Front

Pattern of motion of the jump rope

Back

circular around Izzy

Front

Pendulum motion prediction

Back

Long pendulum swings slowest

Front

Fastest pendulum motion?

Back

Shortest one

Front

Resistance to motion

Back

Friction

Front

Friction of surfaces

Back

Heat

Front

Purpose of air in air hockey

Back

Reduces friction

Front

Bowling alley lane coating

Back

Oil

Front

Part of a car that increases friction

Back

tires

Front

Patterns of motion

Back

make predictions

Front

Causes of pendulum patterns

Back

Different length of strings