MEDIUM
9th CBSE
IMPORTANT
Earn 100

Since action-reaction forces are always equal in magnitude and opposite in direction, how can anything ever be accelerated?

Important Questions on Force and Laws of Motion

MEDIUM
9th CBSE
IMPORTANT
In a collision between a heavier body and a lighter body, which body experiences greater force? Which body undergoes the greater change in momentum? Also, which body is damaged more?
MEDIUM
9th CBSE
IMPORTANT
While flying, birds push the air downwards with their wings. Give reason.
EASY
9th CBSE
IMPORTANT
If a balloon is filled with air and its mouth untied, then air is released from its mouth in the downward direction. Write the other observations made by you. Justify your answer.
EASY
9th CBSE
IMPORTANT

William was having a gun-shoot session in a training camp. As soon as he shot a bullet, he fell backwards. Sanat started making fun of him, William stood up and explained the cause of this effect and told him not to laugh without understanding the scientific cause behind it.

Read the above passage and answer the following question:
What explanation did William give to Sanat?

EASY
9th CBSE
IMPORTANT

William was having a gun-shoot session in a training camp. As soon as he shot a bullet, he fell backwards. Sanat started making fun of him, William stood up and explained the cause of this effect and told him not to laugh without understanding the scientific cause behind it.

Read the above passage and answer the following question:
Compare and contrast the values of William and Sanat.

MEDIUM
9th CBSE
IMPORTANT

William was having a gun-shoot session in a training camp. As soon as he shot a bullet, he fell backwards. Sanat started making fun of him, William stood up and explained the cause of this effect and told him not to laugh without understanding the scientific cause behind it.

Read the above passage and answer the following question:
If you were in a place of Sanat, then how would you react to such a situation?

MEDIUM
9th CBSE
IMPORTANT
Why is it difficult to walk on a slippery road?
MEDIUM
9th CBSE
IMPORTANT
How will you prove Newton’s third law of motion experimentally?