Friction — Set 4

Which of the following is a way to reduce friction in a door hinge?

The rolling friction of a wheel is generally _____ than its sliding friction.?

What is the role of friction when we are braking a car?

Which of these materials would likely have the lowest coefficient of friction when sliding on steel?

The force of friction between two surfaces depends on _____.?

Why is it easier to pull a suitcase with wheels than one without?

What happens to the temperature of two stones when they are rubbed against each other?

Friction between the clouds and the air can lead to the build-up of _____.?

Which of the following describes 'limiting friction'?

Friction can be reduced by using which of the following in machines?