The SI unit of work is

Important Questions on Work and Energy

EASY

9th CBSE

IMPORTANT

LIVING SCIENCE PHYSICS 9>Chapter 5 - Work and Energy>Check Your Progress>Q 4

A porter holds a load of  $500 \mathrm{N}$ for $10 \text{seconds}$. The work done by him is

MEDIUM

9th CBSE

IMPORTANT

LIVING SCIENCE PHYSICS 9>Chapter 5 - Work and Energy>Check Your Progress>Q 5

In which of the following activities, work is said to be done?

EASY

9th CBSE

IMPORTANT

LIVING SCIENCE PHYSICS 9>Chapter 5 - Work and Energy>Check Your Progress>Q 6

When the force applied on a body is increased, the work done on it

EASY

9th CBSE

IMPORTANT

LIVING SCIENCE PHYSICS 9>Chapter 5 - Work and Energy>Check Your Progress>Q 7

The amount $1 \mathrm{J}$ is equivalent to

EASY

9th CBSE

IMPORTANT

LIVING SCIENCE PHYSICS 9>Chapter 5 - Work and Energy>Check Your Progress>Q 8

Work done in lifting a body is calculated by 

EASY

9th CBSE

IMPORTANT

LIVING SCIENCE PHYSICS 9>Chapter 5 - Work and Energy>Check Your Progress>Q 9

No work is done by a man pushing a wall because

EASY

9th CBSE

IMPORTANT

LIVING SCIENCE PHYSICS 9>Chapter 5 - Work and Energy>Check Your Progress>Q 10

What are the factors on which amount of work done depends? 

EASY

9th CBSE

IMPORTANT

LIVING SCIENCE PHYSICS 9>Chapter 5 - Work and Energy>Check Your Progress>Q 11

Calculate the work done in pushing a cart through a distance of $50 \mathrm{m}$ against the force of friction which is equal to $100 \mathrm{N}$.