CBSE Class 9 Science Motion Quiz 2

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CBSE › Class 9 › Science › Motion

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1. A boy goes from A to B with a velocity of 20 m/min and comes back from B to A with a velocity of 30 m/min. The average velocity of the boy during the whole journey is

A 24 m/min B 25 m/s C Zero D 20 m/min

2. Velocity-time graph of an object is given below. The object has

A Uniform velocity B Uniform speed C Uniform retardation D Variable acceleration

3. A body is projected vertically upward from the ground. Taking vertical upward direction as positive and point of projection as origin, the sign of displacement of the body from the origin when it is at height h during upward and downward journey will be

A Positive, positive B Positive, negative C Negative, negative D Negative, positive

4. According to the given velocity-time graph, the object

A is moving with uniform velocity B has some initial velocity C is moving uniformly with some initial velocity D is at rest

5. The ratio of speed to the magnitude of velocity when the body is moving in one direction is

A Less than one B Greater than one C Equal to one D Greater than or equal to one

6. Which of the following situations is possible?

A An object can have acceleration, but constant velocity. B The velocity of an object may be zero but acceleration is not zero. C Distance and the magnitude of displacement are equal in circular motion. D Average speed and the magnitude of average velocity are always equal in circular motion.

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