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WorksheetsHow Do Sound Waves Transfer Energy? — Worksheet Extraction
Total questions: 10
Worksheet time: 5mins
Дуу өөр өөр орчинд янз бүрийн хурдтай тархдаг. Аль орчинд хамгийн их хурдтай тархдаг вэ?
Solid
Liquid
Gas
Vacuum
Дууны хэрхэн тархаж чихэнд ирдэгийг тайлбарлана уу.
Бөөмүүд чичирч, зэргэлдээх бөөмстэй мөргөлдөж, энергийг долгион хэлбэрээр дамжиж чихэнд ирдэг.
Аянганаас гарсан дуу гэрэлтэй хамт чихэнд ирдэг.
Бөөмүүд агаарыг халааж чихэнд ирдэг.
Бөөмүүд цахилгаан гүйдлээр чихэнд ирдэг.
What causes an echo?
Sound waves are reflected by a hard surface and return to the listener
Sound waves speed up and become louder in open spaces
Sound waves are absorbed by soft materials and disappear
Sound waves are refracted when they pass through air
Explain why sounds cannot travel through space.
There are no particles in a vacuum to transfer the sound energy
Sound waves are too cold to move in space
Space blocks sound because it is dark
Sound gets converted to light in a vacuum
What happens to the amount of energy a sound wave transfers if the volume of the sound is increased?
It increases
It decreases
It stays the same
It changes randomly
A song is playing on the radio. Explain how we can hear the music.
The radio’s speaker vibrates, creating sound waves that travel through the air to your ear
Radio waves travel directly to your ear and you hear them without any speaker
Light from the radio carries the music to your ear
Heat from the radio makes the air move and you hear the motion
What is the name given to reflected sound?
Echo
Pitch
Noise
Ultrasound
Dolphins hunt using echolocation. Describe and explain how they use sound waves to find their prey.
They emit clicks and listen for returning echoes to judge the location and distance of prey
They stay silent and watch water currents for prey movement
They heat the water to force prey to surface
They reflect sunlight off the water to spot prey
In water, sound travels 1500 m in 1 second. An echo is heard in the boat 4 seconds after the sound is produced. Calculate the distance from the bottom of the boat to the seabed.
750 m
1500 m
3000 m
6000 m
What are the best ways to generate electricity without damaging the environment? Select all that apply.
Solar power
Wind power
Hydroelectric power
Coal-fired power without carbon capture
Geothermal power
