Recent

Show all results for ""

🎧 New: AI-Generated Podcasts Turn your study notes into engaging audio conversations. Learn more

Feature Overview

Ace your exams with our all-in-one platform for creating and sharing quizzes and tests.

Quizzes

Create quizzes and tests automatically from your content using AI.

Flashcards

Automatically turn your notes into digital flashcards.

Share, Export & Embed

Share with classmates or export to Excel and your learning management system.

Stats & Reporting

Auto-grading quizzes and tests with detailed stats and reports.

Mobile Apps

The smarter way to study – wherever you are.

Pricing

Search...

4 Questions

4 Views

Class 9 Work and Energy Quiz

Created by

@ExcitedSynecdoche

Podcast Beta

Play an AI-generated podcast conversation about this lesson

Questions and Answers

Which of the following is a scalar quantity?

Velocity

Force

Acceleration

Work (correct)

When is the work done by a force positive?

When the force is perpendicular to the displacement

When the force is applied in the opposite direction of the displacement

When the force is applied in the same direction as the displacement (correct)

When the force is applied at an angle of 45 degrees to the displacement

What is the unit of measurement for work?

Pascal

Newton

Joule (correct)

Watt

Which factor does not affect the kinetic energy of an object?

<p>Height above the ground</p> Signup and view all the answers

Study Notes

Scalar and Vector Quantities

Temperature is a scalar quantity.
Time, mass, and density are also scalar quantities.

Work and Energy

Work done by a force is positive when the force and displacement are in the same direction.
The unit of measurement for work is the joule (J).
Work is a scalar quantity.

Kinetic Energy

The kinetic energy of an object is not affected by the shape of the object.

Studying That Suits You

Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

Description

Test your knowledge on work and energy with this quiz. Answer questions about scalar quantities, positive work done by a force, factors affecting kinetic energy, and units of measurement for work.