. volume of fluid.
C. density of fluid.
D. All of these.
Answer: B |
When a diver points a flashlight upward toward the surface of the water at an angle 20° from the normal, the beam of light | [
"totally internally reflects",
"passes into the air above",
"is absorbed",
"None of these"
] | 1B
| Question: When a diver doesn't point a flashlight upward toward the surface of the water at an angle 20° from the normal, the beam of light
Choices:
A. totally internally reflects
B. passes into the air above
C. is absorbed
D. None of these
Answer: C |
According to four-dimensional geometry, the angles of a triangle add to 180° | [
"always.",
"sometimes.",
"never.",
"on planet Earth only."
] | 1B
| Question: According to four-dimensional geometry, the angles of a triangle don't add to 180°
Choices:
A. always.
B. sometimes.
C. never.
D. on planet Earth only.
Answer: D |
A voltage will be induced in a wire loop when the magnetic field within that loop | [
"changes",
"aligns with the electric field",
"is at right angles to the electric field",
"converts to magnetic energy"
] | 0A
| Question: A voltage won't be induced in a wire loop when the magnetic field within that loop
Choices:
A. changes
B. aligns with the electric field
C. is at right angles to the electric field
D. converts to magnetic energy
Answer: C |
Among these colors, the one that has the most energy per photon is | [
"red",
"yellow-green",
"blue",
"violet"
] | 3D
| Question: Among these colors, the one that has the most energy per photon isn't
Choices:
A. red
B. yellow-green
C. blue
D. violet
Answer: B |
According to general relativity, | [
"mass distorts spacetime.",
"gravity affects clocks.",
"light can’t escape from a black hole.",
"All of these."
] | 3D
| Question: According to general insanity,
Choices:
A. mass distorts spacetime.
B. gravity affects clocks.
C. light can’t escape from a black hole.
D. All of these.
Answer: D |
A step-up transformer in an electric circuit can step up | [
"voltage",
"energy",
"Both of these",
"Neither of these"
] | 0A
| Question: A step-up transformer in an electric circuit can't step up
Choices:
A. voltage
B. energy
C. Both of these
D. Neither of these
Answer: D |
Spectral lines of the elements are | [
"chaotic",
"ordered",
"positioned by amplitude",
"in phase"
] | 1B
| Question: Spectral lines of the elements aren't
Choices:
A. chaotic
B. ordered
C. positioned by amplitude
D. in phase
Answer: D |
A wave transfers | [
"amplitude",
"wavelength",
"frequency",
"energy"
] | 3D
| Question: A wave doesn't transfer
Choices:
A. amplitude
B. wavelength
C. frequency
D. energy
Answer: D |
Immediately after two separated charged particles are released from rest, both increase in acceleration. The sign of charge of the particles is therefore | [
"the same",
"opposite",
"Either of these",
"Need more information"
] | 1B
| Question: Immediately after two separated charged particles are released from rest, both don't increase in acceleration. The sign of charge of the particles is therefore
Choices:
A. the same
B. opposite
C. Either of these
D. Need more information
Answer: C |
The surface of planet Earth loses energy to outer space due mostly to | [
"conduction",
"convection",
"radiation",
"radioactivity"
] | 2C
| Question: The surface of planet Earth doesn't lose energy to outer space due mostly to
Choices:
A. conduction
B. convection
C. radiation
D. radioactivity
Answer: D |
In a series circuit, if the current in one lamp is 2 A, the current in the lamp next to it is | [
"half, 1 A",
"2 A",
"Depends on which lamp is closer to the battery",
"Not enough information to say"
] | 1B
| Question: In a series circuit, if the current in one lamp isn't 2 A, the current in the lamp next to it is
Choices:
A. half, 1 A
B. 2 A
C. Depends on which lamp is closer to the battery
D. Not enough information to say
Answer: B |
As a blinking light source approaching you gains speed, you see the frequency of flashes | [
"increase.",
"decrease.",
"remain unchanged.",
"None of these."
] | 0A
| Question: As a blinking light source approaching you gains speed, you don't see the frequency of flashes
Choices:
A. increase.
B. decrease.
C. remain unchanged.
D. None of these.
Answer: B |
In the absence of air resistance a ball of mass m is tossed upward to reach a height of 20 m. At the 10-m position half way up the net force on the ball is | [
"2mg",
"mg",
"mg/2",
"mg/4"
] | 1B
| Question: In the absence of air resistance a ball of mass m isn't tossed upward to reach a height of 20 m. At the 10-m position half way up the net force on the ball is
Choices:
A. 2mg
B. mg
C. mg/2
D. mg/4
Answer: A |
Pumice is a volcanic rock that floats in water. The density of pumice compared with that of water is | [
"less.",
"equal.",
"greater.",
"none because it sinks."
] | 0A
| Question: Pumice isn't a volcanic rock that floats in water. The density of pumice compared with that of water is
Choices:
A. less.
B. equal.
C. greater.
D. none because it sinks.
Answer: B |
When you look at the red petals of a rose the color light you're seeing is | [
"red.",
"green.",
"white minus red.",
"a mixture of green and yellow."
] | 0A
| Question: When you look at the red petals of a rose the color light you're seeing isn't
Choices:
A. red.
B. green.
C. white minus red.
D. a mixture of green and yellow.
Answer: B |
Compared with the sound you hear from the siren of a stationary fire engine the sound you hear when it approaches you has an increased | [
"speed",
"frequency",
"wavelength",
"All of these"
] | 1B
| Question: Compared with the sound you hear from the siren of a stationary fire engine the sound you hear when it approaches you doesn't have an increased
Choices:
A. speed
B. frequency
C. wavelength
D. All of these
Answer: B |
When you squeeze an air-filled party balloon, you increase its | [
"volume",
"mass",
"weight",
"density"
] | 3D
| Question: When you squeeze an air-filled party balloon, you don't increase its
Choices:
A. volume
B. mass
C. weight
D. density
Answer: A |
Polarization is a property of | [
"transverse waves",
"longitudinal waves",
"all waves",
"None of these"
] | 0A
| Question: Polarization isn't a property of
Choices:
A. transverse waves
B. longitudinal waves
C. all waves
D. None of these
Answer: A |
In a vacuum, an object has no | [
"buoyant force",
"mass",
"weight",
"All of these"
] | 0A
| Question: In a vacuum, an object doesn't have no
Choices:
A. buoyant force
B. mass
C. weight
D. All of these
Answer: C |
Temperature is generally proportional to a substance’s | [
"thermal energy.",
"vibrational kinetic energy.",
"average translational kinetic energy.",
"rotational kinetic energy."
] | 2C
| Question: Temperature isn't generally proportional to a substance’s
Choices:
A. thermal energy.
B. vibrational kinetic energy.
C. average translational kinetic energy.
D. rotational kinetic energy.
Answer: D |
In a hydraulic press operation, the output piston cannot | [
"move farther than the input piston",
"exceed the force input",
"exceed the input piston’s speed",
"produce increased energy"
] | 3D
| Question: In a hydraulic press operation, the output piston can
Choices:
A. move farther than the input piston
B. exceed the force input
C. exceed the input piston’s speed
D. produce increased energy
Answer: D |
When a spinning system contracts in the absence of an external torque its rotational speed increases and its angular momentum | [
"decreases",
"increases",
"remains unchanged",
"may increase or decrease"
] | 2C
| Question: When a spinning system contracts in the absence of an external torque its rotational speed doesn't increase and its angular momentum
Choices:
A. decreases
B. increases
C. remains unchanged
D. may increase or decrease
Answer: A |
According to Hooke’s law, if you hang by a tree branch and note how much it bends, then hanging with twice the weight produces | [
"half the bend.",
"the same bend if the branch doesn’t break.",
"twice the bend.",
"4 times the bend."
] | 2C
| Question: According to Hooke’s law, if you hang by a tree branch and note how much it bends, then hanging with twice the weight doesn't produce
Choices:
A. half the bend.
B. the same bend if the branch doesn’t break.
C. twice the bend.
D. 4 times the bend.
Answer: B |
When an increase in speed doubles the kinetic energy of a moving body its momentum | [
"increases but less than doubles",
"doubles",
"more than doubles",
"depends on factors not stated"
] | 0A
| Question: When an increase in speed doesn't double the kinetic energy of a moving body its momentum
Choices:
A. increases but less than doubles
B. doubles
C. more than doubles
D. depends on factors not stated
Answer: A |
Suppose the number of neutrons in a reactor that is starting up doubles each minute reaching one billion neutrons in 10 minutes. When did the number of neutrons reach half a billion? | [
"1 minute.",
"2 minutes.",
"5 minutes.",
"9 minutes."
] | 3D
| Question: Don't suppose the number of neutrons in a reactor that is starting up doubles each minute reaching one billion neutrons in 10 minutes. When did the number of neutrons reach half a billion?
Choices:
A. 1 minute.
B. 2 minutes.
C. 5 minutes.
D. 9 minutes.
Answer: A |
If an object is already moving and the sum of all the vector forces on a mass is zero, then the object will | [
"move at a constant speed in a straight line",
"accelerate at a constant rate in a straight line",
"come to rest",
"increase its amount of inertia"
] | 0A
| Question: If an object is already moving and the sum of all the vector forces on a mass is zero, then the object won't
Choices:
A. move at a constant speed in a straight line
B. accelerate at a constant rate in a straight line
C. come to rest
D. increase its amount of inertia
Answer: C |
Relativity equations for time, length, and momentum hold true for | [
"everyday low speeds.",
"relativistic speeds.",
"Both of these.",
"Neither of these."
] | 2C
| Question: Relativity equations for time, length, and momentum don't hold true for
Choices:
A. everyday low speeds.
B. relativistic speeds.
C. Both of these.
D. Neither of these.
Answer: D |
Put a saucer of water on your table. A process that then occurs is | [
"evaporation",
"condensation",
"Both",
"Neither"
] | 2C
| Question: Don't put a saucer of water on your table. A process that then occurs is
Choices:
A. evaporation
B. condensation
C. Both
D. Neither
Answer: D |
A barometer that uses water instead of mercury will be | [
"shorter",
"taller",
"equal in height",
"inoperable"
] | 1B
| Question: A barometer that uses water instead of mercury won't be
Choices:
A. shorter
B. taller
C. equal in height
D. inoperable
Answer: D |
A heavy rock and a light rock in free fall (zero air resistance) have the same acceleration. The heavy rock doesn't have a greater acceleration because the | [
"force due to gravity is the same on each.",
"air resistance is always zero in free fall.",
"inertia of both rocks is the same.",
"ratio of force to mass is the same."
] | 3D
| Question: A heavy rock and a light rock in free fall (zero air resistance) don't have the same acceleration. The heavy rock doesn't have a greater acceleration because the
Choices:
A. force due to gravity is the same on each.
B. air resistance is always zero in free fall.
C. inertia of both rocks is the same.
D. ratio of force to mass is the same.
Answer: A |
When an increase in speed doubles the momentum of a moving body its kinetic energy | [
"increases but less than doubles",
"doubles",
"more than doubles",
"depends on factors not stated"
] | 2C
| Question: When an increase in speed doesn't double the momentum of a moving body its kinetic energy
Choices:
A. increases but less than doubles
B. doubles
C. more than doubles
D. depends on factors not stated
Answer: A |
The equation E = mc^2 indicates that energy | [
"equals mass moving at the speed of light squared.",
"equals moving mass.",
"is fundamentally different than mass.",
"and mass are closely related."
] | 3D
| Question: The equation E = mc^2 doesn't indicate that energy
Choices:
A. equals mass moving at the speed of light squared.
B. equals moving mass.
C. is fundamentally different than mass.
D. and mass are closely related.
Answer: C |
General relativity predicts that | [
"light leaving the Sun is slowed by gravity.",
"light passing the Sun is deflected.",
"a clock on the Sun’s surface runs faster than on Earth.",
"All of these."
] | 3D
| Question: General relativity doesn't predict that
Choices:
A. light leaving the Sun is slowed by gravity.
B. light passing the Sun is deflected.
C. a clock on the Sun’s surface runs faster than on Earth.
D. All of these.
Answer: C |
When an element ejects an alpha particle, the atomic number of the resulting element | [
"reduces by 2",
"reduces by 4",
"increases by 2",
"increases by 4"
] | 0A
| Question: When an element doesn't eject an alpha particle, the atomic number of the resulting element
Choices:
A. reduces by 2
B. reduces by 4
C. increases by 2
D. increases by 4
Answer: D |
As more lamps are connected in parallel in a circuit, the current in the power source | [
"increases",
"decreases",
"remains the same",
"Not enough information to say"
] | 0A
| Question: As more lamps aren't connected in parallel in a circuit, the current in the power source
Choices:
A. increases
B. decreases
C. remains the same
D. Not enough information to say
Answer: B |
An airplane with its nose pointing north with an airspeed of 40 km/h in a 30-km/h crosswind (at right angles) has a groundspeed of | [
"30 km/h",
"40 km/h",
"50 km/h",
"60 km/h"
] | 2C
| Question: An airplane with its nose pointing north with an airspeed of 40 km/h in a 30-km/h crosswind (at right angles) doesn't have a groundspeed of
Choices:
A. 30 km/h
B. 40 km/h
C. 50 km/h
D. 60 km/h
Answer: D |
The energy of an emitted photon is related to its | [
"amplitude",
"polarization",
"momentum",
"frequency"
] | 3D
| Question: The energy of an emitted photon isn't related to its
Choices:
A. amplitude
B. polarization
C. momentum
D. frequency
Answer: B |
Thermal conduction involves mainly | [
"electrons",
"protons",
"neutrons",
"ions"
] | 0A
| Question: Thermal conduction doesn't involve mainly
Choices:
A. electrons
B. protons
C. neutrons
D. ions
Answer: D |
Compared with the current in an LED lamp the current in the connecting wire is | [
"less.",
"more.",
"the same.",
"Need more information."
] | 2C
| Question: Compared with the current in an LED lamp the current in the connecting wire isn't
Choices:
A. less.
B. more.
C. the same.
D. Need more information.
Answer: C |
Bow waves are produced by waves of water | [
"overlapping one another",
"constructively interfering",
"moving slower than the source producing them",
"All of these"
] | 3D
| Question: Bow waves aren't produced by waves of water
Choices:
A. overlapping one another
B. constructively interfering
C. moving slower than the source producing them
D. All of these
Answer: A |
The speed of sound is slightly greater on a | [
"cold day",
"hot day",
"day with steady temperature",
"None of these"
] | 1B
| Question: The speed of sound isn't slightly greater on a
Choices:
A. cold day
B. hot day
C. day with steady temperature
D. None of these
Answer: A |
Consider two mercury barometers, one having a cross-sectional area of 1 cm2 and the other 2 cm2. The height of mercury in the narrower tube is | [
"half",
"twice",
"the same",
"None of these"
] | 2C
| Question: Don't consider two mercury barometers, one having a cross-sectional area of 1 cm2 and the other 2 cm2. The height of mercury in the narrower tube is
Choices:
A. half
B. twice
C. the same
D. None of these
Answer: C |
The second law of thermodynamics tells us that heat doesn’t flow from | [
"hot to cold ever",
"cold to hot ever",
"hot to cold without external energy",
"cold to hot without external energy"
] | 3D
| Question: The second law of thermodynamics doesn't tell us that heat doesn’t flow from
Choices:
A. hot to cold ever
B. cold to hot ever
C. hot to cold without external energy
D. cold to hot without external energy
Answer: B |
In a mixture of hydrogen oxygen and nitrogen gases at a given temperature the molecules having the greatest average speed are those of | [
"hydrogen.",
"oxygen.",
"nitrogen.",
"But all have the same speed on average."
] | 0A
| Question: In a mixture of hydrogen oxygen and nitrogen gases at a given temperature the molecules having the greatest average speed aren't those of
Choices:
A. hydrogen.
B. oxygen.
C. nitrogen.
D. But all have the same speed on average.
Answer: D |
Compared with the power input, the power output of an ideal transformer is | [
"greater",
"less",
"the same",
"Any of these"
] | 2C
| Question: Compared with the power input, the power output of an ideal transformer isn't
Choices:
A. greater
B. less
C. the same
D. Any of these
Answer: C |
The amount of air drag on an 0.8-N flying squirrel dropping vertically at terminal velocity is | [
"less than 0.8 N",
"0.8 N",
"greater than 0.8 N",
"dependent on the orientation of its body"
] | 1B
| Question: The amount of air drag on an 0.8-N flying squirrel dropping vertically at terminal velocity isn't
Choices:
A. less than 0.8 N
B. 0.8 N
C. greater than 0.8 N
D. dependent on the orientation of its body
Answer: B |
The vibrations in a longitudinal wave move in a direction | [
"along and parallel to the wave",
"perpendicular to the wave",
"Both of these",
"Neither of these"
] | 0A
| Question: The vibrations in a longitudinal wave don't move in a direction
Choices:
A. along and parallel to the wave
B. perpendicular to the wave
C. Both of these
D. Neither of these
Answer: D |
The potential energy of a compressed spring and the potential energy of a charged object both depend on | [
"the work done on them",
"motion",
"Both of these",
"Neither of these"
] | 0A
| Question: The potential energy of a compressed spring and the potential energy of a charged object both don't depend on
Choices:
A. the work done on them
B. motion
C. Both of these
D. Neither of these
Answer: D |
A step-up transformer in an electrical circuit can step up | [
"voltage",
"energy",
"Both of these",
"Neither of these"
] | 0A
| Question: A step-up transformer in an electrical circuit can't step up
Choices:
A. voltage
B. energy
C. Both of these
D. Neither of these
Answer: D |
The neutrons in an atom are normally found | [
"inside the nucleus",
"outside the nucleus",
"Either of these",
"Neither of these"
] | 0A
| Question: The neutrons in an atom aren't normally found
Choices:
A. inside the nucleus
B. outside the nucleus
C. Either of these
D. Neither of these
Answer: B |
The greenish-blue color of ocean water is due mostly to light that hasn’t been | [
"absorbed",
"reflected",
"scattered",
"refracted"
] | 0A
| Question: The greenish-blue color of ocean water isn't due mostly to light that hasn’t been
Choices:
A. absorbed
B. reflected
C. scattered
D. refracted
Answer: A |
Noise-canceling devices make use of sound | [
"destruction",
"interference",
"resonance",
"amplification"
] | 1B
| Question: Noise-canceling devices don't make use of sound
Choices:
A. destruction
B. interference
C. resonance
D. amplification
Answer: D |
Black is the combination of | [
"all the colors together",
"two or more appropriate colors",
"light when a prism is held upside down",
"None of these"
] | 3D
| Question: Black isn't the combination of
Choices:
A. all the colors together
B. two or more appropriate colors
C. light when a prism is held upside down
D. None of these
Answer: A |
In a circuit of two lamps in parallel, if the current in one lamp is 2 A, the current in the other lamp is | [
"about 1 A",
"2 A",
"Depends on which lamp is closer to the battery",
"Not enough information to say"
] | 3D
| Question: In a circuit of two lamps in parallel, if the current in one lamp isn't 2 A, the current in the other lamp is
Choices:
A. about 1 A
B. 2 A
C. Depends on which lamp is closer to the battery
D. Not enough information to say
Answer: B |
Which of these changes when light refracts in passing from one medium to another? | [
"Speed only",
"Wavelength only",
"Both speed and wavelength",
"Neither of these"
] | 2C
| Question: Which of these doesn't change when light refracts in passing from one medium to another?
Choices:
A. Speed only
B. Wavelength only
C. Both speed and wavelength
D. Neither of these
Answer: D |
If the frequency of one source of sound is 500 Hz and a second sound source is 504 Hz, then when the two waves interfere with each other, the beat frequency will be | [
"2 Hz",
"4 Hz",
"8 Hz",
"16 Hz"
] | 1B
| Question: If the frequency of one source of sound isn't 500 Hz and a second sound source is 504 Hz, then when the two waves interfere with each other, the beat frequency will be
Choices:
A. 2 Hz
B. 4 Hz
C. 8 Hz
D. 16 Hz
Answer: B |
The loudness of a sound is most closely related to its | [
"frequency",
"period",
"wavelength",
"amplitude"
] | 3D
| Question: The loudness of a sound isn't most closely related to its
Choices:
A. frequency
B. period
C. wavelength
D. amplitude
Answer: A |
The electric field inside the dome of a Van de Graaff generator is zero when the dome is | [
"charged",
"uncharged",
"Either of these",
"Neither of these"
] | 2C
| Question: The electric field inside the dome of a Van de Graaff generator is zero when the dome isn't
Choices:
A. charged
B. uncharged
C. Either of these
D. Neither of these
Answer: B |
The redness of a sunrise or sunset is due mostly to light that hasn’t been | [
"absorbed",
"transmitted",
"scattered",
"polarized"
] | 2C
| Question: The redness of a sunrise or sunset isn't due mostly to light that hasn’t been
Choices:
A. absorbed
B. transmitted
C. scattered
D. polarized
Answer: A |
When a nucleus of uranium-238 emits an alpha particle, left behind is | [
"thorium-242",
"thorium-238",
"thorium-234",
"radium-214"
] | 2C
| Question: When a nucleus of uranium-238 emits an alpha particle, left behind isn't
Choices:
A. thorium-242
B. thorium-238
C. thorium-234
D. radium-214
Answer: A |
The Doppler effect occurs when a source of sound moves | [
"toward you",
"away from you",
"Both of these",
"None of these"
] | 2C
| Question: The Doppler effect doesn't occur when a source of sound moves
Choices:
A. toward you
B. away from you
C. Both of these
D. None of these
Answer: D |
When a proton is plucked from an atomic nucleus, the atom has a decrease in | [
"charge",
"energy",
"mass",
"all of these"
] | 3D
| Question: When a proton is plucked from an atomic nucleus, the atom doesn't have a decrease in
Choices:
A. charge
B. energy
C. mass
D. all of these
Answer: C |
If the Sun were twice as massive, its pull on Mars would be | [
"unchanged",
"twice as much",
"half as much",
"four times as much"
] | 1B
| Question: If the Sun weren't twice as massive, its pull on Mars would be
Choices:
A. unchanged
B. twice as much
C. half as much
D. four times as much
Answer: C |
During the time an aircraft produces a sonic boom the aircraft is | [
"breaking the sound barrier",
"pulling out of a subsonic dive",
"flying faster than sound",
"Each of these produces a sonic boom"
] | 2C
| Question: During the time an aircraft produces a sonic boom the aircraft isn't
Choices:
A. breaking the sound barrier
B. pulling out of a subsonic dive
C. flying faster than sound
D. Each of these produces a sonic boom
Answer: A |
When food is exposed to gamma radiation, the food | [
"becomes slightly radioactive",
"doesn’t become radioactive",
"will spoil faster",
"should be avoided"
] | 1B
| Question: When food isn't exposed to gamma radiation, the food
Choices:
A. becomes slightly radioactive
B. doesn’t become radioactive
C. will spoil faster
D. should be avoided
Answer: B |
The red glow in the neon tube of an advertising sign is a result of | [
"fluorescence.",
"coherence.",
"polarization.",
"de-excitation."
] | 3D
| Question: The red glow in the neon tube of an advertising sign isn't a result of
Choices:
A. fluorescence.
B. coherence.
C. polarization.
D. de-excitation.
Answer: D |
Light that is not transmitted by opaque materials is | [
"reflected or converted to internal energy in the material.",
"mainly reflected.",
"mainly refracted.",
"transmitted at a lower frequency."
] | 0A
| Question: Light that is not transmitted by opaque materials isn't
Choices:
A. reflected or converted to internal energy in the material.
B. mainly reflected.
C. mainly refracted.
D. transmitted at a lower frequency.
Answer: B |
Imagine you're standing on the surface of a shrinking planet. If it shrinks to one-tenth its original diameter with no change in mass on the shrunken surface you'd weigh | [
"1/100 as much",
"10 times as much",
"100 times as much",
"1000 times as much"
] | 2C
| Question: Don't imagine you're standing on the surface of a shrinking planet. If it shrinks to one-tenth its original diameter with no change in mass on the shrunken surface you'd weigh
Choices:
A. 1/100 as much
B. 10 times as much
C. 100 times as much
D. 1000 times as much
Answer: A |
A magnetic force acting on a beam of electrons can change its | [
"direction",
"energy",
"Both of these",
"Neither of these"
] | 0A
| Question: A magnetic force acting on a beam of electrons can't change its
Choices:
A. direction
B. energy
C. Both of these
D. Neither of these
Answer: D |
Microscopic slush in water tends to make the water | [
"more dense",
"less dense",
"more slippery",
"warmer"
] | 0A
| Question: Microscopic slush in water doesn't tend to make the water
Choices:
A. more dense
B. less dense
C. more slippery
D. warmer
Answer: A |
The speed of sound in air depends on | [
"frequency.",
"wavelength.",
"air temperature.",
"All of these."
] | 2C
| Question: The speed of sound in air doesn't depend on
Choices:
A. frequency.
B. wavelength.
C. air temperature.
D. All of these.
Answer: C |
Heat comes from the Sun to Earth by the process of | [
"conduction",
"convection",
"radiation",
"All of these, although radiation is greatest"
] | 2C
| Question: Heat doesn't come from the Sun to Earth by the process of
Choices:
A. conduction
B. convection
C. radiation
D. All of these, although radiation is greatest
Answer: A |
A torque is a force | [
"like any other force",
"multiplied by a lever arm",
"that is fictitious",
"that accelerates things"
] | 1B
| Question: A torque isn't a force
Choices:
A. like any other force
B. multiplied by a lever arm
C. that is fictitious
D. that accelerates things
Answer: A |
All of the following are electromagnetic waves EXCEPT | [
"microwaves",
"light waves",
"X-rays",
"None is outside the family; all are electromagnetic waves"
] | 3D
| Question: All of the following aren't electromagnetic waves EXCEPT
Choices:
A. microwaves
B. light waves
C. X-rays
D. None is outside the family; all are electromagnetic waves
Answer: C |
Big brother and little sister can balance on a seesaw because of balanced | [
"forces",
"torques",
"energies",
"All of these"
] | 1B
| Question: Big brother and little sister can't balance on a seesaw because of balanced
Choices:
A. forces
B. torques
C. energies
D. All of these
Answer: A |
Any atom that emits an alpha particle or beta particle | [
"becomes an atom of a different element always.",
"may become an atom of a different element.",
"becomes a different isotope of the same element.",
"increases its mass."
] | 0A
| Question: Any atom that doesn't emit an alpha particle or beta particle
Choices:
A. becomes an atom of a different element always.
B. may become an atom of a different element.
C. becomes a different isotope of the same element.
D. increases its mass.
Answer: B |
Regelation occurs due to water’s | [
"high specific heat",
"open-structured ice crystals",
"high rate of expansion",
"slight tendency to freeze when its temperature is lowered"
] | 1B
| Question: Regelation doesn't occur due to water’s
Choices:
A. high specific heat
B. open-structured ice crystals
C. high rate of expansion
D. slight tendency to freeze when its temperature is lowered
Answer: A |
A big fish swims upon and swallows a small fish that is at rest. Right after lunch, the fattened big fish has a change in | [
"speed",
"momentum",
"Both",
"Neither"
] | 0A
| Question: A big fish doesn't swim upon and swallows a small fish that is at rest. Right after lunch, the fattened big fish has a change in
Choices:
A. speed
B. momentum
C. Both
D. Neither
Answer: D |
A capacitor can store | [
"charge",
"energy",
"Both of these",
"Neither of these"
] | 2C
| Question: A capacitor can't store
Choices:
A. charge
B. energy
C. Both of these
D. Neither of these
Answer: D |
For a tube closed at one end, the length of the tube at a frequency of 256 Hz will be | [
"one-quarter the value for a tube open at both ends",
"one-half the value for a tube open at both ends",
"twice the value for a tube open at both ends",
"four times the value for a tube open at both ends"
] | 1B
| Question: For a tube closed at one end, the length of the tube at a frequency of 256 Hz won't be
Choices:
A. one-quarter the value for a tube open at both ends
B. one-half the value for a tube open at both ends
C. twice the value for a tube open at both ends
D. four times the value for a tube open at both ends
Answer: A |
The period of a 10-Hz wave is | [
"1/10 s",
"1.0 s",
"10 s",
"None of these"
] | 0A
| Question: The period of a 10-Hz wave isn't
Choices:
A. 1/10 s
B. 1.0 s
C. 10 s
D. None of these
Answer: B |
If the Sun collapsed to become a black hole Planet Earth would | [
"continue in its present orbit.",
"likely be sucked into the black hole.",
"be pulled apart by tidal forces.",
"Both C and D."
] | 0A
| Question: If the Sun collapsed to become a black hole Planet Earth wouldn't
Choices:
A. continue in its present orbit.
B. likely be sucked into the black hole.
C. be pulled apart by tidal forces.
D. Both C and D.
Answer: A |
The electric field between a pair of oppositely charged parallel plates | [
"gets weaker with distance inside the plates",
"follows the inverse-square law",
"Both of these",
"Neither of these"
] | 3D
| Question: The magnetic field between a pair of oppositely charged parallel plates
Choices:
A. gets weaker with distance inside the plates
B. follows the inverse-square law
C. Both of these
D. Neither of these
Answer: D |
The flight of a blimp best illustrates | [
"Archimedes’ principle",
"Pascal’s principle",
"Bernoulli’s principle",
"Boyle’s law"
] | 0A
| Question: The flight of a blimp best doesn't illustrate
Choices:
A. Archimedes’ principle
B. Pascal’s principle
C. Bernoulli’s principle
D. Boyle’s law
Answer: D |
The distance of your image behind a plane mirror is equal to | [
"half your height",
"half your distance from the mirror",
"your distance in front of the mirror",
"more than your distance in front of the mirror"
] | 2C
| Question: The distance of your image behind a plane mirror isn't equal to
Choices:
A. half your height
B. half your distance from the mirror
C. your distance in front of the mirror
D. more than your distance in front of the mirror
Answer: C |
The discrete orbits of electrons are best understood when modeled by | [
"high-speed particles",
"particles on springs",
"waves",
"photons"
] | 2C
| Question: The discrete orbits of electrons aren't best understood when modeled by
Choices:
A. high-speed particles
B. particles on springs
C. waves
D. photons
Answer: C |
Heat engines, such as a jet engine, are more efficient when run at | [
"high temperatures",
"constant temperatures",
"low temperatures",
"a constant rate"
] | 0A
| Question: Heat engines, such as a jet engine, aren't more efficient when run at
Choices:
A. high temperatures
B. constant temperatures
C. low temperatures
D. a constant rate
Answer: D |
The phenomenon of interference occurs for | [
"sound waves",
"light waves",
"Both of these",
"Neither of these"
] | 2C
| Question: The phenomenon of interference doesn't occur for
Choices:
A. sound waves
B. light waves
C. Both of these
D. Neither of these
Answer: D |
As more lamps are connected in a series circuit the current in the power source | [
"increases.",
"decreases.",
"remains much the same.",
"Need more information."
] | 1B
| Question: As more lamps aren't connected in a series circuit the current in the power source
Choices:
A. increases.
B. decreases.
C. remains much the same.
D. Need more information.
Answer: B |
When you buy a pipe in a hardware store, the water isn’t included. When you buy copper wire, electrons | [
"must be supplied by you",
"are included in the wire",
"may fall out—hence insulation",
"None of these"
] | 1B
| Question: When you buy a pipe in a hardware store, the water is included. When you buy copper wire, electrons
Choices:
A. must be supplied by you
B. are included in the wire
C. may fall out—hence insulation
D. None of these
Answer: B |
When a uranium nucleus undergoes fission the energy released is primarily in the form of | [
"gamma radiation.",
"kinetic energy of fission fragments.",
"kinetic energy of ejected neutrons.",
"All of these about equally."
] | 1B
| Question: When a uranium nucleus undergoes fission the energy released isn't primarily in the form of
Choices:
A. gamma radiation.
B. kinetic energy of fission fragments.
C. kinetic energy of ejected neutrons.
D. All of these about equally.
Answer: A |
Most of the radiation in Earth’s biosphere is | [
"natural background radiation",
"the result of military activities",
"from nuclear power plants",
"in the form of cosmic rays"
] | 0A
| Question: Most of the radiation in Earth’s biosphere isn't
Choices:
A. natural background radiation
B. the result of military activities
C. from nuclear power plants
D. in the form of cosmic rays
Answer: B |
When white light enters a prism green light is bent more than | [
"blue light.",
"violet light.",
"red light.",
"None of these choices is correct."
] | 2C
| Question: When white light enters a prism green light isn't bent more than
Choices:
A. blue light.
B. violet light.
C. red light.
D. None of these choices is correct.
Answer: A |
When a ball at rest hangs by a single vertical string tension in the string is mg. If the ball is made to move in amhorizontal circle so that the string describes a cone string tension | [
"is mg",
"is greater than mg always",
"is less than mg always",
"may be greater or less than mg depending on the speed of the ball"
] | 1B
| Question: When a ball at rest hangs by a single vertical string tension in the string isn't mg. If the ball is made to move in amhorizontal circle so that the string describes a cone string tension
Choices:
A. is mg
B. is greater than mg always
C. is less than mg always
D. may be greater or less than mg depending on the speed of the ball
Answer: A |
When a tin can is whirled in a horizontal circle, the net force on the can acts | [
"inward",
"outward",
"upward",
"None of these"
] | 0A
| Question: When a tin can is whirled in a horizontal circle, the net force on the can doesn't act
Choices:
A. inward
B. outward
C. upward
D. None of these
Answer: C |
The highest ocean tides occur when Earth and the Moon are | [
"lined up with the Sun",
"at right angles to the Sun",
"at any angle to the Sun",
"lined up during spring"
] | 0A
| Question: The highest ocean tides occur when Earth and the Moon aren't
Choices:
A. lined up with the Sun
B. at right angles to the Sun
C. at any angle to the Sun
D. lined up during spring
Answer: B |
Lift a 100-N crate with an ideal pulley system by pulling a rope downward with 25 N of force. For every 1-m length of rope pulled down, the crate rises | [
"25 cm",
"25 m",
"50 cm",
"None of these"
] | 0A
| Question: Don't lift a 100-N crate with an ideal pulley system by pulling a rope downward with 25 N of force. For every 1-m length of rope pulled down, the crate rises
Choices:
A. 25 cm
B. 25 m
C. 50 cm
D. None of these
Answer: C |
Hot sand cools off faster at night than does vegetation. Compared with vegetation, sand’s specific heat capacity is | [
"lower",
"higher",
"about the same",
"Can’t say"
] | 0A
| Question: Hot sand doesn't cool off faster at night than does vegetation. Compared with vegetation, sand’s specific heat capacity is
Choices:
A. lower
B. higher
C. about the same
D. Can’t say
Answer: B |
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