Force and Laws of Motion Practice Questions

Class 9 · Science · 2719 free MCQs with instant results and detailed explanations.

2719

Total

933

Easy

1345

Medium

441

Hard

Start Practicing Force and Laws of Motion

Take a timed quiz or customize your practice session

Quick Quiz (10 Qs) → Mock Test (25 Qs) ⚙ Customize

Topics in Force and Laws of Motion

Balanced and Unbalanced Forces 616

Inertia 681

Conservation of Momentum 499

Momentum 421

Newton's Laws 502

Sample Questions from Force and Laws of Motion

Here are 10 sample questions. Start a quiz to get randomized questions with scoring.

Easy

What occurs when balanced forces act on an object?

A. It remains at rest or moves at a constant speed.

B. It accelerates in one direction.

C. It changes its shape.

D. It stops moving.

Show Answer & Explanation

Correct Answer: A

Balanced forces mean the total force is zero, resulting in no change in motion.

Easy

Which of the following is an example of unbalanced forces?

A. A book resting on a table.

B. A car accelerating on a road.

C. A lamp standing still on a desk.

D. A tree swaying in the wind.

Show Answer & Explanation

Correct Answer: B

Unbalanced forces cause acceleration; thus, a car accelerating has unbalanced forces acting on it.

Easy

If two forces of 5 N each act on an object in opposite directions, what is the net force?

A. 0 N

B. 5 N

C. 10 N

D. 2.5 N

Show Answer & Explanation

Correct Answer: A

Forces in opposite directions cancel each other, resulting in a net force of 0 N.

Medium

A book is resting on a table. Which of the following forces are acting on it?

A. Only gravitational force

B. Only normal force

C. Gravitational force and normal force

D. Frictional force only

Show Answer & Explanation

Correct Answer: C

Both gravitational force (downward) and normal force (upward) are acting on the book, balancing each other.

Medium

If a car accelerates as it goes around a curve, what type of force is acting on it?

A. Balanced force

B. Unbalanced force

C. Frictional force only

D. Gravitational force only

Show Answer & Explanation

Correct Answer: B

The acceleration indicates that there is an unbalanced force causing the car to change direction.

Medium

Which of the following scenarios depicts balanced forces?

A. A skateboarder pushing off the ground

B. A car parked on a level road

C. A ball rolling down a hill

D. A person pushing a stationary wall

Show Answer & Explanation

Correct Answer: B

A parked car experiences balanced forces as the gravitational force is balanced by the normal force from the ground.

Medium

What is the net force acting on an object that has a weight of 50 N downward and is supported by a normal force of 50 N upward?

A. 100 N downward

B. 50 N upward

C. 0 N

D. 50 N downward

Show Answer & Explanation

Correct Answer: C

The upward normal force equals the downward weight, resulting in a net force of zero.

Hard

Which of the following scenarios describes an unbalanced force acting on an object?

A. A book resting on a table

B. A car going at a constant speed on a straight road

C. A child pushing a sled that moves faster

D. A ball sitting on a sloped surface

Show Answer & Explanation

Correct Answer: C

An unbalanced force results in a change in motion, such as acceleration when the child pushes the sled.

Hard

If two forces of 15 N and 25 N act on an object in opposite directions, what is the net force acting on the object?

A. 40 N

B. 10 N

C. 15 N

D. 25 N

Show Answer & Explanation

Correct Answer: B

The net force is the difference between the two opposing forces, 25 N - 15 N = 10 N.

Q10

Hard

In a tug of war, if one team pulls with a force of 300 N and the other team pulls with a force of 250 N, what is the magnitude of the net force?

A. 50 N

B. 500 N

C. 300 N

D. 250 N

Show Answer & Explanation

Correct Answer: A

Net force is the difference in forces, 300 N - 250 N = 50 N towards the stronger team.

Showing 10 of 2719 questions. Start a quiz to practice all questions with scoring and timer.

Practice All 2719 Questions →

More Science Chapters

1 Matter in Our Surroundings

3300 Qs →

2 Is Matter Around Us Pure

3229 Qs →

3 Atoms and Molecules

2697 Qs →

4 Structure of the Atom

2914 Qs →

5 The Fundamental Unit of Life

3467 Qs →

6 Tissues

3489 Qs →

7 Diversity in Living Organisms

3499 Qs →

8 Motion

2427 Qs →

Other Class 9 Subjects

📐 Mathematics → 🌍 Social Science →

Force and Laws of Motion — Class 9 Science Practice Questions Online

This page contains 2719 practice MCQs for the chapter Force and Laws of Motion in Class 9 Science. The questions are organized by difficulty — 933 easy, 1345 medium, 441 hard — so you can choose the right level for your preparation.

Every question includes a detailed explanation to help you understand the concept, not just memorize answers. Take a timed quiz to simulate exam conditions, or practice at your own pace with no time limit. This chapter covers 5 topics, giving you comprehensive coverage of the entire chapter.