# MCQ Questions for Class 8 Science Chapter 11 Force and Pressure with Answers

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Below you will find MCQ Questions of Chapter 11 Force and Pressure Class 8 Science Free PDF Download that will help you in gaining good marks in the examinations and also cracking competitive exams. These Class 8 MCQ Questions with answers will widen your skills and understand concepts in a better manner. # MCQ Questions for Class 8 Science Chapter 11 Force and Pressure with answers

1. Leaves or fruits fall on the ground due to

(a) magnetic force

(b) gravitational force

(c) electrostatic force

(d) muscular force

► (b) gravitational force

2. When two forces act in opposite directions, then net force acting is the

(a) Sum of two forces

(b) Difference between two forces

(c) Both of the above

(d) None of the above

► (b) Difference between two forces

3. The speed of moving ball increase further if force is applied in

(a) Opposite to direction of motion

(b) Parallel to direction of motion

(c) Direction of motion

(d) Perpendicular to direction of motion

► (c) Direction of motion

4. Otto von Guericke was a scientist of

(a) Italy

(b) Russia

(c) Germany

(d) America

► (c) Germany

5. A force has

(a) Only direction

(b) Both magnitude and direction absent

(c) Both magnitude and direction

(d) Only magnitude

► (c) Both magnitude and direction

5. Magnetic force is

(a) Contact force

(b) Non-contact force

(c) both (a) and (b)

(d) None of the above

► (b) Non-contact force

6. Which force enables us to perform all activities involving movement or bending of our body?

(a) Frictional force

(b) Magnetic force

(c) Electrostatic force

(d) Muscular force

► (d) Muscular force

7. Electrostatic force is exerted by charged body on

(a) Another charged body or uncharged body

(b) Metallic body only

(c) Another uncharged body only

(d) Another charged body only

► (a) Another charged body or uncharged body

8. How does the pressure exerted by a liquid change?

(a) Increases with depth

(b) Decreases with depth

(c) Remains constant

(d) First increases and then decreases

► (a) Increases with depth

9. When does a body float on water?

(a) When no force is acting on it.

(b) When the net force acting on the body is zero

(c) When there is a gravitational pull.

(d) When there is friction between the body and the water

► (b) When the net force acting on the body is zero

10. What is the cause of change in motion or change in the state of motion?

(a) Pressure

(b) Atmospheric Pressure

(c) Force

(d) Friction

► (c) Force

11. Which of the following is a non-contact force?

(a) Muscular force

(b) Electrostatic force

(c) Elastic spring force

(d) Frictional force

► (b) Electrostatic force

12. Which one is an example that shows that force can change shape and size of object?

(a) Force applied to increase the speed

(b) Force applied on cricket ball

(c) Force applied on large stone

(d) Force applied on inflated balloon

► (d) Force applied on inflated balloon

13. A push or pull on an object is called

(a) Gravitation

(b) Pressure

(c) Push-pull

(d) Force

► (d) Force

14. The net force on an object is zero if the two forces act on it in

(a) Opposite direction

(b) Same direction

(c) Sometimes opposite and sometimes in same direction.

(d) All of the above.

► (a) Opposite direction

15. In which of the following cases the net force is not equal to zero?

(a) A kite held stationary in the sky.

(b) A ball falling freely from a height.

(c) A helicopter hovering above the ground.

(d) A cork floating on the surface of water.

► (b) A ball falling freely from a height.

16. A deep sea diver's ears get hurt when he is inside the water. What is the cause for it?

(a) Lack of oxygen

(b) Decrease in atmospheric pressure

(c) Increase in water pressure

(d) All of the above

► (c) Increase in water pressure

17. A force of 16N acts on an area of 50 cm2. What is the pressure in pascal?

(a) 4200 Pa

(b) 5200 Pa

(c) 3200 Pa

(d) 2200 Pa

► (c) 3200 Pa

18. If no force acts on a body at rest, then what effect can be observed?

(a) The body changes shape.

(b) The body moves with increased speed.

(c) The body remains at rest.

(d) The body breaks up.

► (c) The body remains at rest.

19. Like poles of magnet

(a) Repels each other

(b) Attach with each other

(c) Either attract or repels

(d) Attract each other

► (a) Repels each other

20. The force between two charged bodies is called

(a) Muscular force

(b) Gravitational force

(c) Magnetic force

(d) Electrostatic force

► (d) Electrostatic force

21. A force is applied on an object in the direction of its motion. What is the effect of force on the object?

(a) The speed of the object will increase.

(b) The speed of the object will decrease.

(c) The speed of the object will remain unchanged.

(d) The object comes to rest

► (a) The speed of the object will increase.

22. Gravitational force is acting on

(a) Only on moon

(b) Only on other planets

(c) Only on earth

(d) All bodies

► (d) All bodies

23. Which of the following effects is caused by frictional force?

(a) Change in the shape of an object

(b) Change in the direction of the motion of an object

(c) Slowing down of a moving object

(d) Acceleration in a moving body

► (c) Slowing down of a moving object

24. Which of the following examples describe the change of shape on applying force?

(a) A ball being kicked

(b) A fan switched on

(c) A man jumping from a height

(d) Repeatedly tearing of a paper

► (d) Repeatedly tearing of a paper

25. Four forces are acting on a body. If the body does not change its position or shape/then what does it mean?

(a) Forces are similar acting in the same direction.

(b) Forces are parallel and opposite.

(c) Forces add up to zero when taken as vectors.

(d) Forces are different acting in the same direction.

► (c) Forces add up to zero when taken as vectors.

26. Leaves or fruits fall on the ground due to

(a) Magnetic force

(b) Gravitational force

(c) Electrostatic force

(d) Muscular force

► (b) Gravitational force

27. The net force on an object is __________ if the two forces acting on it in opposite directions are equal.

(a) Always more

(b) Towards left

(c) Zero

(d) Towards right

► (c) Zero

28. What is thrust equal to?

(a) Force × area

(b) Force / area

(c) Pressure

(d) Pressure × area

► (d) Pressure × area

Hope the given MCQ Questions will help you in cracking exams with good marks. These Force and Pressure MCQ Questions will help you in practising more and more questions in less time.