Science Max: Friction Flashcard

Front

What is friction?

Back

A force that occurs when two objects slide past each other.

Front

What material is used to make the simple hover disc in the experiment?

Back

Cardboard.

Front

Why does Phil prefer using sport bottle caps for the hover disc?

Back

They have a nozzle that can open and close.

Front

What problem did Phil encounter with the small hover disc?

Back

It didn't have enough air flow.

Front

What alternative to a balloon did Helena suggest for the larger hover disc?

Back

A leaf blower.

Front

What is the definition of force in science?

Back

A push or pull on an object.

Front

What is the role of air flow in a hover disc?

Back

Air flow helps lift the disc off the surface.

Front

What is the difference between static and kinetic friction?

Back

Static friction prevents motion, while kinetic friction occurs when objects are sliding past each other.

Front

Can friction be both helpful and harmful? Give an example.

Back

Yes, it helps us walk (helpful) but can cause wear on tires (harmful).

Front

What is an example of a material with low friction?

Back

Ice.