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Important Questions

Work, Energy and power

ICSE · Class 10 · Physics

Most important questions from Work, Energy and power for ICSE Class 10 Physics board exam 2026. MCQs, short answer, and long answer questions with marks.

45 questions24 flashcards5 concepts

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An illustration showing a block being pulled by a constant force F at an angle theta to the horizontal displacement S, with the formula W = F ⋅ S = FS cosθ.
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45 Questions·
multiple choicemultiple correcttrue falsetext answermatchingordering

Sample Questions

1multiple correct

Which of the following are examples of kinetic energy?

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A moving car, A bullet fired from a gun, A rolling ball

Kinetic energy is possessed by objects in motion. A moving car, bullet fired from gun, and rolling ball all have kinetic energy. A book on shelf has potential energy due to height, and stretched rubber band has elastic potential energy.

2true false

The formula for kinetic energy is KE = ½mv².

Show answer

True

The formula for kinetic energy is indeed KE = ½mv², where m is mass and v is velocity of the object. This formula shows that kinetic energy depends on both mass and square of velocity.

3multiple correct

Which forms of energy are types of mechanical energy?

Show answer

Kinetic energy, Potential energy

Mechanical energy consists of only two types: kinetic energy (due to motion) and potential energy (due to position or configuration). Heat, light, and chemical energy are other forms of energy.

4multiple choice

When does work done become negative?

Show answer

When force opposes displacement

Work done is negative when force opposes displacement (θ = 180°). Examples include friction force and gravitational force on upward motion. When θ = 90°, work is zero, and when displacement is zero, work is also zero.

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Frequently Asked Questions

What are the important topics in Work, Energy and power for ICSE Class 10 Physics?
Key topics in Work, Energy and power include Complete Chapter Concept Hierarchy – Work, Energy and Power, Work, Energy and Power — Complete Concept Map, Work, Energy and Power — Complete Concept Map. These are the concepts ICSE Class 10 examiners draw on most — study them first, then practise related questions.
How to score full marks in Work, Energy and power — ICSE Class 10 Physics?
Understand the core concepts first, then work through the 45 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.
How many important questions are there in Work, Energy and power?
There are 45 practice questions available for Work, Energy and power. These cover multiple question types including MCQs, short answer, and long answer questions.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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