EASY
9th CBSE
IMPORTANT
Earn 100

Name the commercial unit of measurement of energy.

Important Questions on Work and Energy

EASY
9th CBSE
IMPORTANT
Science for Ninth Class Part 1 Physics>Chapter 4 - Work and Energy>Very Short Answer Type Questions>Q 2
Define kilowatt-hour.
EASY
9th CBSE
IMPORTANT
Science for Ninth Class Part 1 Physics>Chapter 4 - Work and Energy>Very Short Answer Type Questions>Q 3
Name two units of power bigger than watt.
EASY
9th CBSE
IMPORTANT
Science for Ninth Class Part 1 Physics>Chapter 4 - Work and Energy>Very Short Answer Type Questions>Q 4
Define the term ‘watt’.
EASY
9th CBSE
IMPORTANT
Science for Ninth Class Part 1 Physics>Chapter 4 - Work and Energy>Very Short Answer Type Questions>Q 5
How many watts equal one horsepower?
EASY
9th CBSE
IMPORTANT
Science for Ninth Class Part 1 Physics>Chapter 4 - Work and Energy>Very Short Answer Type Questions>Q 6
Name the physical quantity whose unit is watt.
EASY
9th CBSE
IMPORTANT
Science for Ninth Class Part 1 Physics>Chapter 4 - Work and Energy>Very Short Answer Type Questions>Q 7
What is the power of a body which is doing work at the rate of one joule per second?
EASY
9th CBSE
IMPORTANT
Science for Ninth Class Part 1 Physics>Chapter 4 - Work and Energy>Very Short Answer Type Questions>Q 8
A body does 1200 joules of work in 2 minutes. Calculate its power.
EASY
9th CBSE
IMPORTANT
Science for Ninth Class Part 1 Physics>Chapter 4 - Work and Energy>Very Short Answer Type Questions>Q 9
How many joules are there in one kilowatt-hour?