Friction

Front

On which surface would a toy car travel the furthest when pushed? Options: Ice, Snow, Carpet, Sand

Back

Ice

Front

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

Back

Friction

Front

How does friction affect speed?

Back

More friction decreases speed

Front

What are 2 factors that determine the amount of friction between 2 objects?

Back

Force and roughness between surfaces

Front

Rough surfaces have _________ compared to smoother surfaces.

Back

greater friction

Front

Why is it harder for the boy in Image B to get down the hill?

Back

The grass has more friction

Front

Which would NOT be a way of reducing friction?

• making the surfaces smoother
• using waxes, oils, or grease
• wearing socks on hardwood floors
• Getting new tires on your car to help your car gain traction

Back

Getting new tires on your car to help your car gain traction

Front

Why is it important for basketball players to wear shoes with tread when playing?

Back

to increase friction between the floor and the player’s feet

Front

Friction is a force that acts in a/an ___________ direction of movement.

Back

opposite

Front

What is the unit for force?

Back

Newtons