Energy produced by a machine or moving part

A form of energy that travels in a straight line and can be seen by the human eye

Energy produced from a vibration that you can hear

A flow of electrical charge through a conductor

The pathway through which electrical current flows

Material that allows electric current or heat to flow through easily

Material that stops current from flowing

The flow of electricity around a circuit

Energy waves bouncing off the surface of an object (Mirrors or echoes return energy back to the source)

Energy waves that bend (change direction and speed) as they pass from one type of object to another

A clear piece of curved glass or plastic that bends passing light to focus or spread the light rays

A push or pull that causes an object to move, stop, or change direction

The force that pulls objects toward the center of Earth

A force that slows or stops motion when objects rub together

The one thing in an experiment that a scientist will change.

The things in an experiment that a scientist must keep the same to ensure a valid result

The information that is collected during an experiement

A rapid back and forth movement that creates sound energy.

The symbols commonly used to show the direction and flow of energy

Energy that causes a transfer of heat between materials

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