Topic-specific practice · 42 questions for every official topic

AP Physics 1 MCQ Practice by Topic 2027

Choose a topic to open its full 42-question bank. The topic links from lesson pages land directly on the matching bank, so a student reviewing Topic 1.3 is not sent to a short generic diagnostic.

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How much AP Physics 1 MCQ practice is available?

There are 42 original multiple-choice questions for each of the 43 official AP Physics 1 topics, giving 1,806 topic MCQs with answers, explanations and lesson routing.

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43 topic banks.
42 MCQs per topic.
1,806 topic MCQs total.

Verified for 2026–27Updated August 31, 2026How this page is verified

All 43 topic banks

Choose the exact AP Physics 1 topic

All 43 official topics are available. Each MCQ bank contains 42 original questions and each FRQ bank contains four prompts aligned to the four current free-response task types.

Topic 1.1Scalars & Vectors in One Dimension42 MCQs Topic 1.2Displacement, Velocity & Acceleration42 MCQs Topic 1.3Representing Motion42 MCQs Topic 1.4Reference Frames & Relative Motion42 MCQs Topic 1.5Vectors & Motion in Two Dimensions42 MCQs Topic 2.1Systems & Center of Mass42 MCQs Topic 2.2Forces & Free-Body Diagrams42 MCQs Topic 2.3Newton’s Third Law42 MCQs Topic 2.4Newton’s First Law42 MCQs Topic 2.5Newton’s Second Law42 MCQs Topic 2.6Gravitational Force42 MCQs Topic 2.7Kinetic & Static Friction42 MCQs Topic 2.8Spring Forces42 MCQs Topic 2.9Circular Motion42 MCQs Topic 3.1Translational Kinetic Energy42 MCQs Topic 3.2Work42 MCQs Topic 3.3Potential Energy42 MCQs Topic 3.4Conservation of Energy42 MCQs Topic 3.5Power42 MCQs Topic 4.1Linear Momentum42 MCQs Topic 4.2Change in Momentum and Impulse42 MCQs Topic 4.3Conservation of Linear Momentum42 MCQs Topic 4.4Elastic and Inelastic Collisions42 MCQs Topic 5.1Rotational Kinematics42 MCQs Topic 5.2Connecting Linear and Rotational Motion42 MCQs Topic 5.3Torque42 MCQs Topic 5.4Rotational Inertia42 MCQs Topic 5.5Rotational Equilibrium and Newton’s First Law in Rotational Form42 MCQs Topic 5.6Newton’s Second Law in Rotational Form42 MCQs Topic 6.1Rotational Kinetic Energy42 MCQs Topic 6.2Torque and Work42 MCQs Topic 6.3Angular Momentum and Angular Impulse42 MCQs Topic 6.4Conservation of Angular Momentum42 MCQs Topic 6.5Rolling42 MCQs Topic 6.6Motion of Orbiting Satellites42 MCQs Topic 7.1Defining Simple Harmonic Motion (SHM)42 MCQs Topic 7.2Frequency and Period of SHM42 MCQs Topic 7.3Representing and Analyzing SHM42 MCQs Topic 7.4Energy of Simple Harmonic Oscillators42 MCQs Topic 8.1Internal Structure and Density42 MCQs Topic 8.2Pressure42 MCQs Topic 8.3Fluids and Newton’s Laws42 MCQs Topic 8.4Fluids and Conservation Laws42 MCQs

Topic 2.3 · 42 MCQs

Newton’s Third Law Practice

All questions are original. Check each answer for immediate feedback and explanation, then use the lesson link inside the explanation when a concept needs repair.

Question 1

A 1800 kg truck collides with a 900 kg car. During the collision, how do the force of the truck on the car and the force of the car on the truck compare?

AEqual magnitude and opposite directionBThe truck’s force is larger because the truck is heavierCThe car’s force is larger because it accelerates moreDThey are equal only if the vehicles have equal masses

Question 2

A 2000 kg truck collides with a 950 kg car. During the collision, how do the force of the truck on the car and the force of the car on the truck compare?

Question 3

A 2200 kg truck collides with a 1000 kg car. During the collision, how do the force of the truck on the car and the force of the car on the truck compare?

Question 4

A 2400 kg truck collides with a 1050 kg car. During the collision, how do the force of the truck on the car and the force of the car on the truck compare?

Question 5

A 2600 kg truck collides with a 1100 kg car. During the collision, how do the force of the truck on the car and the force of the car on the truck compare?

Question 6

A 2800 kg truck collides with a 1150 kg car. During the collision, how do the force of the truck on the car and the force of the car on the truck compare?

Question 7

A 1 kg book rests on a table. Which pair is a Newton’s third-law pair for this interaction?

ATable on book normal force and book on table normal forceBBook weight and table on book normal forceCEarth on book gravity and table on book normal forceDBook weight and book on table force

Question 8

A 2 kg book rests on a table. Which pair is a Newton’s third-law pair for this interaction?

ATable on book normal force and book on table normal forceBBook weight and table on book normal forceCEarth on book gravity and table on book normal forceDBook weight and book on table force

Question 9

A 3 kg book rests on a table. Which pair is a Newton’s third-law pair for this interaction?

ATable on book normal force and book on table normal forceBBook weight and table on book normal forceCEarth on book gravity and table on book normal forceDBook weight and book on table force

Question 10

A 4 kg book rests on a table. Which pair is a Newton’s third-law pair for this interaction?

ATable on book normal force and book on table normal forceBBook weight and table on book normal forceCEarth on book gravity and table on book normal forceDBook weight and book on table force

Question 11

A 5 kg book rests on a table. Which pair is a Newton’s third-law pair for this interaction?

ATable on book normal force and book on table normal forceBBook weight and table on book normal forceCEarth on book gravity and table on book normal forceDBook weight and book on table force

Question 12

A 6 kg book rests on a table. Which pair is a Newton’s third-law pair for this interaction?

ATable on book normal force and book on table normal forceBBook weight and table on book normal forceCEarth on book gravity and table on book normal forceDBook weight and book on table force

Question 13

An ideal massless rope has tension 20 N at one end while the system is modeled with an ideal pulley. What is the tension elsewhere in the same ideal rope?

A20 NB0 NC40 ND10 N

Question 14

An ideal massless rope has tension 25 N at one end while the system is modeled with an ideal pulley. What is the tension elsewhere in the same ideal rope?

A25 NB0 NC50 ND12.5 N

Question 15

An ideal massless rope has tension 30 N at one end while the system is modeled with an ideal pulley. What is the tension elsewhere in the same ideal rope?

A30 NB0 NC60 ND15 N

Question 16

An ideal massless rope has tension 35 N at one end while the system is modeled with an ideal pulley. What is the tension elsewhere in the same ideal rope?

A35 NB0 NC70 ND17.5 N

Question 17

An ideal massless rope has tension 40 N at one end while the system is modeled with an ideal pulley. What is the tension elsewhere in the same ideal rope?

A40 NB0 NC80 ND20 N

Question 18

An ideal massless rope has tension 45 N at one end while the system is modeled with an ideal pulley. What is the tension elsewhere in the same ideal rope?

A45 NB0 NC90 ND22.5 N

Question 19

A 45 kg skater and a 70 kg skater push apart from rest. Which statement is correct during the push?

AThey exert equal-magnitude opposite forces on each other but can have different accelerationsBThe heavier skater exerts a larger forceCBoth must have the same accelerationDThe lighter skater exerts no force on the heavier skater

Question 20

A 50 kg skater and a 75 kg skater push apart from rest. Which statement is correct during the push?

Question 21

A 55 kg skater and a 80 kg skater push apart from rest. Which statement is correct during the push?

Question 22

A 60 kg skater and a 85 kg skater push apart from rest. Which statement is correct during the push?

Question 23

A 65 kg skater and a 90 kg skater push apart from rest. Which statement is correct during the push?

Question 24

A 70 kg skater and a 95 kg skater push apart from rest. Which statement is correct during the push?

Question 25

A system contains 2 interacting objects. Why can internal Newton’s-third-law force pairs cancel when writing the net external force on the whole system?

AEach internal interaction contributes an equal and opposite pair within the systemBInternal forces are always zeroCOnly gravitational forces are internalDThe forces act at the same point

Question 26

A system contains 3 interacting objects. Why can internal Newton’s-third-law force pairs cancel when writing the net external force on the whole system?

AEach internal interaction contributes an equal and opposite pair within the systemBInternal forces are always zeroCOnly gravitational forces are internalDThe forces act at the same point

Question 27

A system contains 4 interacting objects. Why can internal Newton’s-third-law force pairs cancel when writing the net external force on the whole system?

AEach internal interaction contributes an equal and opposite pair within the systemBInternal forces are always zeroCOnly gravitational forces are internalDThe forces act at the same point

Question 28

A system contains 5 interacting objects. Why can internal Newton’s-third-law force pairs cancel when writing the net external force on the whole system?

AEach internal interaction contributes an equal and opposite pair within the systemBInternal forces are always zeroCOnly gravitational forces are internalDThe forces act at the same point

Question 29

A system contains 6 interacting objects. Why can internal Newton’s-third-law force pairs cancel when writing the net external force on the whole system?

AEach internal interaction contributes an equal and opposite pair within the systemBInternal forces are always zeroCOnly gravitational forces are internalDThe forces act at the same point

Question 30

A system contains 7 interacting objects. Why can internal Newton’s-third-law force pairs cancel when writing the net external force on the whole system?

AEach internal interaction contributes an equal and opposite pair within the systemBInternal forces are always zeroCOnly gravitational forces are internalDThe forces act at the same point

Question 31