Force and Pressure MCQ Questions and Answers for Practice

1. With the increase in the weight of an object the pressure

1. increases
2. decreases
3. remains unchanged
4. none of these

2. Wheel is made circular, because

1. it minimises friction
2. it increases friction
3. to make them attractive
4. none of these

3. Tyres are provided with deep grooves on their surface to

1. reduce the cost of material used
2. increase the friction
3. decrease the friction
4. make them attractive

4. To increase pressure

1. area of contact is increased
2. area of contact is decreased
3. magnitude of thrust is decreased
4. none of these

5. The unit of pressure is

1. joule
2. newton
3. pascal
4. none of these

6. The SI unit of force is

1. joule
2. kg/m²
3. newton
4. pascal

7. The magnetic force is a

1. contact force
2. force at distance
3. consequential force
4. none of these

8. The force which an object exerts on any other object is

1. gravitational force
2. magnetic force
3. electrostatic force
4. frictional force

9. The force of friction

1. increases with the weight of body
2. decreases with the weight of body
3. is not affected by the weight of body
4. none of these

10. The deep grooves in the tyre of a tractor

1. decrease friction
2. increase friction
3. make it stable
4. make tyre more attractive

11. Rockets have a special streamlined body in order to

1. increase friction
2. reduce friction
3. make them attractive
4. none of these

12. One pascal is the pressure generated by

1. force of 1 N on 1 m²
2. force of 1 kgf on 1 m²
3. force of 1 N on 1000 cm²
4. force of 1 N on 1 cm²

13. Magnetic force causes

1. attraction only
2. repulsion only
3. both attraction and repulsion
4. none of these

14. If area of contact is increased, then

1. pressure increases
2. pressure decreases
3. pressure remains constant
4. none of these

15. Gravitational force is a

1. contact force
2. consequential force
3. action-at-a-distance force
4. none of these