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12 questions
A force that tries to stop a moving object is known as?
Gravitational force
Force of friction
Mechanical force
Electrical force
Ability to do work is known as?
Energy
Work
Force
Machine
The energy used to turn the blades of a windmill is called_____________
solar energy
water energy
wind energy
muscular energy
Identify whether work is done or not in the picture
Yes
No
A push or pull that acts on an object is called
Work
Force
Energy
Momentum
Identify the simple machine
Wheel and axle
Lever
Pulley
Wedge
a man is pushing a table. Now the man is applying ____ on the table.
work
force
energy
muscles
When we throw a ball into air, it falls back. The force responsible for this is
muscular force.
gravitational force.
mechanical force
none of these
A football kicked by a boy rolls on the ground to some distance and stops. The force which stops the ball is
muscular force
gravitational force.
mechanical force.
frictional force.
Which of the following activities would need energy the most?
Riding a bicycle up a hill
Walking
Riding a bicycle on a level ground
Doing homework
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