Work and Energy

1. Work is done during

• swimming

• reading a book

• sleeping

• holding a heavy object but not moving

work is not done during

• running

• studying

• walking

• playing cricket

the energy obtained from the rays of the sun is called

• electrical energy

• sound energy

• solar energy

• wind energy

Tags

NGSS.MS-LS1-6

the energy sources that are present in limited amount are

• Renewable

• Non-renewable

• hydro energy

• both a and b

Example of non-renewable sources of energy

• water

• air

• coal

• none of these

Example of renewable sources of energy

• Natural gas

• Petroleum

• wind energy

• Both a and b

Energy giving food is

• Rice

• Butter

• sugar

• All of these

Tags

NGSS.MS-LS1-7

The water stored at a height behind a dam in a reservoir has

• Heat energy

• Mechanical energy

• Wind energy

• Solar energy

Tags

NGSS.MS-PS3-2

The energy produced when an object vibrates is

• Light energy

• Heat energy

• Sound energy

• wind energy

Tags

NGSS.MS-PS4-1

The energy present in moving air is

• sound energy

• light energy

• solar energy

• Wind energy