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4 Cards in this Set
- Front
- Back
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Describe that infrared radiation is the transfer of energy by electromagnetic waves |
Infrared radiation is a type of electromagnetic radiation, which involves waves rather than particles. Radiation can pass through a vacuum of space |
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Explain that all object emit and absorb infrared radiation. |
All objects emit and absorb thermal radiation, which is also called infrared radiation. The hotter an object is, the more infrared radiation it emits. |
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Explain that the amount of infrared radiation emitted in a given time increase with the temperature of the object. |
All matter with a temperature greater than absolute zero emits thermal radiation. The hotter an object is, the more infrared radiation it emits. It also involves waves rather than particles. |
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Describe infrared radiation as electromagnetic waves. |
The speed of electromagnetic radiation in a vacuum is approximately three hundred million metres per second - nearly nine hundred thousand times faster than sound, which is why you see a flash of lightning before you hear the thunder. X-rays, visible light and radio waves are all types of electromagnetic radiation |
