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4 cards from this section. Quick, good the night before a test.
What happens to sound waves when they hit a wall?
Think about echoes!
What is it called when sound waves change direction in a new medium?
Remember how sound travels differently underwater.
What occurs when sound waves hit a reflective surface?
Think about echoes!
True or False: Refraction causes sound waves to slow down in water.
Consider how different materials affect movement.
If a sound wave travels from air into water and bends, how would the angle change if the wave enters at an angle of 30 degrees from the normal?
Consider the properties of different mediums.
Explain a scenario where sound interference is used positively in technology, such as noise cancelation.
Think about how headphones reduce outside noise for better sound quality.
6 more questions in this section. Enroll free to practise them all.
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