Understanding Friction

What happens to a toy car when pushed on a smooth surface compared to a rough one?

• It travels the same distance.

• It travels a shorter distance.

• It does not move at all.

• It travels a longer distance.

How does friction affect the movement of objects?

• It speeds up the movement.

• It has no effect on movement.

• It slows down and eventually stops the movement.

• It makes objects move in circles.

Why is it difficult to walk on ice?

• Because ice is too cold.

• Because ice is very rough.

• Because ice is very smooth and has low friction.

• Because ice is sticky.

What kind of surface is needed for a boy to climb a pole easily?

• A very smooth surface.

• A wet surface.

• A very rough surface.

• A slippery surface.

What would happen if there was no friction in space?

• Objects would stop moving.

• Objects would move indefinitely.

• Objects would move in circles.

• Objects would fall to the ground.

In a bowling game, what kind of friction is desired for the ball to move fast?

• High friction.

• No friction.

• Moderate friction.

• Low friction.

What is the relationship between friction and grip?

• Lower friction means more grip.

• Higher friction means more grip.

• Higher friction means less grip.

• Friction and grip are unrelated.

Why are the surfaces of tires made rough?

• To reduce the weight of the tires.

• To increase the speed of the vehicle.

• To make the tires look better.

• To provide more grip on the road.

What happens to a striker on a carom board compared to a carpet?

• It moves farther on the carom board.

• It moves the same distance on both.

• It moves farther on the carpet.

• It does not move on the carom board.

Why do smoother surfaces have less grip?

• Because they are heavier.

• Because they are colder.

• Because they have less friction.

• Because they have more friction.