Friction and Force Basics

Front

What is the unit called that measures force? Options: weight, meter, Newton, kilogram

Back

Newton

Front

What does friction produce?

Back

heat

Front

The force that acts in the opposite direction of motion when two surfaces come in contact.

Back

Friction

Front

What direction does friction act relative to motion?

Back

in the opposite direction

Front

How can friction be reduced?

Back

All of the above are ways of reducing friction: reduce the force acting between the 2 surfaces, reduce the roughness of the 2 surfaces coming in contact, use wax, grease or oil.

Front

What type of friction do wheels on a skateboard most likely experience? Options: Rolling Friction, Sliding Friction, Fluid Friction, Static Friction

Back

Rolling Friction

Front

Sally experiences-
Options: Rolling Friction, Sliding Friction, Fluid Friction, Static Friction

Back

Sliding Friction

Front

How does friction affect speed?

Back

More friction decreases speed.

Front

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

Back

All are examples that are helpful

Front

The amount of friction depends on the weight of the objects pressing together.

Back

True