Physics_Y9_S1

Front

Absolute zero

Back

The coldest possible temperature where nothing moves, 0 Kelvin or -273.15°C.

Front

Conduction

Back

Heat moving through something by direct touch.

Front

Convection

Back

Heat moving through liquids or gases as they flow.

Front

Radiation

Back

Heat moving through space by light or energy waves.

Front

Sound wave

Back

A vibration that moves through air, water, or solids and can be heard.

Front

Light wave

Back

A type of wave that we can see with our eyes.

Front

Amplitude

Back

How tall a wave is from the middle to the top or bottom.

Front

Wavelength

Back

The distance between one wave and the next.

Front

Frequency

Back

How many waves go by in one second.

Front

Frequency units

Back

Measured in hertz (Hz), which means waves per second.