Friction

Friction can sometimes be a problem. True or False?

• True

• False

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

• TRUE

• FALSE

Wheels on a skateboard most likely experiences-

• Rolling Friction

• Sliding Friction

• Fluid Friction

• Static Friction

Sally experiences-

• Rolling Friction

• Sliding Friction

• Fluid Friction

• Static Friction

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

• similar

• opposite

• parallel

• west

Tags

NGSS.MS-PS2-2

Friction is an example of _____________

• contact force

• non contact force

• both of these

• none of these

Frictional force depends on ____

• surface area in contact

• roughness of surface

• both a and b

• none of the above

Which of these materials do you predict would have the MOST amount of friction?

• metal

• tile

• sand paper

• denim

Rough surfaces have _________

• greater friction

• less friction

• the same level of friction

Which of the following is an example of friction that is helpful?

• Brakes used on a bike

• Tires from a car on the road

• Tread on the bottom of your shoes

• All are examples that are helpful