EASY
9th CBSE
IMPORTANT
Earn 100

What does the speedometer of a vehicle measure?

Important Questions on Motion

EASY
9th CBSE
IMPORTANT
Modern's abc+ Of Science - Physics For Class IX>Chapter 1 - Motion>Summative Assessment>Q 19

Define velocity.

EASY
9th CBSE
IMPORTANT
Modern's abc+ Of Science - Physics For Class IX>Chapter 1 - Motion>Summative Assessment>Q 20

What is the SI unit of velocity?

EASY
9th CBSE
IMPORTANT
Modern's abc+ Of Science - Physics For Class IX>Chapter 1 - Motion>Summative Assessment>Q 21

Define acceleration.

EASY
9th CBSE
IMPORTANT
Modern's abc+ Of Science - Physics For Class IX>Chapter 1 - Motion>Summative Assessment>Q 22

What is the SI unit of acceleration?

MEDIUM
9th CBSE
IMPORTANT
Modern's abc+ Of Science - Physics For Class IX>Chapter 1 - Motion>Summative Assessment>Q 23
What do we mean by saying that the acceleration of a body is 3 m s-2?
EASY
9th CBSE
IMPORTANT
Modern's abc+ Of Science - Physics For Class IX>Chapter 1 - Motion>Summative Assessment>Q 24

When do we say that a body is retarding or decelerating?

MEDIUM
9th CBSE
IMPORTANT
Modern's abc+ Of Science - Physics For Class IX>Chapter 1 - Motion>Summative Assessment>Q 1

What is the difference between average speed and instantaneous speed?

EASY
9th CBSE
IMPORTANT
Modern's abc+ Of Science - Physics For Class IX>Chapter 1 - Motion>Summative Assessment>Q 2

Can average speed and instantaneous speed be equal? Explain.