| A | B |
|---|
| wave | A disturbance that travels through mater or space,carrying energy from one place to another |
| amplitude | The distance that any point on a wave has moved from its resting position;equal to half the wave height |
| wavelenght | The measurement of the distance between the crests and troughs in a series of waves |
| transverse wave | A wave in which the paricles vibrate at right angles to the direction of the wave |
| longitudinal wave | A wave in which the particles vibrate back and fort in the same direction as the wave is moving |
| frequency | The number of vibrations a wave has in a given time |
| pitch | The level of a sound's persived highness or lowness |
| loudness | The perception of the amplitude of a sound wave |
| electromagnetic waves | Waves of vibrating electric and magnetic fields |
| radiant energy | The kind of energy carried by electromagnetic waves |
| reflection | The bouncing of light waves off a surface |
| refraction | The bending of a light wave when it passes from one medium to another |
| transparent | Relating to a medium or substance that light can travel through |
| opaque | Not allowing light to pass through |
| translucent | Relating to a susbstance that allows light to pass through it but scaters the light |
