11.3 - Reflection of Sound
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Practice Questions
Test your understanding with targeted questions
What is an echo?
💡 Hint: Think of an example of a loud noise followed by a quieter repeat.
What is the law of reflection?
💡 Hint: Remember the angles involved when an object bounces off a surface.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What phenomenon allows sound to return to the listener after bouncing?
💡 Hint: Consider what happens when sound hits a hard surface.
True or False: The angle of incidence is always equal to the angle of reflection.
💡 Hint: Think about how light behaves when it reflects.
1 more question available
Challenge Problems
Push your limits with advanced challenges
A sound is produced at one end of a long canyon. If the echo is heard after 5 seconds, what is the distance to the cliff, given the speed of sound is 340 m/s?
💡 Hint: Remember to calculate the total distance using the time and speed.
In a concert hall, the reverberation time is too long and causes distortion. List three changes you would propose to reduce reverberation.
💡 Hint: Think about materials and architectural design that would help control sound.
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