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Waves
Question | Answer |
---|---|
Wave | a disturbance that moves through matter or space |
Transervers wave | particles in matter to move back and forth at right angles to the direction in which the wave travels |
Compressional wave | particles in matter to move back and forth along the same direction in which the wave travels |
Wavelenght | the distance between one point on a wave and the nearest point moving with the same speed and direction |
Frequency | the number of wavelengths that pass by a point each second |
Law of reflection | the angle that the incoming wave makes with the normal equals the angle that the outgoing wave makes with the normal |
Refraction | the change in direction of a wave when it changes speed as it travels from one material to another |
Diffracction | the bending of waves around an object |
Opaque | no light can go through |
Translucent | allow some light to go through |
Transparent | allow nearly all light to go through |
Reflect | when light bounces off a object |
Absorb | when the light goes through |
Transmit | when light passes from one place to another |