Question

A. Tick the most appropriate answer.

1. Which of the following is not an effect of force?

a. change in the direction of an object

b. change in the shape and size of an object

c. change in the mass of an object

d. change in the position of a stationary object

2. Which of the following is a contact force?

a. gravitational force

b. frictional force

c. electrostatic force

d. magnetic force

3. Which force is responsible for the weight of an object?

a. muscular force

b. frictional force

c. gravitational force

d. none of these

4. A charged ruler attracts bits of paper due to

a. gravitational force.

b. magnetic force.

c. electrostatic force.

d. none of these

5. A car can skid on a wet road due to

a. increased friction between the road and the tyres.

b. streamlined shape of the car.

c. reduced friction between the road and the tyres.

d. both b and c

6. Friction can be reduced by

a. providing wheels.

b. lubricating.

c. streamlining.

d. all of these​

Answer 1

Answer:

1. (c)

2. (b)

3. (c)

4. (c)

5. (c)

6. (d)