Olympiad – Class VIII – Science - Phy - Force and Pressure

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Question - 1

Which of the following actions describe pushing force?

  • A Kicking
  • B Lifting
  • C Picking
  • D Opening

Question - 2

Which of the following is NOT a force?

  • A Muscular
  • B Magnetic
  • C Chemical
  • D Electric

Question - 3

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.

Question - 4

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.

Question - 5

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

Question - 6

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

Question - 7

Which of the following is a non-contact force?

  • A Muscular force
  • B Electrostatic force
  • C Elastic spring force
  • D Frictional force

Question - 8

What causes the atmospheric pressure?

  • A The sky above our head
  • B The air surrounding the earth
  • C The gravitational force of the sun and other planets
  • D The mass of the earth

Question - 9

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

Question - 10

What is thrust equal to?

  • A orcex area
  • B Force/area
  • C Pressure
  • D Pressurex area