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Class 9 Physics · Chapter 3 · Test 6

Board Test — Dynamics

23 MCQs • Final chapter revision covering textbook concepts, laws, definitions, and numerical problems from your supplied Class 9 Physics Chapter 3 text. Questions are restricted to the supplied material; this is a board-style practice test, not a claim that every question is reproduced verbatim from the textbook exercise.

MCQs

23 questions · 20 min · 23 marks

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Sample questions

The first 5 of 23. Try each one, then tap to see the answer.

  1. Question 1

    Which of the following is a non-contact force?

    • AFriction
    • BAir resistance
    • CElectrostatic force
    • DTension in a string
    Show answer

    Answer: C

    The supplied exercise identifies electrostatic force as a non-contact force.

  2. Question 2

    Which kind of change can a force produce in motion?

    • AChange in speed or direction of velocity
    • BChange only in mass
    • CChange only in temperature
    • DChange only in volume
    Show answer

    Answer: A

    The chapter explains that force can change the magnitude or direction of velocity.

  3. Question 3

    Which force acts perpendicular and outward from a surface?

    • ATension
    • BNormal force
    • CMagnetic force
    • DGravitational force
    Show answer

    Answer: B

    The chapter describes the normal or support force as perpendicular to the surface.

  4. Question 4

    What is Newton's first law also called in the chapter?

    • ALaw of inertia
    • BLaw of gravitation
    • CLaw of conservation of energy
    • DLaw of terminal velocity
    Show answer

    Answer: A

    The supplied text identifies Newton's first law as the law of inertia.

  5. Question 5

    Which relationship connects net force mass and acceleration?

    • AF = ma
    • Bp = mv
    • CW = mg
    • DF = Gm1m2/r^2
    Show answer

    Answer: A

    The chapter gives F = ma for Newton's second law.

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