Answer is:
Power
Explanation:
Power is the rate of doing work or workdone per unit time. In S.I. system of units, the unit of power is watt (briefly written as W) which is equal to 1 N-m/s or 1 J/s.
Generally a bigger unit of power called kilowatt (briefly written as kW) is used which is equal to 1000 W.
Answer is:
Barometer
Explanation:
Atmospheric pressure: The atmospheric air exerts a normal pressure upon all surfaces with which it is in contact and it is known as atmospheric pressure. Atmospheric pressure is also known as barometric pressure. Barometer is used to measure atmospheric pressure.