Front

energy

Back

the ability to do work or cause change.

Front

friction

Back

a force that opposes motion.

Front

mass

Back

the amount of physical matter that an object has.

Front

Net force

Back

the combination of all the forces acting on an object.

Front

Kinetic energy

Back

the energy of motion.

Front

potential energy

Back

Stored energy.

Front

work

Back

when a force is applied to an object and it moves in the direction of the force.

Front

motion

Back

The change of position of an object.

Front

atom

Back

particles of a substance that cannot be seen but can be detected by other means.

Front

mixture

Back

matter is combined and the materials do not lose their identifying characteristics.