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9th CBSE
IMPORTANT
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Is momentum a scalar or vector quantity?

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Important Questions on Forces and Laws of Motion

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9th CBSE
IMPORTANT
Essentials of PHYSICS Class IX>Chapter 2 - Forces and Laws of Motion>Assignment>Q 13
Name the physical quantity which changes the shape of a ball.
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9th CBSE
IMPORTANT
Essentials of PHYSICS Class IX>Chapter 2 - Forces and Laws of Motion>Assignment>Q 14
Define balanced forces.
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9th CBSE
IMPORTANT
Essentials of PHYSICS Class IX>Chapter 2 - Forces and Laws of Motion>Assignment>Q 15
An unbalanced force is acting on a body. List two possible effects that will be caused in the motion of body.
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9th CBSE
IMPORTANT
Essentials of PHYSICS Class IX>Chapter 2 - Forces and Laws of Motion>Assignment>Q 16
Define momentum. Write its S.I. unit.
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9th CBSE
IMPORTANT
Essentials of PHYSICS Class IX>Chapter 2 - Forces and Laws of Motion>Assignment>Q 17

Velocity-time graph of a moving particle of mass 1 kg is shown in the figure.

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Is any force acting on the body? Justify your answer.

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9th CBSE
IMPORTANT
Essentials of PHYSICS Class IX>Chapter 2 - Forces and Laws of Motion>Assignment>Q 18
While riding on the bicycle, if we stop pedalling, why does the bicycle begin to slow down?
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9th CBSE
IMPORTANT
Essentials of PHYSICS Class IX>Chapter 2 - Forces and Laws of Motion>Assignment>Q 19
Why do we jerk wet clothes before spreading them on line?
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9th CBSE
IMPORTANT
Essentials of PHYSICS Class IX>Chapter 2 - Forces and Laws of Motion>Assignment>Q 20
(a) Why does the rider fall in the forward direction when a running horse stops suddenly?