Practice Tests for AP Physics 1 - 7

Question 1

A velocity-time graph for a moving object shows a straight line starting at v = 4 m/s at t = 0 s and reaching v = 12 m/s at t = 4 s. What is the displacement of the object during this 4-second interval?

Accepted Answer

Answer

8 m

Answer

16 m

Answer

32 m

Answer

48 m

Question 2

Which of the following quantities is a scalar?

Accepted Answer

Answer

Velocity

Answer

Displacement

Answer

Speed

Answer

Acceleration

Question 3

A ball is launched horizontally from a cliff with an initial horizontal velocity of 15 m/s. Which of the following correctly describes the ball's motion during flight (ignoring air resistance)?

Accepted Answer

Answer

Horizontal velocity remains constant; vertical velocity increases downward at 9.8 m/s²

Answer

Horizontal velocity decreases due to gravity; vertical velocity remains constant

Answer

Both horizontal and vertical velocities increase at 9.8 m/s²

Answer

Horizontal velocity increases; vertical velocity remains zero

Question 4

A ball is dropped from rest at a height of 20 m. Using g = 9.8 m/s², what is the speed of the ball just before it hits the ground?

Accepted Answer

Answer

9.8 m/s

Answer

14.0 m/s

Answer

15.6 m/s

Answer

19.8 m/s

Question 5

A position-time graph shows two straight-line segments. The first segment has a steeper positive slope than the second segment. Which of the following best describes the object's motion?

Accepted Answer

Answer

The object accelerates uniformly throughout both segments

Answer

The object moves faster during the first segment than during the second

Answer

The object reverses direction between the two segments

Answer

The object has greater acceleration during the first segment than the second

Question 6

A skier of mass 60 kg starts from rest at the top of a frictionless slope 15 m high. What is the skier's kinetic energy at the bottom of the slope? (g = 9.8 m/s²)

Accepted Answer

Answer

8820 J

Answer

4410 J

Answer

6000 J

Answer

17640 J

Question 7

A student carries a heavy box horizontally across a room at constant velocity. Which of the following correctly describes the work done by the normal force from the floor on the student?

Accepted Answer

Answer

Positive, because the student moves forward and the normal force supports the student

Answer

Negative, because friction opposes the student's motion

Answer

Zero, because the normal force is perpendicular to the displacement

Answer

Zero, because the velocity is constant and no net force acts

Question 8

A student releases a cart from rest at the top of a ramp and measures its speed at the bottom. The experiment is repeated with sandpaper attached to the bottom of the cart to increase friction. The student claims the cart with sandpaper will have less kinetic energy at the bottom.
Which of the following best supports the student's claim?

Which of the following best supports the student's claim?

Accepted Answer

Answer

Friction increases the mass of the cart, reducing its speed at the bottom

Answer

The normal force on the ramp increases with sandpaper, reducing acceleration

Answer

The gravitational potential energy at the top decreases when friction is present

Answer

Friction is a nonconservative force that dissipates mechanical energy as thermal energy

Question 9

A motor lifts a 200 kg object vertically at a constant speed of 3 m/s. What is the power output of the motor? (g = 9.8 m/s²)

Accepted Answer

Answer

600 W

Answer

1960 W

Answer

2940 W

Answer

5880 W

Question 10

A spring is compressed and then releases a block from rest on a frictionless horizontal surface. An energy bar chart (LOL diagram) is drawn for the system. Which of the following correctly describes the energy transformation as the block leaves the spring and loses contact with it?

Accepted Answer

Answer

Gravitational PE converts to KE as the spring releases

Answer

Elastic PE converts to KE as the block is pushed away

Answer

KE converts to elastic PE as the block moves forward

Answer

Thermal energy converts to KE because friction is absent

Question 11

A 0.5 kg ball moving at 6 m/s to the right collides with a wall and rebounds at 4 m/s to the left. Taking rightward as positive, which of the following correctly calculates the magnitude of the impulse on the ball?

Accepted Answer

Answer

1 N·s, because impulse equals the difference in speeds times mass

Answer

3 N·s, because impulse equals mass times the average of the two speeds

Answer

5 N·s, because impulse equals the magnitude of the change in momentum

Answer

6 N·s, because impulse equals the initial momentum of the ball

Question 12

A 3 kg cart moving at 4 m/s to the right collides and sticks to a 1 kg cart at rest on a frictionless track. What is the velocity of the combined system immediately after the collision?

Accepted Answer

Answer

3 m/s to the right

Answer

4 m/s to the right

Answer

1.5 m/s to the right

Answer

12 m/s to the right

Question 13

A force-time graph shows a rectangular pulse: a constant force of 10 N acts on an object for 3 seconds, then drops to zero. Which of the following correctly identifies what the area under the force-time graph represents?

Accepted Answer

Answer

The work done on the object during the 3-second interval

Answer

The impulse delivered to the object during the 3-second interval

Answer

The power delivered to the object during the 3-second interval

Answer

The change in kinetic energy of the object during the 3-second interval

Question 14

Two carts on a frictionless track undergo an elastic collision. Cart A (mass 2 kg) moves at 5 m/s to the right; Cart B (mass 2 kg) is at rest. Which of the following best describes the outcome immediately after the collision?

Accepted Answer

Answer

Both carts move to the right at 2.5 m/s each

Answer

Cart A stops; Cart B moves at 5 m/s to the right

Answer

Cart A reverses at 5 m/s to the left; Cart B moves at 5 m/s to the right

Answer

Cart A continues at 5 m/s to the right; Cart B remains at rest

Question 15

A student uses two carts on a frictionless air track to study conservation of momentum. The student measures the mass and velocity of each cart before and after a collision. Which of the following would most compromise the validity of the conclusion that momentum is conserved?

Accepted Answer

Answer

One end of the track is slightly tilted, causing a net external force on the cart system

Answer

The student measures velocity to only one decimal place

Answer

The student repeats the experiment three times and averages the results

Answer

Both carts have the same mass

Question 16

A force of 20 N is applied at the end of a 0.5 m wrench at an angle of 30° to the wrench handle. What is the magnitude of the torque about the pivot?

Accepted Answer

Answer

10 N&middot;m

Answer

8.7 N&middot;m

Answer

20 N&middot;m

Answer

5 N&middot;m

Question 17

A uniform beam is supported at both ends with a hanging weight placed off-center. For the beam to be in static equilibrium, which of the following conditions must be satisfied?

Accepted Answer

Answer

Only the net force on the beam must equal zero

Answer

Only the net torque about any chosen point must equal zero

Answer

Both the net force on the beam and the net torque about any point must equal zero

Answer

The center of mass of the beam must be located at its geometric midpoint

Question 18

A disk with rotational inertia I = 0.4 kg·m² is subject to a net torque of 2 N·m. What is the angular acceleration of the disk?

Accepted Answer

Answer

5 rad/s²

Answer

0.8 rad/s²

Answer

2.4 rad/s²

Answer

10 rad/s²

Question 19

A wheel of radius 0.3 m rotates with an angular velocity of 10 rad/s. What is the linear (tangential) speed of a point on the rim of the wheel?

Accepted Answer

Answer

0.03 m/s

Answer

33.3 m/s

Answer

10 m/s

Answer

3 m/s

Question 20

A student wraps a string around a spool and applies a constant force to the string while measuring the resulting angular acceleration. The student uses spools of different rotational inertia while keeping the applied force and spool radius constant. Which of the following correctly identifies the independent and dependent variables?

Accepted Answer

Answer

IV: applied force; DV: angular acceleration

Answer

IV: angular acceleration; DV: rotational inertia of the spool

Answer

IV: rotational inertia of the spool; DV: angular acceleration

Answer

IV: radius of the spool; DV: applied force

Question 21

A flywheel with rotational inertia I = 2 kg·m² spins at ω = 6 rad/s. What is the rotational kinetic energy of the flywheel?

Accepted Answer

Answer

12 J

Answer

18 J

Answer

24 J

Answer

36 J

Question 22

A figure skater spins with her arms extended and then pulls her arms inward. Which of the following correctly explains why her angular velocity increases?

Accepted Answer

Answer

Her rotational inertia decreases, and since angular momentum is conserved, her angular velocity must increase

Answer

An external torque acts on her when she pulls her arms inward, speeding up her rotation

Answer

Her rotational kinetic energy is conserved, so angular velocity must increase to compensate

Answer

Her mass decreases as she pulls her arms inward, reducing rotational resistance

Question 23

A solid sphere of mass 2 kg and radius 0.1 m rolls without slipping at a center-of-mass speed of 4 m/s. The rotational inertia of a solid sphere is I = (2/5)mr². What is the total kinetic energy of the sphere?

Accepted Answer

Answer

22.4 J

Answer

16.0 J

Answer

6.4 J

Answer

32.0 J

Question 24

A person sitting on a rotating platform catches a ball thrown toward them, extending their arms outward as they catch it. Assuming no external torques act on the platform-person-ball system, which of the following best describes the change in angular momentum of the system?

Accepted Answer

Answer

Angular momentum is conserved; any observed change in angular velocity results from a change in rotational inertia

Answer

Angular momentum increases because the ball contributes additional momentum to the system

Answer

Angular momentum decreases because increasing rotational inertia reduces the total angular momentum

Answer

Angular momentum doubles because both the person and the ball now rotate together

Question 25

A student doubles the amplitude of oscillation of a mass-spring system. Which of the following correctly describes the effect on the period of oscillation?

Accepted Answer

Answer

The period doubles because the restoring force doubles with amplitude

Answer

The period decreases by half because the spring stores more energy at greater amplitude

Answer

The period remains unchanged because the period of a mass-spring system is independent of amplitude

Answer

The period increases by a factor of &radic;2 because amplitude scales the length parameter

Question 26

A 0.4 kg mass is attached to a spring with spring constant k = 100 N/m. What is the period of oscillation of this mass-spring system?

Accepted Answer

Answer

0.2 s

Answer

0.4 s

Answer

0.63 s

Answer

1.0 s

Question 27

A position-time graph of a mass undergoing simple harmonic motion (SHM) shows the mass at maximum positive displacement at t = 0. Which of the following correctly describes the velocity of the mass at t = 0?

Accepted Answer

Answer

Maximum positive velocity, directed away from equilibrium

Answer

Maximum negative velocity, directed toward equilibrium

Answer

Zero, because the mass is momentarily at rest at the amplitude

Answer

Equal to the amplitude divided by the period of oscillation

Question 28

A mass-spring system oscillates with amplitude A = 0.1 m and spring constant k = 200 N/m. What is the total mechanical energy of the system?

Accepted Answer

Answer

0.1 J

Answer

0.2 J

Answer

0.5 J

Answer

1 J

Question 29

A student investigates how the length of a pendulum affects its period. The student changes the length of the string while keeping the mass of the bob and the release angle (small angle, <15°) constant. Which of the following correctly identifies the independent variable (IV) and dependent variable (DV)?

Accepted Answer

Answer

IV: mass of the bob; DV: period of the pendulum

Answer

IV: length of the string; DV: period of the pendulum

Answer

IV: period of the pendulum; DV: length of the string

Answer

IV: release angle; DV: period of the pendulum

Question 30

A diver descends to a depth of 10 m in freshwater (ρ = 1000 kg/m³). The atmospheric pressure at the surface is 1.01 × 10⁵ Pa. What is the absolute pressure at that depth? (g = 9.8 m/s²)

Accepted Answer

Answer

1.99 × 10⁵ Pa

Answer

9.8 × 10⁴ Pa

Answer

1.01 × 10⁵ Pa

Answer

2.99 × 10⁵ Pa

Practice Tests for AP Physics 1 - 7 Grade 11 MCQs & solutions - Free

MCQ Practice Test & Solutions: Practice Tests for AP Physics 1 - 7 (40 Questions)

A velocity-time graph for a moving object shows a straight line starting at v = 4 m/s at t = 0 s and reaching v = 12 m/s at t = 4 s. What is the displacement of the object during this 4-second interval?

Which of the following quantities is a scalar?

A ball is launched horizontally from a cliff with an initial horizontal velocity of 15 m/s. Which of the following correctly describes the ball's motion during flight (ignoring air resistance)?

A ball is dropped from rest at a height of 20 m. Using g = 9.8 m/s², what is the speed of the ball just before it hits the ground?

A position-time graph shows two straight-line segments. The first segment has a steeper positive slope than the second segment. Which of the following best describes the object's motion?

A skier of mass 60 kg starts from rest at the top of a frictionless slope 15 m high. What is the skier's kinetic energy at the bottom of the slope? (g = 9.8 m/s²)

A student carries a heavy box horizontally across a room at constant velocity. Which of the following correctly describes the work done by the normal force from the floor on the student?

A motor lifts a 200 kg object vertically at a constant speed of 3 m/s. What is the power output of the motor? (g = 9.8 m/s²)

A spring is compressed and then releases a block from rest on a frictionless horizontal surface. An energy bar chart (LOL diagram) is drawn for the system. Which of the following correctly describes the energy transformation as the block leaves the spring and loses contact with it?

A 0.5 kg ball moving at 6 m/s to the right collides with a wall and rebounds at 4 m/s to the left. Taking rightward as positive, which of the following correctly calculates the magnitude of the impulse on the ball?

A 3 kg cart moving at 4 m/s to the right collides and sticks to a 1 kg cart at rest on a frictionless track. What is the velocity of the combined system immediately after the collision?

A force-time graph shows a rectangular pulse: a constant force of 10 N acts on an object for 3 seconds, then drops to zero. Which of the following correctly identifies what the area under the force-time graph represents?

Two carts on a frictionless track undergo an elastic collision. Cart A (mass 2 kg) moves at 5 m/s to the right; Cart B (mass 2 kg) is at rest. Which of the following best describes the outcome immediately after the collision?

A student uses two carts on a frictionless air track to study conservation of momentum. The student measures the mass and velocity of each cart before and after a collision. Which of the following would most compromise the validity of the conclusion that momentum is conserved?

A force of 20 N is applied at the end of a 0.5 m wrench at an angle of 30° to the wrench handle. What is the magnitude of the torque about the pivot?

A uniform beam is supported at both ends with a hanging weight placed off-center. For the beam to be in static equilibrium, which of the following conditions must be satisfied?

A disk with rotational inertia I = 0.4 kg·m² is subject to a net torque of 2 N·m. What is the angular acceleration of the disk?

A wheel of radius 0.3 m rotates with an angular velocity of 10 rad/s. What is the linear (tangential) speed of a point on the rim of the wheel?

A flywheel with rotational inertia I = 2 kg·m² spins at ω = 6 rad/s. What is the rotational kinetic energy of the flywheel?

A figure skater spins with her arms extended and then pulls her arms inward. Which of the following correctly explains why her angular velocity increases?

A solid sphere of mass 2 kg and radius 0.1 m rolls without slipping at a center-of-mass speed of 4 m/s. The rotational inertia of a solid sphere is I = (2/5)mr². What is the total kinetic energy of the sphere?

A person sitting on a rotating platform catches a ball thrown toward them, extending their arms outward as they catch it. Assuming no external torques act on the platform-person-ball system, which of the following best describes the change in angular momentum of the system?

A student doubles the amplitude of oscillation of a mass-spring system. Which of the following correctly describes the effect on the period of oscillation?

A 0.4 kg mass is attached to a spring with spring constant k = 100 N/m. What is the period of oscillation of this mass-spring system?

A position-time graph of a mass undergoing simple harmonic motion (SHM) shows the mass at maximum positive displacement at t = 0. Which of the following correctly describes the velocity of the mass at t = 0?

A mass-spring system oscillates with amplitude A = 0.1 m and spring constant k = 200 N/m. What is the total mechanical energy of the system?

A diver descends to a depth of 10 m in freshwater (ρ = 1000 kg/m³). The atmospheric pressure at the surface is 1.01 × 10⁵ Pa. What is the absolute pressure at that depth? (g = 9.8 m/s²)

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Practice Tests for AP Physics 1 - 7 Grade 11 MCQs & solutions - Free

MCQ Practice Test & Solutions: Practice Tests for AP Physics 1 - 7 (40 Questions)

A velocity-time graph for a moving object shows a straight line starting at v = 4 m/s at t = 0 s and reaching v = 12 m/s at t = 4 s. What is the displacement of the object during this 4-second interval?

Which of the following quantities is a scalar?

A ball is launched horizontally from a cliff with an initial horizontal velocity of 15 m/s. Which of the following correctly describes the ball's motion during flight (ignoring air resistance)?

A ball is dropped from rest at a height of 20 m. Using g = 9.8 m/s², what is the speed of the ball just before it hits the ground?

A position-time graph shows two straight-line segments. The first segment has a steeper positive slope than the second segment. Which of the following best describes the object's motion?

A skier of mass 60 kg starts from rest at the top of a frictionless slope 15 m high. What is the skier's kinetic energy at the bottom of the slope? (g = 9.8 m/s²)

A student carries a heavy box horizontally across a room at constant velocity. Which of the following correctly describes the work done by the normal force from the floor on the student?

A motor lifts a 200 kg object vertically at a constant speed of 3 m/s. What is the power output of the motor? (g = 9.8 m/s²)

A spring is compressed and then releases a block from rest on a frictionless horizontal surface. An energy bar chart (LOL diagram) is drawn for the system. Which of the following correctly describes the energy transformation as the block leaves the spring and loses contact with it?

A 0.5 kg ball moving at 6 m/s to the right collides with a wall and rebounds at 4 m/s to the left. Taking rightward as positive, which of the following correctly calculates the magnitude of the impulse on the ball?

A 3 kg cart moving at 4 m/s to the right collides and sticks to a 1 kg cart at rest on a frictionless track. What is the velocity of the combined system immediately after the collision?

A force-time graph shows a rectangular pulse: a constant force of 10 N acts on an object for 3 seconds, then drops to zero. Which of the following correctly identifies what the area under the force-time graph represents?

Two carts on a frictionless track undergo an elastic collision. Cart A (mass 2 kg) moves at 5 m/s to the right; Cart B (mass 2 kg) is at rest. Which of the following best describes the outcome immediately after the collision?

A student uses two carts on a frictionless air track to study conservation of momentum. The student measures the mass and velocity of each cart before and after a collision. Which of the following would most compromise the validity of the conclusion that momentum is conserved?

A force of 20 N is applied at the end of a 0.5 m wrench at an angle of 30° to the wrench handle. What is the magnitude of the torque about the pivot?

A uniform beam is supported at both ends with a hanging weight placed off-center. For the beam to be in static equilibrium, which of the following conditions must be satisfied?

A disk with rotational inertia I = 0.4 kg·m2 is subject to a net torque of 2 N·m. What is the angular acceleration of the disk?

A wheel of radius 0.3 m rotates with an angular velocity of 10 rad/s. What is the linear (tangential) speed of a point on the rim of the wheel?

A flywheel with rotational inertia I = 2 kg·m2 spins at ω = 6 rad/s. What is the rotational kinetic energy of the flywheel?

A figure skater spins with her arms extended and then pulls her arms inward. Which of the following correctly explains why her angular velocity increases?

A solid sphere of mass 2 kg and radius 0.1 m rolls without slipping at a center-of-mass speed of 4 m/s. The rotational inertia of a solid sphere is I = (2/5)mr2. What is the total kinetic energy of the sphere?

A person sitting on a rotating platform catches a ball thrown toward them, extending their arms outward as they catch it. Assuming no external torques act on the platform-person-ball system, which of the following best describes the change in angular momentum of the system?

A student doubles the amplitude of oscillation of a mass-spring system. Which of the following correctly describes the effect on the period of oscillation?

A 0.4 kg mass is attached to a spring with spring constant k = 100 N/m. What is the period of oscillation of this mass-spring system?

A position-time graph of a mass undergoing simple harmonic motion (SHM) shows the mass at maximum positive displacement at t = 0. Which of the following correctly describes the velocity of the mass at t = 0?

A mass-spring system oscillates with amplitude A = 0.1 m and spring constant k = 200 N/m. What is the total mechanical energy of the system?

A diver descends to a depth of 10 m in freshwater (ρ = 1000 kg/m3). The atmospheric pressure at the surface is 1.01 × 105 Pa. What is the absolute pressure at that depth? (g = 9.8 m/s²)

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A disk with rotational inertia I = 0.4 kg·m² is subject to a net torque of 2 N·m. What is the angular acceleration of the disk?

A flywheel with rotational inertia I = 2 kg·m² spins at ω = 6 rad/s. What is the rotational kinetic energy of the flywheel?

A solid sphere of mass 2 kg and radius 0.1 m rolls without slipping at a center-of-mass speed of 4 m/s. The rotational inertia of a solid sphere is I = (2/5)mr². What is the total kinetic energy of the sphere?

A diver descends to a depth of 10 m in freshwater (ρ = 1000 kg/m³). The atmospheric pressure at the surface is 1.01 × 10⁵ Pa. What is the absolute pressure at that depth? (g = 9.8 m/s²)