What produces light waves?
Light waves are produced by luminous objects such as:
1. The Sun
2. Candles
3. Light bulbs
4. Flames
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How do light waves travel?
Light always travels in straight lines away from the source.
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What are the similarities between light waves and water waves?
Light waves and water waves share the following similarities:
1. They are both transverse waves - having vibrations perpendicular to the direction of energy transfer.
2. They both transfer energy from one location to another.
3. They can both be reflected - such as by mirrors or other surfaces.
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What is the speed of light waves in a vacuum?
The speed of light waves in a vacuum is always 3 x 108 m/s.
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