Light and sound may seem familiar, but they can be very puzzling.Select which of the following statements you think are true.Waves carry material from one place to anotherWhite light is a mixture of light of different coloursLight bounces off mirrors but not other objects, like trees and concreteEvery object we see produces its own lightSound can't travel through outer spaceSound can't be absorbed by materialsRadio waves are a type of sound
Question
Light and sound may seem familiar, but they can be very puzzling.Select which of the following statements you think are true.Waves carry material from one place to anotherWhite light is a mixture of light of different coloursLight bounces off mirrors but not other objects, like trees and concreteEvery object we see produces its own lightSound can't travel through outer spaceSound can't be absorbed by materialsRadio waves are a type of sound
Solution
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Waves carry material from one place to another - False. Waves carry energy, not material.
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White light is a mixture of light of different colours - True. White light is indeed a mixture of all colors of light.
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Light bounces off mirrors but not other objects, like trees and concrete - False. Light bounces off many objects, not just mirrors. That's how we see those objects.
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Every object we see produces its own light - False. Most objects we see reflect light from other sources. Only certain objects, like the sun or a light bulb, produce their own light.
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Sound can't travel through outer space - True. Sound needs a medium like air or water to travel. In the vacuum of space, there is no medium for sound to travel through.
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Sound can't be absorbed by materials - False. Sound can indeed be absorbed by materials. That's why sounds are muffled when they pass through things like walls or doors.
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Radio waves are a type of sound - False. Radio waves are a type of electromagnetic wave, not a sound wave.
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