Light travels as transverse waves and ____ than sound. It can be ____, refracted and dispersed. ____ diagrams show what happens to light in mirrors and lenses. ____ and ____ detect light. Transverse waves are like the ____ in a tank of water. The direction of vibration in the waves is at ____ to the direction that the light travels. Light travels in ____ lines, so if you have to represent a ray of light in a drawing, always use a ____. Unlike sound waves, light waves can travel through a ____ (empty space). They do not need a substance to travel through, but they can travel through ____ and translucent substances.

Light

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