How is work done by a force measured?

Important Questions on Work and Energy

EASY

9th CBSE

IMPORTANT

Physics For Class 9>Chapter 4 - Work and Energy>Exercise>Q 6

Is a person doing any work by holding a suitcase?

EASY

9th CBSE

IMPORTANT

Physics For Class 9>Chapter 4 - Work and Energy>Exercise>Q 7

When you move upstairs, do you do some work?

MEDIUM

9th CBSE

IMPORTANT

Physics For Class 9>Chapter 4 - Work and Energy>Exercise>Q 8

What is the work done against gravity when a body is moved horizontally along a frictionless surface?

EASY

9th CBSE

IMPORTANT

Physics For Class 9>Chapter 4 - Work and Energy>Exercise>Q 9

What is the condition for a force to do work on an object?

EASY

9th CBSE

IMPORTANT

Physics For Class 9>Chapter 4 - Work and Energy>Exercise>Q 10

Define the term “energy” of a body. What is the unit of energy?

EASY

9th CBSE

IMPORTANT

Physics For Class 9>Chapter 4 - Work and Energy>Exercise>Q 11

Is energy a vector quantity?

EASY

9th CBSE

IMPORTANT

Physics For Class 9>Chapter 4 - Work and Energy>Exercise>Q 12

Name two forms of mechanical energy.

EASY

9th CBSE

IMPORTANT

Physics For Class 9>Chapter 4 - Work and Energy>Exercise>Q 13

Does the kinetic energy of a body depend on its direction of motion?