HARD
Earn 100

If we are travelling in a bus and the driver takes a sharp turn to the left we tend to move to the right. Explain how we return back to our original position?

Important Questions on Force and Laws Of Motion

EASY

A long jumper runs for a while before taking long jump so that the inertia of _____ helps him in taking a long jump.

EASY
The SI unit of mass is _____.
EASY

A ball is given some velocity at A and moves along a semi-circular ring fixed on a smooth horizontal table. The dotted line shows the path of the ball. In which direction 1, 2, 3 the ball will leave the ring.

 

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MEDIUM

What is the relationship between mass and inertia? Discuss.

EASY

Why do we jerk clothes before spreading them on line?

EASY

Resistance to change in the state of motion is called _____ of motion.

EASY
Two balls of the same size but of different materials, rubber and iron are kept on the smooth floor of a moving train. The brakes are applied suddenly to stop the train. Will the balls start rolling? If so, in which direction? Will they move with the same speed? Give reasons of your answer?
EASY

What is the measure of inertia?

EASY
A heavier body has less inertia.
EASY

Sparks fly off tangentially when a knife is rubbed on a hard rotating disc. How can you account for this.

EASY

Passengers tend to fall forward if the bus is stopped suddenly and fall backwards when it accelerates from rest. Explain

MEDIUM
Describe the experiment of Galileo and what conclusion can be drawn from that experiment.
EASY

Which of the following has more inertia—a rubber ball or a stone of same size? Why?

EASY
The SI unit of mass is grams.
EASY
When a carpet is beaten with a stick, dust comes out. Explain why.
MEDIUM
What is inertia? What gives the measure of inertia? Explain with example. 
EASY
Explain why it is dangerous to jump out of a moving bus?
EASY

Give two examples of each:

Inertia of rest

EASY

Give two examples each of Inertia of rest, Inertia of motion, and inertia of direction.