Force Concept - raiseacad.com

This consists of 2 tests with 10 multiple-choice questions each focused on the concept of force, designed specifically for IIT JEE aspirants. Each question is of the single correct type and covers key topics such as Newton’s laws, friction, tension, inclined planes, circular motion, and spring force. The questions range from basic applications to conceptual and numerical problems, helping students strengthen their understanding and problem-solving skills. Correct answers are provided for self-assessment. This test is ideal for practice, revision, and identifying weak areas in mechanics. It aims to build accuracy and speed, essential for success in competitive exams like IIT JEE.

Force Concept (Test 1)

1 / 10

A block of mass 2 kg is placed on a frictionless surface. A force of 10 N is applied. What is the acceleration of the block?

2 m/s²

5 m/s²

10 m/s²

20 m/s²

2 / 10

A 5 kg block is pulled with a force of 25 N on a rough surface. If the frictional force is 5 N, what is the acceleration?

4 m/s²

5 m/s²

6 m/s²

3 m/s²

3 / 10

A block slides down a smooth incline of angle 30°. What is its acceleration?

g/2

g/√2

g/3

4 / 10

A block of mass 10 kg is hanging from a rope. What is the tension in the rope if the block is at rest?

100 N

10 N

0 N

50 N

5 / 10

Two blocks of masses 3 kg and 2 kg are connected and pulled with a force of 20 N. What is the acceleration of the system (frictionless)?

4 m/s²

5 m/s²

6 m/s²

2 m/s²

6 / 10

A block of mass 4 kg is placed on a rough surface. Coefficient of static friction is 0.5. What is the maximum static friction?

10 N

20 N

40 N

0 N

7 / 10

A block is moving with constant velocity on a rough surface. What is the net force acting on it?

Zero

Equal to friction

Greater than friction

Less than friction

8 / 10

A block of mass 2 kg is placed on a frictionless incline of angle 60°. What is the normal force?

10 N

20 N

2g cos(60)

9 / 10

A block of mass 5 kg is acted upon by two forces: 15 N right and 5 N left. What is the net force?

10 N

20N

5 N

0 N

10 / 10

A block of mass 3 kg is suspended and accelerating upward at 2 m/s². What is the tension in the string?

30 N

36 N

24 N

20 N

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Force Concept (Test 2)

1 / 10

A block of mass 6 kg is placed on a frictionless surface. A force of 18 N is applied. What is the acceleration?

3 m/s²

6 m/s²

2 m/s²

9 m/s²

2 / 10

A block of mass 10 kg is placed on an incline of 37°. Coefficient of friction is 0.2. What is the frictional force?

20 N

10 N

16 N

0 N

3 / 10

A block of mass 2 kg is moving in a circular path of radius 1 m with speed 4 m/s. What is the centripetal force?

8 N

16 N

4 N

2 N

4 / 10

A spring is stretched by 0.1 m and has a spring constant of 200 N/m. What is the force exerted by the spring?

20 N

200 N

2 N

0.2 N

5 / 10

A block of mass 1 kg is moving with velocity 5 m/s. A force of 2 N is applied opposite to motion. How long to stop?

2.5 s

10 s

5 s

10 s

6 / 10

A block of mass 3 kg is pushed against a wall with 60 N. Coefficient of static friction is 0.5. Will it stay?

Yes

Moves slowly

Not enough data

7 / 10

A block of mass 2 kg is placed on a horizontal surface. A force of 5 N is applied at 60° above horizontal. What is the vertical component?

2.5 N

4.3 N

5 N

0 N

8 / 10

A block of mass 4 kg is placed on a rough incline of 30°, μ = 0.4. What is the frictional force?

15.7 N

10 N

20 N

5 N

9 / 10

A block of mass 10 kg is suspended by two ropes at 30° and 60°. What is the tension in the rope at 30°?

50 N

100 N

86.6 N

20 N

10 / 10

A block of mass 5 kg is dropped from 10 m. What is the force acting just before hitting ground?

50 N

100 N

200 N

10 N

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The average score is 0%