Force and Laws of Motion

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Question

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Question 1 :

A unit of force is

1. Joule
2. Joule – m
3. Newton – m
4. Kg ms⁻²
Answer
26359

Question 2 :

10⁵ dyne is equal to

1. 1N
2. 1.5N
3. 2.5N
4. 2N
Answer
26360

Question 3 :

Statement A: Gravitational force is the weakest force in nature
Statement B: Electrostatic force is the example of non – contact force
Which of the above two statement is true?

1. statement A
2. statement B
3. neither statement A nor B
4. both the statement a and b
Answer
26361

Question 4 :

Ayush hits a cricket ball which than rolls of a level ground after covering a short distance, the ball comes to rest. The ball slows to a stop because

1. There is a force on the ball opposing the motion
2. There is no unbalanced force on the ball so the ball would want to come to rest.
3. Ayush did not hit the ball hard enough
4. Velocity is proportional to the force exerted on the ball.
Answer
26362

Question 5 :

Match the following with correct response.
(1) Action and reaction
(2) Magnitude of force
(3) Momentum
(4) Resultant of balanced force

(A) No acceleration
(B) Newton’s second law
(C) Act on different objects
(D) Scalar quantity

1. 1-C, 2-B, 3-D, 4-A
2. 1-D, 2-A, 3-C, 4-B
3. 1-B, 2-D, 3-A, 4-C
4. 1-A, 2-C, 3-B, 4-D
Answer
26363