The energy which can not be replaced when once used up is
Renewable energy sources
Non- renewable energy sources
Wind energy
Solar energy
In solar energy, which device is used to transfer energy ?
Solar furnace
Solar panels
Solar cells
Solar power
The unit of pressure is
Newton
Joule
Pascal
Hertz
The percentage of the energy supplied to a device is called
Power
Work done
Fuels
Efficiency
At equilibrium, there is
Greater moment
Less moment
No net moment
Can not predict
Pressure depends on the
Density of the liquid
Mass of the liquid
Weight of the liquid
Position of the liquid ( vertical or horizondal )
The force acting on unit area is called
Pressure
Energy
Friction
The energy possessed by a body by virtue of its position is called
Kinetic energy
Potential energy
Chemical energy
A device which can turn about a point is called
Beam
Lever
Load
Effort
Food and fuels like oil, gas, coal etc are concentrated stores of
Electrical energy
