Contact & Non-Contact Forces Flashcard

Front

What force is increased by pouring sand on an icy road to help cars stay on the road?

Back

Friction

Front

What is a force that can act between two objects that are not physically touching each other?

Back

Non-Contact Force

Front

What type of force is friction classified as?

Back

Contact Force

Front

What defines a contact force?

Back

A contact force is from objects physically touching.

Front

What is the interaction that defines a contact force?

Back

An interaction between at least two objects that are physically touching.

Front

What are the two main categories of forces?

Back

Contact Forces and Non-Contact Forces.

Front

Give an example of a non-contact force.

Back

Gravity.

Front

What is the role of friction in motion?

Back

Friction opposes the motion of objects.

Front

What happens to friction when surfaces are rough?

Back

Friction increases.

Front

What is the effect of lubrication on friction?

Back

Lubrication reduces friction.