[1] Explain how the shape of a musical instrument can affect the sound it produces. [2] What is an echo? [3] Why can we not hear ultrasound?
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[1] Explain how the shape of a musical instrument can affect the sound it produces.
[2] What is an echo?
[3] Why can we not hear ultrasound?
[4] Why do theaters and cinemas have curtains hanging along the walls?
[5] What is noise? Name three harmful effects of noise.
[6] Name three jobs where you think people should wear ear protectors.
[7] Why can it be very harmful to live very near the part of an airport where aircraft take off?
Please do not make them very complicated, instead only detail them a bit where people can understand it.
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