Discovery Science Falling Objects Vocab

Front

Change in velocity (speed, direction, or both) of a body

Back

acceleration

Front

Layers of gases surrounding a planet

Back

Atmosphere

Front

The act of touching

Back

contact

Front

Third planet from the Sun; where we live

Back

Earth

Front

A pull or push applied to an object

Back

force

Front

Item to measure object's motion

Back

frame of reference

Front

Force opposing motion across a surface or through a fluid

Back

friction

Front

Energy due to motion

Back

Kinetic energy

Front

Resistive force between two objects moving past each other

Back

kinetic friction

Front

Size of ground movement from seismic waves due to energy release

Back

magnitude