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Forces and Motion Practice Tests

These Grade 7 Science practice tests build understanding of forces, net force, balanced and unbalanced forces, speed, velocity, acceleration, friction, gravity, mass, weight, and Newton's laws.

Skills covered

  • Describing motion with position, reference points, speed, velocity, and acceleration
  • Comparing balanced and unbalanced forces and determining net force direction
  • Explaining friction, gravity, air resistance, and normal force
  • Applying Newton's first, second, and third laws to everyday situations
  • Interpreting simple force, motion, and measurement scenarios

How to use these practice tests

For each question, identify the object and the forces acting on it. Then compare force directions and sizes before deciding whether the object remains at rest, moves at constant velocity, or accelerates.

For more Grade 7 Science practice, return to the Grade 7 Science category.

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Grade 7 Forces and Motion Practice Tests

Practice Grade 7 Science forces and motion questions about net force, speed, acceleration, friction, gravity, mass, weight, and Newton laws.

Choose the best answer for each question. Review the explanation after submitting your answers.

10 Questions
0/10 Questions0 %
Correct 0
Incorrect 0
Unanswered 10
1. QuestionMultiple choice

What is speed?

Please select an answer first.

Correct answer: A

The correct answer is The distance an object travels per unit of time.

  1. Identify the motion idea: Determine whether the question asks about force, motion, speed, acceleration, mass, weight, or an interaction.
  2. Connect the evidence: Speed describes how quickly distance is covered and can be calculated as distance divided by time.
  3. Check the net effect: Compare the direction and size of forces to decide whether motion stays the same or changes.

Speed describes how quickly distance is covered and can be calculated as distance divided by time.

2. QuestionMultiple choice

A runner travels 100 meters in 20 seconds. What is the average speed?

Please select an answer first.

Correct answer: B

The correct answer is 5 meters per second.

  1. Identify the motion idea: Determine whether the question asks about force, motion, speed, acceleration, mass, weight, or an interaction.
  2. Connect the evidence: Average speed equals distance divided by time: 100 meters ÷ 20 seconds = 5 meters per second.
  3. Check the net effect: Compare the direction and size of forces to decide whether motion stays the same or changes.

Average speed equals distance divided by time: 100 meters ÷ 20 seconds = 5 meters per second.

3. QuestionMultiple choice

What is velocity?

Please select an answer first.

Correct answer: C

The correct answer is Speed in a particular direction.

  1. Identify the motion idea: Determine whether the question asks about force, motion, speed, acceleration, mass, weight, or an interaction.
  2. Connect the evidence: Velocity includes both how fast an object moves and the direction of its motion.
  3. Check the net effect: Compare the direction and size of forces to decide whether motion stays the same or changes.

Velocity includes both how fast an object moves and the direction of its motion.

4. QuestionMultiple choice

What is acceleration?

Please select an answer first.

Correct answer: D

The correct answer is A change in velocity over time.

  1. Identify the motion idea: Determine whether the question asks about force, motion, speed, acceleration, mass, weight, or an interaction.
  2. Connect the evidence: Acceleration occurs when speed changes, direction changes, or both change over time.
  3. Check the net effect: Compare the direction and size of forces to decide whether motion stays the same or changes.

Acceleration occurs when speed changes, direction changes, or both change over time.

5. QuestionMultiple choice

Which object is accelerating?

Please select an answer first.

Correct answer: A

The correct answer is A bicycle turning left at constant speed.

  1. Identify the motion idea: Determine whether the question asks about force, motion, speed, acceleration, mass, weight, or an interaction.
  2. Connect the evidence: A change in direction is a change in velocity, so the turning bicycle accelerates.
  3. Check the net effect: Compare the direction and size of forces to decide whether motion stays the same or changes.

A change in direction is a change in velocity, so the turning bicycle accelerates.

6. QuestionMultiple choice

What does a straight horizontal line on a position-time graph usually show?

Please select an answer first.

Correct answer: B

The correct answer is The object's position is not changing..

  1. Identify the motion idea: Determine whether the question asks about force, motion, speed, acceleration, mass, weight, or an interaction.
  2. Connect the evidence: A horizontal position-time line means position remains constant as time passes.
  3. Check the net effect: Compare the direction and size of forces to decide whether motion stays the same or changes.

A horizontal position-time line means position remains constant as time passes.

7. QuestionMultiple choice

What does a steeper line on a position-time graph represent?

Please select an answer first.

Correct answer: C

The correct answer is A greater speed in the direction shown by the graph.

  1. Identify the motion idea: Determine whether the question asks about force, motion, speed, acceleration, mass, weight, or an interaction.
  2. Connect the evidence: The slope of a position-time graph represents speed; a steeper slope means more position change per time.
  3. Check the net effect: Compare the direction and size of forces to decide whether motion stays the same or changes.

The slope of a position-time graph represents speed; a steeper slope means more position change per time.

8. QuestionMultiple choice

What does a horizontal line on a speed-time graph show?

Please select an answer first.

Correct answer: D

The correct answer is The object has constant speed..

  1. Identify the motion idea: Determine whether the question asks about force, motion, speed, acceleration, mass, weight, or an interaction.
  2. Connect the evidence: A horizontal speed-time line means the speed value stays constant, though the object may still be moving.
  3. Check the net effect: Compare the direction and size of forces to decide whether motion stays the same or changes.

A horizontal speed-time line means the speed value stays constant, though the object may still be moving.

9. QuestionMultiple choice

If a car changes from 10 meters per second to 20 meters per second, what happened?

Please select an answer first.

Correct answer: A

The correct answer is Its speed increased, so it accelerated..

  1. Identify the motion idea: Determine whether the question asks about force, motion, speed, acceleration, mass, weight, or an interaction.
  2. Connect the evidence: An increase in speed is a change in velocity and therefore is acceleration.
  3. Check the net effect: Compare the direction and size of forces to decide whether motion stays the same or changes.

An increase in speed is a change in velocity and therefore is acceleration.

10. QuestionMultiple choice

Why is a reference direction needed when describing velocity?

Please select an answer first.

Correct answer: B

The correct answer is Velocity includes direction as well as speed..

  1. Identify the motion idea: Determine whether the question asks about force, motion, speed, acceleration, mass, weight, or an interaction.
  2. Connect the evidence: Two objects can have the same speed but different velocities if they move in different directions.
  3. Check the net effect: Compare the direction and size of forces to decide whether motion stays the same or changes.

Two objects can have the same speed but different velocities if they move in different directions.

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