Force Work and Energy

Draw and example of a wedge

The capacity to do work is called ?

• force

• energy

• machine

• movement.

a man is pushing a table. Now the man is applying ____ on the table.

• work

• force

• energy

• muscles

If Ravi is able to move the table through a distance, then ____ is said to be done.

• work

• force

• energy

• muscles

To do work, we need

• force

• energy

• hands

• 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.

An electric heater converts

• heat energy to electrical energy.

• electrical energy to heat energy.

• light energy to electrical energy.

• electrical energy to muscular energy.

In a battery cell, energy is stored in the form of

• electrical energy.

• muscular energy

• chemical energy.

• solar energy

The given transformation takes place in - light to electrical energy

• electric bulb

• electric heater

• battery cell

• solar cell