Work, Energy and power
ICSE · Class 10 · Physics
Quick revision notes for Work, Energy and power — ICSE Class 10 Physics. Key concepts, formulas, and definitions for last-minute revision.
Key Topics to Revise
Work and Its Measurement
- Work is done only when a body is displaced under the influence of an applied force
- If there is no displacement, no work is done (e.g., pushing a wall, holding a bucket)
- Work is a scalar quantity with magnitude but no direction
Power and Its Units
- Power is the rate of doing work or energy transfer per unit time
- Greater power means same work is done in less time
- Power depends on both work done and time taken
Energy and Its Forms
- Energy is the capacity to do work
- Energy can exist in various forms but total energy is conserved
- Mechanical energy consists of kinetic and potential energy
Kinetic Energy
- Energy possessed by a body due to its motion
- Depends on mass and square of velocity
- Doubling velocity increases KE by four times
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What are the important topics in Work, Energy and power for ICSE Class 10 Physics?
Work, Energy and power covers several key topics that are frequently asked in ICSE Class 10 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
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