Friction

Front

Friction _____________ motion

Back

Opposes

Front

True or False: objects that are smooth have LESS friction than objects that are rough

Back

TRUE

Front

Which type of friction keeps objects from sliding around all over the place? Options: Static Friction, Rolling Friction, Fluid Friction, Sliding Friction

Back

Static Friction

Front

Which force pulls you down towards earth when you jump out of an airplane?

Back

Gravity

Front

Why does a parachute help you land safely when skydiving?

Back

While gravity pulls you down very quickly, Air Resistance (fluid friction) pushes back against gravity and your parachute, slowing you down.

Front

When you go down a slide, which two forces are competing in a tug of war?

Back

Gravity and Sliding Friction

Front

Who won the tug of war between sliding friction and gravity if you are unable to make it to the bottom of the slide?

Back

Sliding friction

Front

Which of these materials would have the MOST amount of friction? Options: Metal, Tile, Sand Paper, Denim

Back

Sand Paper

Front

TRUE or FALSE: If you push a box across a surface like ice with no friction, it will NEVER stop.

Back

TRUE, as long as it doesn't run into something it will keep going and going and going.

Front

TRUE or FALSE: If you push a box across a surface like rough wood with a lot of friction, it will NEVER stop.

Back

FALSE, it will stop very quickly.