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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 friction?

Please select an answer first.

Correct answer: A

The correct answer is A force that opposes motion between surfaces in contact.

  1. Identify the motion idea: Determine whether the question asks about force, motion, speed, acceleration, mass, weight, or an interaction.
  2. Connect the evidence: Friction acts between contacting surfaces and generally opposes their relative motion.
  3. Check the net effect: Compare the direction and size of forces to decide whether motion stays the same or changes.

Friction acts between contacting surfaces and generally opposes their relative motion.

2. QuestionMultiple choice

Which surface usually produces more friction for a sliding box?

Please select an answer first.

Correct answer: B

The correct answer is A rough carpet.

  1. Identify the motion idea: Determine whether the question asks about force, motion, speed, acceleration, mass, weight, or an interaction.
  2. Connect the evidence: Rougher surfaces generally create more resistance to sliding than smoother surfaces.
  3. Check the net effect: Compare the direction and size of forces to decide whether motion stays the same or changes.

Rougher surfaces generally create more resistance to sliding than smoother surfaces.

3. QuestionMultiple choice

How can lubrication reduce friction?

Please select an answer first.

Correct answer: C

The correct answer is It places a layer between surfaces so they slide more easily..

  1. Identify the motion idea: Determine whether the question asks about force, motion, speed, acceleration, mass, weight, or an interaction.
  2. Connect the evidence: Lubricants reduce direct contact and make motion between surfaces easier.
  3. Check the net effect: Compare the direction and size of forces to decide whether motion stays the same or changes.

Lubricants reduce direct contact and make motion between surfaces easier.

4. QuestionMultiple choice

Why do vehicle tires have tread patterns?

Please select an answer first.

Correct answer: D

The correct answer is Treads improve grip by helping create friction with the road..

  1. Identify the motion idea: Determine whether the question asks about force, motion, speed, acceleration, mass, weight, or an interaction.
  2. Connect the evidence: Friction between tires and the road helps vehicles accelerate, turn, and stop.
  3. Check the net effect: Compare the direction and size of forces to decide whether motion stays the same or changes.

Friction between tires and the road helps vehicles accelerate, turn, and stop.

5. QuestionMultiple choice

What is gravity?

Please select an answer first.

Correct answer: A

The correct answer is An attractive force between masses.

  1. Identify the motion idea: Determine whether the question asks about force, motion, speed, acceleration, mass, weight, or an interaction.
  2. Connect the evidence: Gravity acts between objects with mass and pulls them toward one another.
  3. Check the net effect: Compare the direction and size of forces to decide whether motion stays the same or changes.

Gravity acts between objects with mass and pulls them toward one another.

6. QuestionMultiple choice

Why do objects near Earth accelerate downward when dropped?

Please select an answer first.

Correct answer: B

The correct answer is Earth's gravitational force pulls them downward..

  1. Identify the motion idea: Determine whether the question asks about force, motion, speed, acceleration, mass, weight, or an interaction.
  2. Connect the evidence: Earth's gravity produces a downward acceleration for falling objects.
  3. Check the net effect: Compare the direction and size of forces to decide whether motion stays the same or changes.

Earth's gravity produces a downward acceleration for falling objects.

7. QuestionMultiple choice

What is air resistance?

Please select an answer first.

Correct answer: C

The correct answer is A friction-like force that opposes motion through air.

  1. Identify the motion idea: Determine whether the question asks about force, motion, speed, acceleration, mass, weight, or an interaction.
  2. Connect the evidence: Air resistance acts opposite an object's movement through the air.
  3. Check the net effect: Compare the direction and size of forces to decide whether motion stays the same or changes.

Air resistance acts opposite an object's movement through the air.

8. QuestionMultiple choice

Why does a parachute slow a skydiver?

Please select an answer first.

Correct answer: D

The correct answer is It increases air resistance by increasing the area pushing against the air..

  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 larger parachute creates more air resistance, reducing the net downward force and speed.
  3. Check the net effect: Compare the direction and size of forces to decide whether motion stays the same or changes.

The larger parachute creates more air resistance, reducing the net downward force and speed.

9. QuestionMultiple choice

What is a normal force?

Please select an answer first.

Correct answer: A

The correct answer is A support force perpendicular to a surface.

  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 table pushes upward on a book with a normal force that supports the book against gravity.
  3. Check the net effect: Compare the direction and size of forces to decide whether motion stays the same or changes.

A table pushes upward on a book with a normal force that supports the book against gravity.

10. QuestionMultiple choice

Why can a box remain at rest while several forces act on it?

Please select an answer first.

Correct answer: B

The correct answer is The forces can be balanced, producing zero net force..

  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 object can remain at rest when the total force is zero.
  3. Check the net effect: Compare the direction and size of forces to decide whether motion stays the same or changes.

An object can remain at rest when the total force is zero.

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