EASY
9th CBSE
IMPORTANT
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If the initial velocity of a body moving with constant acceleration is zero, we have v=-at.

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Important Questions on Motion

MEDIUM
9th CBSE
IMPORTANT
Modern's abc+ Of Science - Physics For Class IX>Chapter 1 - Motion>Formative Assessment>Q 7
The average velocity for a body moving in one direction with constant acceleration is vav=u+v2.
MEDIUM
9th CBSE
IMPORTANT
Modern's abc+ Of Science - Physics For Class IX>Chapter 1 - Motion>Formative Assessment>Q 8
When a body is accelerating, its speed decreases.
EASY
9th CBSE
IMPORTANT
Modern's abc+ Of Science - Physics For Class IX>Chapter 1 - Motion>Formative Assessment>Q 9
When a body is moving with constant speed in a circular path, its acceleration is zero.
EASY
9th CBSE
IMPORTANT
Modern's abc+ Of Science - Physics For Class IX>Chapter 1 - Motion>Formative Assessment>Q 10
The slope of distance-time graph can be negative.
EASY
9th CBSE
IMPORTANT
Modern's abc+ Of Science - Physics For Class IX>Chapter 1 - Motion>Formative Assessment>Q 11
The slope of displacement-time graph gives instantaneous velocity.
EASY
9th CBSE
IMPORTANT
Modern's abc+ Of Science - Physics For Class IX>Chapter 1 - Motion>Formative Assessment>Q 12
The area under the speed-time graph gives instantaneous velocity.
EASY
9th CBSE
IMPORTANT
Modern's abc+ Of Science - Physics For Class IX>Chapter 1 - Motion>Formative Assessment>Q 13
The SI unit of retardation is (-m s-2).
EASY
9th CBSE
IMPORTANT
Modern's abc+ Of Science - Physics For Class IX>Chapter 1 - Motion>Formative Assessment>Q 14
If acceleration is zero, velocity must be zero.