EASY
9th Maharashtra Board
IMPORTANT
Earn 100

Deceleration is (negative / positive) acceleration.

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Important Questions on Laws of Motion

EASY
9th Maharashtra Board
IMPORTANT
Science and Technology Standard Nine>Chapter 1 - Laws of Motion>Exercise>Q 4
When an object is in uniform circular motion, its _____ (speed/ velocity) changes at every point.
EASY
9th Maharashtra Board
IMPORTANT
Science and Technology Standard Nine>Chapter 1 - Laws of Motion>Exercise>Q 4
 During collision total _____ (velocity, momentum) remains constant.
EASY
9th Maharashtra Board
IMPORTANT
Science and Technology Standard Nine>Chapter 1 - Laws of Motion>Exercise>Q 4
The working of a rocket depends on Newton’s _____ law of motion.
MEDIUM
9th Maharashtra Board
IMPORTANT
Science and Technology Standard Nine>Chapter 1 - Laws of Motion>Exercise>Q 5
Give scientific reasons.
When an object falls freely to the ground, its acceleration is uniform.
MEDIUM
9th Maharashtra Board
IMPORTANT
Science and Technology Standard Nine>Chapter 1 - Laws of Motion>Exercise>Q 5

Give scientific reasons.
Even though the magnitude of action force and reaction force are equal and their directions are opposite, their effects do not get cancelled.

MEDIUM
9th Maharashtra Board
IMPORTANT
Science and Technology Standard Nine>Chapter 1 - Laws of Motion>Exercise>Q 5

Give scientific reasons.

It is easier to stop a tennis ball as compared to a cricket ball, when both are travelling with the same velocity.

MEDIUM
9th Maharashtra Board
IMPORTANT
Science and Technology Standard Nine>Chapter 1 - Laws of Motion>Exercise>Q 5

Give scientific reasons.

The velocity of an object at rest is considered to be uniform.

MEDIUM
9th Maharashtra Board
IMPORTANT
Science and Technology Standard Nine>Chapter 1 - Laws of Motion>Exercise>Q 6

Take 5 examples from your surroundings and give explanation based on Newton's laws of motion.