Force and pressure MCQs with Answers

Question-1. A stretching force of 10 N is applied at one end of a spring balnce and an equal stretching force is applied at the other end at the same time.What will be reading of the balance ?

1. 0 N
2. 5 N
3. 10 N
4. 20 N

Question-2. The weight of air that every square centimetre of any surface carries is

1. 1 kg
2. 10 kg
3. 1 gm
4. 100 kg

Question-3. How much force is required to lift a mass of 100g

1. 10 N
2. 1 N
3. 100 N
4. 1000 N

Question-4. 1 kilogram weight is equal to

1. 98 N
2. 9.8 N
3. 0.98 N
4. 0.098 N

Question-5. A Force Can Produce Many Effects. Choose The Correct Statements

1. A force can change the speed of a moving object.
2. A force can change the direction of a moving object.
3. A force can change the shape and size of an object.
4. All the above

Question-6. The pressure exerted by the air is known as

1. air pressure
2. gas pressure
3. atmospheric pressure
4. none of these

Question-7. Force acts on an object may change

1. All of these
2. Direction
3. Shape
4. Speed

Question-8. External forcees are

1. Always balanced
2. Never balanced
3. May or may not be balanced
4. None of these

Question-9. 1 Newton is a force which produces

1. An acceleration of 1 ms?2 in a body of mass 1g.
2. An acceleration of ms?2 in a body of mass1kg
3. AN acceleration of 1 cms?2 in a body of mass 1kg
4. An acceleration of ms?2 in a body of mass 10g.

Question-10. Pressure is

1. Area / force on which it acts
2. force / area on which it acts
3. Volume / force on which it acts
4. Force / volume on which it acts

Question-11. What is state of motion?

1. Both by the state of rest or motion
2. Position of rest
3. Position of motion
4. None of the options

Question-12. A force applied on a moving body may

1. bring it to rest
2. increase its speed
3. decrease the speed
4. all of the above

Question-13. A force can

1. Change the direction of a moving body
2. Change the state of rest or uniform motion of a body
3. Change the shape of body
4. All of the above

Question-14. A batsman hits the ball for a boundary past the bowler i.e. four runs. The batsman thus

1. Changes the direction & speed of the ball
2. Does not change the direction but speed only
3. Does not change the speed but direction only
4. Does not change either direction or speed

Question-15. If you press an inflated balloon, it deforms due to a type of

1. contact force
2. non-contact force
3. gravitational force
4. none of these

Question-16. The pressure exerted by a liquid

1. decreases with depth
2. does not change with depth
3. increases with depth
4. is different in different directions at he same depth

Question-17. When two forces act in opposite directions, then net force acting two forces

1. Difference bwteen two factors
2. Sum of two factors
3. Sum of two factors and difference bwteen two factors
4. None of the options

Question-18. A force when applied brings change in ?

1. Direction of motion of the body
2. Speed of moving body
3. Shape of the body
4. Any of these

Question-19. If the normal reaction Rbetween the two surfaces in contact is double what happen to the coefficient of friction.

1. Double
2. Halved
3. Unchanged
4. Depend on the nature of surface.

Question-20. SI unit of force is

1. dyne
2. newton
3. gf.
4. can?t say

Question-21. Gravity is the property of

1. earth above
2. every object
3. moon above
4. none

Question-22. The force between two charged bodies is called

1. Electrostatic force
2. Muscular force
3. Gravitational force
4. Magnetic force

Question-23. The force exerted by the earth to pull the object towards itself is called

1. electrostatic force
2. gravitational force
3. muscular force
4. contact force

Question-24. Which Of The Following Is Not A Non-Contact Force?

1. Electrostatic force
2. Gravitational force
3. Frictional force
4. Magnetic force

Question-25. A contact force cannot act through

1. empty space
2. touching
3. touching with a metal rod
4. touching with a wooden rod

Question-26. If In a tug-o-war, when two teams are pulling a rope, and the rope does not move towards any team, it implies that

1. Equal force is being applied in the same direction
2. Equal Force is being applied in opposite direction
3. No force is applied in any direction
4. Cannot be explained

Question-27. A ball rolling on the ground slows down and finally stops. This is because of

1. Force
2. Less force applied
3. Friction
4. None of the above

Question-28. The ratio of force, acting perpendicular to the area, on which it acts is known as

1. Force
2. Friction
3. Presuure
4. Density

Question-29. An example of a non- contact force is

1. Force exerted by us to lift a bucket
2. Push a stationary car
3. Force exerted by magnet
4. Hit a cricket ball for a 6 run

Question-30. Which One Of The Following Forces Is A Contact Force?

1. Force of gravity
2. Force of friction
3. Magnetic force
4. Electrostatic force

Question-31. During Dry Weather, While Combing Hair, Sometimes We Experience Hair Flying Apart. The Force Responsible For This Is

1. Force of gravity.
2. Electrostatic force.
3. Force of friction.
4. Magnetic force.

Question-32. A force that opposes the motion of one surface sliding over another is called

1. friction
2. newton
3. lubrication
4. ball bearing

Question-33. The force responsible for the wearing out of the car tyres is ?

1. Frictional force
2. Gravitational force
3. Magnetic force
4. Muscular force

Question-34. The force you use to stretch a rubber band is ?

1. Frictional force
2. Gravitational force
3. Magnetic force
4. Muscular force

Question-35. The force you will use to collect the iron nails scattered on a sandy ground is ?

1. Frictional force
2. Gravitational force
3. Magnetic force
4. None of these

Question-36. Two objects repel each other. This repulsion could be due to

1. frictional force only
2. electrostatic force only
3. magnetic force only
4. either a magnetic or an electrostatic force

Question-37. A boat comes to rest if we stop rowing it due to

1. gravitation force
2. force of friction
3. muscular force
4. none of these

Question-38. Which is not a non-contact force

1. Gravitational
2. Eleectrostatic
3. Magnetic
4. Frictional

Question-39. Leaves or fruits fall on the ground due to

1. Gravitational force
2. Magnetic force
3. Electostatic force
4. Muscular force

Question-40. The force exerted by a charged body on another char

1. gravitational force
2. electrostatic force
3. non-contact force
4. contact force

Question-41. By decreasing the contact area the pressure

1. is decreased
2. remain same
3. is increased
4. none of these

Question-42. A man walking on the street slips on a banana skin because

1. it is sticky
2. his foot crushes it
3. at that point there is very little friction
4. all of these.

Question-43. A force can be completely described by

1. Its magnitude
2. Its direction
3. Its magnitude and direction
4. Neither magnitude nor direction

Question-44. If a rock is brought from the surface of the moon.

1. Its mass will change
2. Its weight will change, but not mass
3. Both mass and weight will change
4. Its mass and weight will remain the same

Question-45. When an object undergoes acceleraton

1. Its speed always increases
2. Its velocity always increases
3. It always falls towards the earth
4. A force always acts on it

Question-46. Which of the following actions describe pushing force?

1. Kicking
2. Lifting
3. Picking
4. Opening

Question-47. The force exerted by a charged body on another charged or uncharged body is known as

1. Magnetic force
2. Gravitational force
3. Electrostatic force
4. Muscular force

Question-48. The force exerted by one object on another by virtue of their masses is

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

Question-49. The force involved in falling an apple from a tree is

1. Magnetic force
2. Contact force
3. Electrostatic force
4. Gravitational force

Question-50. The strength of force is expressed by?

1. Magnitude
2. Weight
3. Mass
4. Longitudinal force

Question-51. Force exerted by the muscless is known as

1. mechanical force
2. gravitational force
3. electrostatic force
4. muscular force

Question-52. The instrument used of measure atmospheric pressure is

1. mercury barometer
2. manometer
3. pressure meter
4. none of these

Question-53. The SI unit of force is

1. metre
2. newton
3. pascal
4. second

Question-54. The standard unit of force is

1. metre/second
2. newton
3. metre/second2
4. gram-weight

Question-55. A cart being carried by a horse is an example of

1. muscular force
2. mechanical force
3. gravitational force
4. electrostatic force

Question-56. A charged balloon attaches to a wall because of

1. Muscular force
2. Electrostatic force
3. Magnetic force
4. Gravitational force

Question-57. Earth always pulls everything towards it due to

1. muscular force
2. mechanical force
3. gravitational force
4. electrostatic force

Question-58. Pushing a rock from a hill top is an example of

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

Question-59. Which of the following is the action-at-distance force ?

1. muscular force
2. frictional force
3. magnetic force
4. mechanical force

Question-60. Magnetic force is

1. Non contact force
2. Contact force
3. Contact force and non contact force
4. None of the options

Question-61. Force acting on per unit area is called

1. non-contact forces
2. contact forces
3. force
4. pressure

Question-62. State of motion is described by

1. Position of rest
2. Position of motion
3. Both by the state of rest or motion
4. None of these

Question-63. A push or pull on an object is called

1. Pressure
2. Push-pull
3. Force
4. All of the above

Question-64. What is force?

1. Pull and push both
2. Pull
3. Push
4. None of the options

Question-65. Gravity is

1. Repulsive
2. Attraction + Repulsive force
3. Attractive force
4. Not a force

Question-66. If two forces act in the opposite directions on an object, the net force acting on it is the

1. Sum of the two forces
2. difference between the two forces
3. Multiplication of the two forces
4. Division of the two forces

Question-67. When a boy weighing 30 kgf sits at one end of a 4 m long see-sew, it gets depreessed at this en

1. The opposite end of the see-sew
2. 1.5 meter distance on the side of the boy
3. 1.5 meter distance on the side opposite to the boy.
4. The center of gravity of the whole system.

Question-68. When a body is stationary

1. There is no force acting on it
2. The forces acting on it are not in contact with it.
3. The combination of forces acting on it balance each other
4. The body is in vacuum

Question-69. A hockey player uses his hockey stick ?

1. To push the ball
2. To pull the ball
3. To change its direction
4. All of these

Question-70. Force is a

1. Vector quantity
2. Scalar quantity
3. Both (A) & (B)
4. None of these

Question-71. A spring balance is used for measuring

1. weight
2. speed
3. acceleration
4. mass

Question-72. A When does a body float on water?

1. When no force is acting on it.
2. When the net force acting on the body is zero
3. When there is a gravitational pull.
4. When there is friction between the body and the water

Question-73. A Pressure Of 10 KPa Acts On An Area Of 0.3 M2. The Force Acting On The Area Will Be

1. 3000 N
2. 30 N
3. 3 N
4. 300 N

Question-74. How may dynes are equal to 1 N ?

1. 106
2. 104
3. 105
4. 103

Question-75. Force of friction always acts on moving objects and its direction shall be

1. On any direction
2. Along the direction of motion
3. Perpendicular to the direction of motion
4. Opposite to the direction of motion