set 1 MCQ Questions & Answers Detailed Explanation

Question : 1

If an object having mass of 1 kg is subjected to a force of 1 N it moves with

a) an acceleration of 10 m/s²

b) a speed of 1 km/s

c) a speed of 1 m/s

d) an acceleration of 1 m/s²

Question : 2

Two bodies A and B have masses M and m respectively where M > m and they are at a distance d apart. Equal force is applied to them so that they approach each other. The position where they hit each other is

a) at equal distance from A and B

b) nearer to A

c) nearer to B

d) cannot be determined

Question : 3

Four cars A, B, C and D are moving on a levelled road. Their distance versus time graphs are shown in figure. Choose the correct statement.

a) Car C is faster than car D.

b) Car B is the slowest.

c) Car A is faster than car D

d) Car C is the lowest.

Question : 4

Consider the following statements:
A 4-wheel vehicle moving in a sharp circular path at high speed will :

1. overturn about its outer wheels
2. overturn about its inner wheels
3. skid outwards
4. skid inwards

a) 2 and 3

b) 1 and 3

c) 2 and 4

d) 1 and 4

Question : 5

Frictional force

a) may act in the direction of motion

b) always acts in the direction of motion

c) always acts opposite to the direction of motion

d) always acts perpendicular to the direction of motion

Question : 6

For inelastic collision between two spherical rigid bodies

a) the linear momentum is not conserved

b) the total mechanical energy is not conserved

c) the total kinetic energy is conserved

d) the linear momentum is conserved