Motion

Front

Why does a rolling ball stop?

Back

Friction

Front

The rate at which velocity changes is:

Back

acceleration

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

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

Back

Force and roughness between surfaces

Front

In which of the following activities is friction harmful? Options: car engine parts wearing out, a person walking, an eraser erasing, brakes stopping a car

Back

car engine parts wearing out

Front

Balanced or unbalanced?

Back

unbalanced

Front

What would you call a tree if you compared it with a moving car?

Back

reference point

Front

What type of friction acts upon a non-moving object? Options: Static Friction, Kinetic Friction, Rolling Friction, Sliding Friction

Back

Static Friction

Front

Net force when combining 25 N West with 10 N East?

Back

15 N West

Front

What causes a change in motion on an object?

Back

unbalanced force