EASY
9th CBSE
IMPORTANT
Earn 100

Find the ratio of CGS to SI units of energy.

Important Questions on Work and Energy

EASY
9th CBSE
IMPORTANT
LIVING SCIENCE PHYSICS 9>Chapter 5 - Work and Energy>Exercises>Q A
Give the difference between kWh and kW.
EASY
9th CBSE
IMPORTANT
LIVING SCIENCE PHYSICS 9>Chapter 5 - Work and Energy>Exercises>Q A
What is the form of energy transformation in a microphone? 
EASY
9th CBSE
IMPORTANT
LIVING SCIENCE PHYSICS 9>Chapter 5 - Work and Energy>Exercises>Q A
Is it necessary for force to do work always?
EASY
9th CBSE
IMPORTANT
LIVING SCIENCE PHYSICS 9>Chapter 5 - Work and Energy>Exercises>Q A
When the speed of a body is increased five times, what is the change in its kinetic energy?
EASY
9th CBSE
IMPORTANT
LIVING SCIENCE PHYSICS 9>Chapter 5 - Work and Energy>Exercises>Q A
Why is it not possible to convert heat energy completely to mechanical energy?
EASY
9th CBSE
IMPORTANT
LIVING SCIENCE PHYSICS 9>Chapter 5 - Work and Energy>Exercises>Q A

Where does a pendulum have maximum 

a. potential energy and 

b. kinetic energy.

EASY
9th CBSE
IMPORTANT
LIVING SCIENCE PHYSICS 9>Chapter 5 - Work and Energy>Exercises>Q A
What is the work done on a body moving in a circular path?
EASY
9th CBSE
IMPORTANT
LIVING SCIENCE PHYSICS 9>Chapter 5 - Work and Energy>Exercises>Q B
Why does a nail become warmer when hammered into a plank?