Force work and energy

What is the force applied by the muscles of our body called ?

• Mechanical force

• Frictional force

• Muscular force

Which force helps us to to stop a moving ball ?

• Muscular force

• Gravitational force

• Frictional force

• Nuclear force

Ball thrown upwards falls down due to ?

• Frictional force

• Magnetic force

• Gravitational force

A ______ is used to hold the things.

True or False ?

Friction is the force that pulls the objects towards the earth..

How can we calculate the work done by a body ?

• ( force applied on the body ) × ( distance by which the body moves )

• There is no formula

• Weight of body ÷ force applied

What are the devices called that are used to make our work faster and easier ?

• Electronics

• Simple machines

• Solar devices