Class 9 · ICSE · Physics

Laws of Motion

Newton's laws of motion, inertia, momentum, gravitation and free fall.

Questions: 13
PYQs: 0
Topics: 0

Syllabus mapping: ICSE syllabus (CISCE)

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13 questions in this chapter.

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Class 9 · Physics · Laws of Motion
Distinguish between mass and weight.
3 marksMediumShort answer
Answer available
Class 9 · Physics · Laws of Motion
The mass of a body is 12 kg. Find its weight on the earth and on the moon, where g is one-sixth of its value on the earth. Take g = 10 m s⁻² on the earth.
3 marksMediumNumerical
Answer available
Class 9 · Physics · Laws of Motion
What is meant by free fall, and why does a feather fall more slowly than a stone in air but at the same rate in a vacuum?
3 marksMediumShort answer
Answer available
Class 9 · Physics · Laws of Motion
A body of mass 4 kg moves with a velocity of 6 m s⁻¹. Find its momentum.
3 marksMediumNumerical
Answer available
Class 9 · Physics · Laws of Motion
Why does a passenger in a bus lurch forward when the bus stops suddenly?
3 marksMediumApplication based
Answer available
Class 9 · Physics · Laws of Motion
A force acting on a body of mass 500 g changes its velocity from 4 m s⁻¹ to 10 m s⁻¹ in 3 s. Find the force.
3 marksMediumNumerical
Answer available
Class 9 · Physics · Laws of Motion
State Newton's first law of motion and explain what it tells us about force.
2 marksEasyShort answer
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Class 9 · Physics · Laws of Motion
State Newton's law of universal gravitation.
3 marksMediumShort answer
Answer available
Class 9 · Physics · Laws of Motion
State the three kinds of inertia with one example of each.
3 marksMediumShort answer
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Class 9 · Physics · Laws of Motion
State Newton's third law of motion and give two examples of it.
3 marksMediumShort answer
Answer available
Class 9 · Physics · Laws of Motion
A force of 10 N acts on a body of mass 5 kg. Find the acceleration produced.
3 marksMediumNumerical
Answer available
Class 9 · Physics · Laws of Motion
A body of mass 2 kg moves with a velocity of 5 m s⁻¹. Calculate its momentum and its kinetic energy.
3 marksMediumNumerical

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