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Physics — Stream SA

Mechanics, optics, heat, and basic electricity for Class 11 (Stream SA)

Key Concepts
  • Units, measurement and dimensional analysis
  • Kinematics and Newton's laws of motion
  • Work, energy and power; conservation laws
  • Basic thermal physics and the gas laws
Important Formulae
Equations of motion v = u + at; s = ut + ½at²
Newton's second law F = ma
Kinetic energy KE = ½mv²
Ideal gas law PV = nRT
Quick Tips
  • KVPY rewards reasoning — focus on understanding, not memorising.
  • Dimensional analysis quickly rules out wrong options.
Sample Practice Questions

  1. The formula for kinetic energy is:

    • mgh
    • ½mv²
    • mv
    • ma
    Show answer

    Answer: ½mv²

  2. Using v = u + at with u = 0, a = 2 m/s² and t = 3 s, find v.

    • 5 m/s
    • 6 m/s
    • 8 m/s
    • 2 m/s
    Show answer

    Answer: 6 m/s

  3. What is the SI unit of force?

    • joule
    • newton
    • watt
    • pascal
    Show answer

    Answer: newton

  4. The SI unit of power is the:

    • joule
    • newton
    • watt
    • volt
    Show answer

    Answer: watt

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Practice Questions

Practise KVPY questions on Physics — Stream SA. Answers are revealed after each question.

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Physics