MEDIUM
9th CBSE
IMPORTANT
Earn 100

State Newton’s second law of motion in terms of change in momentum.

Important Questions on Force and Laws of Motion

EASY
9th CBSE
IMPORTANT
Physics For Class 9>Chapter 2 - Force and Laws of Motion>Exercise>Q 2
Explain the meaning of the equation in physics:
F=ma, where symbols have their usual meanings.
MEDIUM
9th CBSE
IMPORTANT
Physics For Class 9>Chapter 2 - Force and Laws of Motion>Exercise>Q 3
Mass of a body is doubled. What happens to its acceleration under a given force?
MEDIUM
9th CBSE
IMPORTANT
Physics For Class 9>Chapter 2 - Force and Laws of Motion>Exercise>Q 4
Explain why a cricket player moves his hands backwards while catching a fast cricket ball?
MEDIUM
9th CBSE
IMPORTANT
Physics For Class 9>Chapter 2 - Force and Laws of Motion>Exercise>Q 5
Why road accidents at high speeds are more worse than accidents at low speeds?
MEDIUM
9th CBSE
IMPORTANT
Physics For Class 9>Chapter 2 - Force and Laws of Motion>Exercise>Q 6
Explain why a person is more likely to get hurt when falling on the cemented road?
MEDIUM
9th CBSE
IMPORTANT
Physics For Class 9>Chapter 2 - Force and Laws of Motion>Exercise>Q 7
A feather of mass 10 g is dropped from a height. It is found to fall down with a constant velocity. What is the net force acting on it?
MEDIUM
9th CBSE
IMPORTANT
Physics For Class 9>Chapter 2 - Force and Laws of Motion>Exercise>Q 8
State Newton’s third law of motion and give two examples to illustrate the law.
MEDIUM
9th CBSE
IMPORTANT
Physics For Class 9>Chapter 2 - Force and Laws of Motion>Exercise>Q 9
How are action-reaction forces related in magnitude and direction?