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Questions and Answers
What is the unit used to express the speed of a wave?
What is the unit used to express the speed of a wave?
- Hertz (Hz)
- meters per second (m/s) (correct)
- meters (m)
- joules per second (J/s)
Which term is defined as a space with no particles in any state?
Which term is defined as a space with no particles in any state?
- photon
- oscillating
- vacuum (correct)
- transverse
What refers to the distance between identical points on consecutive waves?
What refers to the distance between identical points on consecutive waves?
- amplitude
- crest
- wavelength (correct)
- frequency
Which property spells the difference between infra-red and ultra-violet radiation?
Which property spells the difference between infra-red and ultra-violet radiation?
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Which two waves lie at the ends of the visible spectrum?
Which two waves lie at the ends of the visible spectrum?
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Study Notes
Wave Properties
- The speed of a wave is expressed in meters per second (m/s).
- A vacuum is a space with no particles in any state, meaning it is completely empty of matter.
Wave Characteristics
- Wavelength refers to the distance between identical points on consecutive waves.
- The difference between infra-red and ultra-violet radiation lies in their frequency, with infra-red having a lower frequency and ultra-violet having a higher frequency.
Visible Spectrum
- The visible spectrum consists of a range of wavelengths, with red and violet waves lying at the ends of the spectrum.
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