MEDIUM
9th CBSE
IMPORTANT
Earn 100

What type of forces—balanced or unbalanced—act on a rubber ball when we press it between our hands? What effect is produced in the ball?

Important Questions on Force and Laws of Motion

MEDIUM
9th CBSE
IMPORTANT
Physics For Class 9>Chapter 2 - Force and Laws of Motion>Exercise>Q 5
What happens to the passengers travelling in a bus when the bus takes a sharp turn? Give reasons for your answer.
EASY
9th CBSE
IMPORTANT
Physics For Class 9>Chapter 2 - Force and Laws of Motion>Exercise>Q 1
Calculate the momentum of a man of mass 75 kg when he walks with a uniform velocity of 2 m s-1.
EASY
9th CBSE
IMPORTANT
Physics For Class 9>Chapter 2 - Force and Laws of Motion>Exercise>Q 2
A body of mass 25 kg has a momentum of 125 kg m s-1. Calculate the velocity of the body.
EASY
9th CBSE
IMPORTANT
Physics For Class 9>Chapter 2 - Force and Laws of Motion>Exercise>Q 3
Calculate the momentum of a toy car of mass 200 g moving with a speed of 5 m s-1.
EASY
9th CBSE
IMPORTANT
Physics For Class 9>Chapter 2 - Force and Laws of Motion>Exercise>Q 5
Calculate the momentum of the following:
An elephant of mass 2000 kg moving at 5 m/s.
Question Image
EASY
9th CBSE
IMPORTANT
Physics For Class 9>Chapter 2 - Force and Laws of Motion>Exercise>Q 5
Calculate the momentum of the following:
A bullet of mass 0.02 kg moving at 400 m/s.
Question Image
EASY
9th CBSE
IMPORTANT
Physics For Class 9>Chapter 2 - Force and Laws of Motion>Exercise>Q 1
A plastic ball and a clay ball of equal masses, travelling in the same direction with equal speeds, strike against a vertical wall. From which ball does the wall receive a greater amount of momentum?
MEDIUM
9th CBSE
IMPORTANT
Physics For Class 9>Chapter 2 - Force and Laws of Motion>Exercise>Q 2
A car is moving on a level road. If the driver turns off the engine of the car, the car’s speed decreases gradually and ultimately it comes to a stop. A student says that two forces act on the car which brings it to a stop. What could these forces be? Which of these two forces contributes more to slow down and stop the car?