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9th CBSE
IMPORTANT
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The velocity-time graph of a body has a negative slope. The body is undergoing 

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Important Questions on Motion

MEDIUM
9th CBSE
IMPORTANT
Physics>Chapter 1 - Motion>PERIODIC TEST>Q 10

In which of the following graphs, the speed is increasing?

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9th CBSE
IMPORTANT
Physics>Chapter 1 - Motion>PERIODIC TEST>Q (a)
A person travelling in a train is at absolute rest. 
MEDIUM
9th CBSE
IMPORTANT
Physics>Chapter 1 - Motion>PERIODIC TEST>Q (b)
Velocity is a vector quantity.
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9th CBSE
IMPORTANT
Physics>Chapter 1 - Motion>PERIODIC TEST>Q (c)

The displacement of a body moving along the OX axis from left to right is negative. 

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9th CBSE
IMPORTANT
Physics>Chapter 1 - Motion>PERIODIC TEST>Q (d)
When a moving body makes a round trip and returns back to its initial position, its displacement is zero. 
MEDIUM
9th CBSE
IMPORTANT
Physics>Chapter 1 - Motion>PERIODIC TEST>Q (e)
A rubber ball dropped from a certain height is an example of nonuniform motion. 
MEDIUM
9th CBSE
IMPORTANT
Physics>Chapter 1 - Motion>PERIODIC TEST>Q (f)
When a body moves in a straight line in a particular direction its acceleration is due to a change in its speed. 
EASY
9th CBSE
IMPORTANT
Physics>Chapter 1 - Motion>PERIODIC TEST>Q (g)
The unit of acceleration is metre per second.