8th Grade - Ch 8 Flash Cards

Front

Work

Back

What happens when an object changes its position by moving in the direction of the force that is being applied

Front

Chemical Energy

Back

when substances react, they can release some of the chemical energy in the substances and warm the surroundings -stored in the bonds between atoms.

ex. burning coal produces heat

Front

Heat Energy

Back

Associated with moving particles that make up matter. The faster the particles move, the more heat energy is present.

Front

Mechanical Energy

Back

Energy in moving objects

ex. moving bicycle, wind, falling rock - in kinetic form

Front

Nuclear Energy

Back

Energy that is stored in the nucleus, or center, of an atom

Front

Radiant Energy

Back

associated with light

ex: The sun

Front

Electrical Energy

Back

Energy that causes electrons to move

ex. refrigerator, vacuum cleaner

Front

Simple Machine

Back

A tool with few parts that makes it easier or possible to do work

Front

Lever

Back

A simple machine containing a bar that can turn around a fixed point

Front

Fulcrum

Back

A fixed point around which a lever rotates