MEDIUM
9th ICSE
IMPORTANT
Earn 100

Give an example of inertia of motion.

Important Questions on Laws of Motion

MEDIUM
9th ICSE
IMPORTANT
Concise Physics I.C.S.E Part I For Class 9>Chapter 3 - Laws of Motion>EXERCISE–3(B)>Q 15
Two equal and opposite forces act on a stationary body. Will the body move? Give a reason for your answer.
MEDIUM
9th ICSE
IMPORTANT
Concise Physics I.C.S.E Part I For Class 9>Chapter 3 - Laws of Motion>EXERCISE–3(B)>Q 16
Two equal and opposite forces act on a moving body. How its motion is affected? Give reason.
MEDIUM
9th ICSE
IMPORTANT
Concise Physics I.C.S.E Part I For Class 9>Chapter 3 - Laws of Motion>EXERCISE–3(B)>Q 17

An aeroplane is moving uniformly at a constant height under the action of two forces (i) upward force (lift) and (ii) downwards force (weight).

 What is the net force on the aeroplane ?

MEDIUM
9th ICSE
IMPORTANT
Concise Physics I.C.S.E Part I For Class 9>Chapter 3 - Laws of Motion>EXERCISE–3(B)>Q 18
Why does a person fall when he jumps out from a train?
MEDIUM
9th ICSE
IMPORTANT
Concise Physics I.C.S.E Part I For Class 9>Chapter 3 - Laws of Motion>EXERCISE–3(B)>Q 19
Why does a coin placed on a card, drops into the tumbler, when the card is rapidly flicked with the finger ?
MEDIUM
9th ICSE
IMPORTANT
Concise Physics I.C.S.E Part I For Class 9>Chapter 3 - Laws of Motion>EXERCISE–3(B)>Q 20
Why does a ball thrown vertically upwards in a moving train, comes back to the thrower's hand ?
MEDIUM
9th ICSE
IMPORTANT
Concise Physics I.C.S.E Part I For Class 9>Chapter 3 - Laws of Motion>EXERCISE–3(B)>Q 21
When a train suddenly moves forward, the passenger standing in the compartment tends to fall backward. Explain.
MEDIUM
9th ICSE
IMPORTANT
Concise Physics I.C.S.E Part I For Class 9>Chapter 3 - Laws of Motion>EXERCISE–3(B)>Q 21
When a corridor train suddenly starts, the sliding doors of some compartment may open. Explain.