What is solar energy?
Energy we get from earth
Energy we get from water
Energy we get from wind
Energy we get from sun
Why should energy sources be used carefully?
Because energy sources are in limited supply.
Because energy sources are present in abundance.
Because energy sources are renewable.
Because energy sources are present in unlimited supply.
Levers are classified in to:
Four
Five
Two
Three
Which is the man made thing used to move things?
Water
Air
Crane
Wind
Which is the natural force that move objects?
Light
Heat
Sound
Geothermal energy is called a renewable energy source because:
Heat is continuously produced by earth
Heat is continuously produced by fire
Heat is continuously produced by sun
Heat is continuously produced by humidity
The source of energy stored inside the earth is called:
Geothermal energy
Solar energy
Wind energy
Water energy
The force which pulls all the things towards the centre of the earth is called:
Mechanical force
Muscular force
Gravitational force
Frictional force
Which is built to trap water?
Dams
Canals
Well
Tank
In which of the following is force applied to overcome resistance?
Inclined plane
Lever
Wheel and axle
Pulley
