Review: Week 2 Notes Mechanical Waves Interactions

What are 4 ways that waves interact with matter?

• Reflection, Absorption, Transmission, Diffraction

• Refraction, Dispersion, Polarization, Scattering

• Interference, Resonance, Polarization, Scattering

• Refraction, Absorption, Interference, Diffraction

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What is reflection in the context of waves?

• The absorption of a wave by a surface

• The passing of a wave through a surface

• The bouncing of a wave off a surface

• The destruction of a wave at a surface

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What happens to waves when they reflect?

• They stop moving

• They change direction

• They increase in speed

• They vanish

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What is the relationship between the angle of incidence and the angle of reflection?

• The angle of reflection is greater than the angle the wave strikes the barrier

• The angle of reflection is less than the angle the wave strikes the barrier

• The angle of reflection is equal to the angle the wave strikes the barrier

• There is no relationship between the angle of incidence and the angle of reflection

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Which of the following is an example of a sound wave reflecting?

• Sound waves passing through a wall

• Sound waves being absorbed by soft materials

• An echo bouncing off a mountain

• Sound waves being transmitted through water

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What is absorption in the context of waves?

• The reflection of energy by a wave off the surface of a medium

• The transfer of energy by a wave to the medium through which it travels

• The bending of a wave as it passes around an edge or through an opening

• The creation of energy by a wave when it encounters a new medium

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On what does the amount of energy absorbed by a wave depend?

• The color of the wave

• The temperature of the medium

• The type of wave and the material in which it moves

• The height of the wave

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Which of the following is an example of wave absorption provided in the material?

• Light being reflected by a mirror

• Cell phone sound through a wall with insulation

• Radio waves being transmitted through space

• Water waves bouncing back from a shoreline

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What is transmission in the context of waves?

• The absorption of a wave by a medium

• The reflection of a wave off a surface

• The passage of a wave through a medium

• The conversion of a wave into electrical signals

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Which of the following is an example of transmission?

• Sound being muffled by a wall

• Sound being heard in another room

• Light being blocked by curtains

• Radio waves being stopped by a metal barrier

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