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Physics (Motion, Light & Electricity)

Laws of motion, light refraction, electric circuits, sound waves, and basic thermodynamics

Sample Practice Questions

  1. What is the law of conservation of energy?

    • Energy is always kinetic
    • Energy can be destroyed only
    • Energy cannot be created or destroyed, only transformed
    • Energy is conserved only in closed systems
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    Answer: Energy cannot be created or destroyed, only transformed

  2. What is the critical angle?

    • Angle at which total internal reflection occurs
    • Angle of incidence for which angle of refraction is 90°
    • Maximum angle of refraction
    • Both A and B are correct
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    Answer: Angle of incidence for which angle of refraction is 90°

  3. Which type of wave is sound?

    • Transverse wave
    • Longitudinal wave
    • Electromagnetic wave
    • Seismic wave
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    Answer: Longitudinal wave

  4. Newton's first law of motion is also called?

    • Law of acceleration
    • Law of inertia
    • Law of action-reaction
    • Law of gravitation
    Show answer

    Answer: Law of inertia

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Practice Questions

Practise NSTSE questions on Physics (Motion, Light & Electricity). Answers are revealed after each question.

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