Phy – Chapter 5: Work, Energy and Power

SSC-I (9th) · Physics · Afaq Sun

Test your understanding of Work, Energy and Power with 22 syllabus-aligned MCQs designed for SSC-I (9th) Afaq Sun students.

Use this short practice session to revise key concepts, identify weak areas, and prepare for your board examination.

Sample Questions

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Chapter 5: Work, Energy and Power Work: Definition of work, W = Fd cos(theta), Unit joule, Positive, negative and zero work, Work from graph | Energy: Kinetic energy, Potential energy, Other forms of energy, Work-energy relation | Conservation of Energy: Law of conservation of energy, Energy transformations, Pendulum and falling body, Energy losses | Sources of Energy: Fossil fuel energy, Hydroelectric, Solar, Geothermal, Wind, Nuclear, Tidal and wave, Biofuel | Impact of Various Energy Sources: Economic impact, Social impact, Environmental impact, Fossil fuels, nuclear, hydro, solar and wind compared | Advantages and Disadvantages of Energy Sources: Hydroelectric, Solar, Wind, Fossil fuels, Nuclear, Geothermal, Biofuel | Power: Definition, P = W/t, Unit watt, Horsepower, P = Fv | Efficiency: Efficiency formula, Wasted energy, Why 100% efficiency is impossible, Improving efficiency

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SSC-I (9th) Physics Afaq Sun Series Chapter 5: Work, Energy and Power

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