Class 04 EVS Work Force And Energy CBSE Questions & Answers

Class 4 · EVS Work Force And Energy

This is Science and Social Science (EVS) class 04 EVS Work Force and Energy CBSE Questions & Answers. There are 15 questions in this test with each question having around four answer choices.

Questions & Answers

1
Force applied by the muscles of the body is called
  • A
    Muscular force
    Correct
  • B
    Magnetic force
  • C
    Contact force
  • D
    Frictional force
2
This is the same as an inclined plane
  • A
    Pulley
  • B
    Swing
  • C
    Wheel
  • D
    Ramp
    Correct
3
Energy consumed is measured by using
  • A
    Hydrometer
  • B
    Thermometer
  • C
    Electricity meter
    Correct
  • D
    Lactometer
4
A ball lying on ground starts moving when pushed by legs. This is due to application of
  • A
    Force
    Correct
  • B
    Gravity
  • C
    Mass
  • D
    Heat
5
The sole of shoes have grooves to
Question 5 figure 1
  • A
    Increase friction
    Correct
  • B
    Decrease friction
  • C
    Decrease force
  • D
    Increase power
6
Which of the following device convert heat energy to kinetic energy?
  • A
    Battery
  • B
    Radio
  • C
    Electric iron
  • D
    Steam engine
    Correct
7
A rod attached to the center of a wheel is called
  • A
    Magnet
  • B
    Pulley
  • C
    An axle
    Correct
  • D
    Top
8
The force of earth that pulls everything towards itself is called
  • A
    Magnetic force
  • B
    Frictional force
  • C
    Gravitational force
    Correct
  • D
    Muscular force
9
Energy can neither be created nor destroyed is called law of
  • A
    Conservation of mass
  • B
    Conservation of energy
    Correct
  • C
    Conservation of heat
  • D
    Conservation of power
10
In battery or cell energy is stored in form of
  • A
    Chemical
    Correct
  • B
    Electricity
  • C
    Electron
  • D
    Positron
11
Horse power is a popular unit of
  • A
    Work
  • B
    Power
    Correct
  • C
    Weight
  • D
    Energy
12
When you pedal your bicycle, the cycle moves. The applied is
  • A
    Gravitational force
  • B
    Muscular force
    Correct
  • C
    Frictional force
  • D
    Magnetic force
13
When the displacement of the body is perpendicular to the direction of force
  • A
    More work is done
  • B
    Negative work is done
  • C
    No work is done
    Correct
  • D
    Less work is done
14
Rate of doing work is called
  • A
    Energy
  • B
    Momentum
  • C
    Power
    Correct
  • D
    Capacity
15
To move your books away from you, you will have to
  • A
    Pull only
  • B
    Push or pull
  • C
    Push
    Correct
  • D
    Force on it