Class 8 Force And Pressure CBSE Questions & Answers

Class 8 · Force And Pressure

This is Science Class 8 Force and Pressure CBSE Questions & Answers. There are 15 questions in this test with each question having around four answer choices.

Questions & Answers

1
A push or pull on an object is called
  • A
    Pressure
  • B
    Gravitation
  • C
    Push-pull
  • D
    Force
    Correct
2
The motion imparted to objects is due to the
  • A
    Action of pressure
  • B
    Action of force
    Correct
  • C
    Action of gravity
  • D
    Action of weight
3
S.I. unit of force is
  • A
    Joule
  • B
    Pascal
  • C
    Watt
  • D
    Newton
    Correct
4
In game of tug-of war, two teams
  • A
    Pull the rope in opposite direction
    Correct
  • B
    Push the rope in opposite direction
  • C
    Pull the rope tied with tree
  • D
    Pull the rope in same direction
5
Perpendicular force acting per unit area is called is called
  • A
    Energy
  • B
    Thrust
    Correct
  • C
    Work
  • D
    Power
6
If the direction and magnitude of the applied force changes, its effect
  • A
    Always increases
  • B
    Do not change
  • C
    Also change
    Correct
  • D
    Always decreases
7
S.I. unit of pressure is
  • A
    Celsius
  • B
    Pascal
    Correct
  • C
    Newton
  • D
    Kelvin
8
The net force on an object is __________ if the two forces acting on it in opposite directions are equal.
  • A
    Always more
  • B
    Zero
    Correct
  • C
    Towards right
  • D
    Towards left
9
An interaction of one object with another object ________ between the two objects.
  • A
    Results in a work
  • B
    Results in a pressure
  • C
    All of the above
  • D
    Results in a force
    Correct
10
A force applied on an object may change its
  • A
    Mass
  • B
    Speed
    Correct
  • C
    Weight
  • D
    Colour
11
Force applied on an object in same direction
  • A
    Divide on another
  • B
    Subtract to one another
  • C
    Add to one another
    Correct
  • D
    Multiply on another
12
The strength of a force is usually expressed by its
  • A
    Direction
  • B
    Altitude
  • C
    Magnitude
    Correct
  • D
    Duration
13
The state of rest is considered to be the
  • A
    State of complete rest
  • B
    State of super speed
  • C
    State of very slow speed
  • D
    State of zero speed
    Correct
14
Which change always occurs when force is applied
  • A
    Change in direction
  • B
    Change in shape
  • C
    Change in state
  • D
    Change in state of motion
    Correct
15
Which force enables us to perform all activities involving movement or bending of our body?
  • A
    Muscular force
    Correct
  • B
    Frictional force
  • C
    Magnetic force
  • D
    Electrostatic force