EASY
9th CBSE
IMPORTANT
Earn 100

What is the SI unit of electrical energy?

Important Questions on Work and Energy

EASY
9th CBSE
IMPORTANT
LIVING SCIENCE PHYSICS 9>Chapter 5 - Work and Energy>Check Your Progress>Q 5

Name the quantity whose unit is 

a. kilowatt

b. kilowatt-hour

EASY
9th CBSE
IMPORTANT
LIVING SCIENCE PHYSICS 9>Chapter 5 - Work and Energy>Check Your Progress>Q 6
Name the two factors on which power depends.
EASY
9th CBSE
IMPORTANT
LIVING SCIENCE PHYSICS 9>Chapter 5 - Work and Energy>Check Your Progress>Q 7
Explain the concept of average power.
EASY
9th CBSE
IMPORTANT
LIVING SCIENCE PHYSICS 9>Chapter 5 - Work and Energy>Check Your Progress>Q 1
Who has more power, labourer A completing a given work in 3 hours or labourer B who completes the same work in 5 hours?
EASY
9th CBSE
IMPORTANT
LIVING SCIENCE PHYSICS 9>Chapter 5 - Work and Energy>Check Your Progress>Q 2
Power is a
EASY
9th CBSE
IMPORTANT
LIVING SCIENCE PHYSICS 9>Chapter 5 - Work and Energy>Check Your Progress>Q 3
1 hp is equivalent to
EASY
9th CBSE
IMPORTANT
LIVING SCIENCE PHYSICS 9>Chapter 5 - Work and Energy>Check Your Progress>Q 4
The commercial unit of energy is
EASY
9th CBSE
IMPORTANT
LIVING SCIENCE PHYSICS 9>Chapter 5 - Work and Energy>Check Your Progress>Q 5
1 kWh is equivalent to