EASY
9th CBSE
IMPORTANT
Earn 100

Explain why it is dangerous to jump out of a moving bus?

Important Questions on Test Papers 1

EASY
9th CBSE
IMPORTANT
LIVING SCIENCE PHYSICS 9>Chapter 8 - Test Papers 1>TEST PAPERS>Q B
Two balls of the same size but of different materials, rubber and iron are kept on the smooth floor of a moving train. The brakes are applied suddenly to stop the train. Will the balls start rolling? If so, in which direction? Will they move with the same speed? Give reasons of your answer?
MEDIUM
9th CBSE
IMPORTANT
LIVING SCIENCE PHYSICS 9>Chapter 8 - Test Papers 1>TEST PAPERS>Q B

State whether the following situation is possible or not and give an example for the case.

An object with a constant acceleration but with zero velocity.

MEDIUM
9th CBSE
IMPORTANT
LIVING SCIENCE PHYSICS 9>Chapter 8 - Test Papers 1>TEST PAPERS>Q B

State whether the following situation is possible or not and give an example for the case.

An object moving in a certain direction with acceleration in the perpendicular direction.

HARD
9th CBSE
IMPORTANT
LIVING SCIENCE PHYSICS 9>Chapter 8 - Test Papers 1>TEST PAPERS>Q B
How can Newton's first law be deduced from second law?
MEDIUM
9th CBSE
IMPORTANT
LIVING SCIENCE PHYSICS 9>Chapter 8 - Test Papers 1>TEST PAPERS>Q B
How will the equations of motion for an object moving with a uniform velocity change?
MEDIUM
9th CBSE
IMPORTANT
LIVING SCIENCE PHYSICS 9>Chapter 8 - Test Papers 1>TEST PAPERS>Q C
A bus is moving at a speed of 18 km/h. It is retarding at a rate of 2 m/s2 and comes to rest finally. Find the distance travelled by it.
EASY
9th CBSE
IMPORTANT
LIVING SCIENCE PHYSICS 9>Chapter 8 - Test Papers 1>TEST PAPERS>Q C
A water sprinkler used to irrigate grass lawns begins to rotate as soon as the water is supplied. Explain the principle on which it works.  
MEDIUM
9th CBSE
IMPORTANT
LIVING SCIENCE PHYSICS 9>Chapter 8 - Test Papers 1>TEST PAPERS>Q C
What is inertia? What gives the measure of inertia? Explain with example.