Friction

Front

What is friction?

Back

Friction is a force that opposes the motion of two surfaces that are in contact.

Front

How does friction help us write?

Back

Friction allows the pencil or pen to grip the paper, making it possible to write.

Front

What happens when you drag a heavy box across the floor?

Back

It creates heat due to friction between the box and the floor.

Front

Can friction be helpful? Give an example.

Back

Yes, friction is helpful when brakes stop a car.

Front

What is one effect of friction on moving objects?

Back

Friction can slow down or stop moving objects.

Front

What is an example of friction that is not helpful?

Back

Soil erosion is an example where friction can be harmful.

Front

What do two objects create when they rub against each other?

Back

They create heat due to friction.

Front

What is static friction?

Back

Static friction is the force that keeps an object at rest from moving.

Front

What is kinetic friction?

Back

Kinetic friction is the force that opposes the motion of two objects that are sliding past each other.

Front

How does friction affect tire movement on the road?

Back

Friction between tires and the road helps cars to grip and move safely.