E M B I B E

All In One SCIENCE CBSE Class IX>Chapter 8 - Motion>CHAPTER EXERCISE>Q 2

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IMPORTANT

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When two bodies moves uniformly towards each other, then they cross each other at the speed of $10 m s^{- 1}$ . If both the bodies move in the same direction, then they cross each other at the speed of $6 m s^{- 1}$ . The speed of both bodies are :

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Important Questions on Motion

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9th CBSE

IMPORTANT

All In One SCIENCE CBSE Class IX>Chapter 8 - Motion>CHAPTER EXERCISE>Q 3

If a body is moving on a circular path of radius

21 m

with velocity of

2 m s^{- 1}

, then time taken by the body to complete half revolution is :

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IMPORTANT

All In One SCIENCE CBSE Class IX>Chapter 8 - Motion>CHAPTER EXERCISE>Q 4

From the given

v - t

graph (see figure), it can be inferred that the object is :
Question Image

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IMPORTANT

All In One SCIENCE CBSE Class IX>Chapter 8 - Motion>CHAPTER EXERCISE>Q 5

Suppose a boy is enjoying a ride on a merry-go-round which is moving with a constant speed of

10 {m s}^{- 1}

. It implies that the boy is :

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All In One SCIENCE CBSE Class IX>Chapter 8 - Motion>CHAPTER EXERCISE>Q 6

Assertion: Distance travelled by a body may be positive, negative or zero.
Reason: Shortest distance travelled by the body between two points is called distance.

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All In One SCIENCE CBSE Class IX>Chapter 8 - Motion>CHAPTER EXERCISE>Q 7

Assertion: Acceleration of a body can be calculated from velocity-time graph.
Reason: Area of velocity-time graph gives distance travelled by the body.

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All In One SCIENCE CBSE Class IX>Chapter 8 - Motion>CHAPTER EXERCISE>Q 8

Assertion: A body performing uniform circular motion with constant speed may have acceleration.
Reason: When speed of a body remains constant, then its acceleration is always zero.

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All In One SCIENCE CBSE Class IX>Chapter 8 - Motion>CHAPTER EXERCISE>Q 9

If the acceleration of the particle is constant in magnitude but not in direction, then what type of path does the particle follow?

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IMPORTANT

All In One SCIENCE CBSE Class IX>Chapter 8 - Motion>CHAPTER EXERCISE>Q 10

What does the path of an object look like when it is in uniform motion?