1. Let’s Review A brief review of information from the unit on Waves Mrs. Templin 8 th Grade Physical Science

2. Transverse Mechanical Electromagnetic Which type of wave does not require a medium?

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4. Try Again A transverse wave causes the particles of the medium to vibrate perpendicular to the direction in which the wave is traveling.

5. Try Again A mechanical wave requires a medium through which to travel.

6. Crest Trough Amplitude What is the term for the highest point of a transverse wave?

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8. Try Again The trough is the lowest point of a transverse wave.

9. Try Again The amplitude is the greatest distance that particles in a medium move from their normal position when a wave passes.

10. Refraction Diffraction Interference Waves bend when they pass through an opening. What is this called?

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12. Try Again Refraction is the bending of waves as they pass from one medium to another.

13. Try Again Interference is the combination of two or more waves that exist in the same place at the same time.

14. Density of the medium Temperature of the medium Both density and temperature of the medium Both density and temperature of the medium The speed of sound depends on which of the following?

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16. Try Again The speed of sound does not depend on the density of the medium alone.

17. Try Again The speed of sound does not depend on the temperature of the medium alone.

18. Amplitude Frequency Wavelength The energy of a photon is proportional to which characteristic of the corresponding light wave?

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20. Try Again The energy of light, when modeled as a photon, is not proportional to the amplitude of the corresponding wave.

21. Try Again The energy of light, when modeled as a photon, is not proportional to the wavelength of the corresponding wave.

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