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15 questions
What are you exerting when you push/pull?
Matter
Motion
Force
Mass
Friction helps us slip
True
False
Cannot be determined
The capacity to do work is called
Force
Food
Energy
Friction
If Reema is able to move a table, then ____ is said to be done
To do work, we need
Water
Energy
Food
Muscles
Which of the following requires more energy?
Woman using vacuum cleaner
Girl standing
Man bending metal piece
Boy cooking
When we throw a ball in air, it falls back. The force responsible for this is
Frictional Force
Muscular Force
Gravitational Force
None of these
A football kicked by Arun rolls on the ground to some distance and stops. The force which stops the ball is
Mechanical Force
Solar Energy
Tidal Energy
Frictional Force
The ultimate source of energy is
Food
Sun
Plants
Water
Meena pushed a heavy table but failed to move it. Which of the following is true about the statement?
Energy is spent and work is done
Energy is not spent but work is done
Energy is spent but work is not done
None of the above
Which of the following statements about friction are false?
Friction makes a moving object slow down
Friction produces heat
Friction moves an object
Friction doesn't let us walk
X enables us to do work. X has many forms. What is X?
Work is done when you
Move a chair
Kick a football
Push a door
All of the above
Which form of energy can be obtained from Sun:
i - Light Energy
ii - Heat Energy
iii - Sound Energy
Only i and ii
Only ii and iii
Only ii
Only i, ii and iii
Work is said to be done when you sit on a chair for 3 minutes
False
True
Cannot be determined
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