Advertisements
Advertisements
Question
Name the quantity whose unit is :
(a) kilowatt
(b) kilowatt-hour
Advertisements
Solution
(a) Power is the quantity whose unit is kilowatt (kW).
(b) Energy is the quantity whose unit is kilowatt- hour (kWh).
APPEARS IN
RELATED QUESTIONS
Write true or false of the following statement.
Potential energy changes into kinetic energy when it is put to use
Fill in the blank
The ability to do work is called ______
Select the correct alternatives
When we rub our hands
What is energy?
Tick the most appropriate answer.
The force applied on a machine to do work is called the
Derive the relation between commercial unit of energy (kWh) and SI unit of energy (joule).
Observe the picture and put a tick (✓) if work is done and put a cross (x) if work is not done.
 |
 |
 |
 |
 |
 |
Running water possesses ______.
Write the type of energy.
A ball is dropped from a height of 10 m. If the energy of the ball reduces by 40% after striking the ground, how much high can the ball bounce back? (g = 10 m s–2)
