Force and Pressure Multiple Choice Questions and Answers

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

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

12. Wheel is made circular, because

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

13. 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

14. 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

15. The unit of pressure is

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

16. The SI unit of force is

1. joule
2. kg/m²
3. newton
4. pascal

17. The magnetic force is a

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

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

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

19. 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

20. The deep grooves in the tyre of a tractor

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