Changes in motion

By deyson

Momentum

The combination of the mass and the speed of an object is momentum.A baseball has more momentum than a tennis ball travaling the same speed because the baseballhas more mass

weighleness

Skydrivers experience feeling of weighleness, the state of begin without detectable weight

Energy

Theabillity to do work.If work is to accomplishe,energyis needed.Like work,energy is measured in joules. streched rubber band or wound up springs store energy because of their electricity.A rock on the edge of a cliff stores energy