Write a brief summary about the speed of sound wave through different media.
It depends on the spaces between particles where it is the fastest in solids, medium in liquids and slowest in gases.
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15
b) Suggest: A satellite system on earth sends and receives waves to and from the moon to calculate the distance. How this process is related to wave reflection?
Because it sends and receives waves , reflection is also bouncing back of a wave
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baam
Lose 10 points!
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star
Double points!
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fairy
Take points!
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25
baam
Lose 20 points!
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25
Define wave refraction.
The change in direction of a wave as it changes speed in moving from one medium into another is called refraction.
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25
Gamila was using an electric circuit, but she doesnโt know why itโs not working. suggest a way to help Gamila to find out why itโs not working
check if wires are not cut. Battery is working or not. Switch of the circuit is on or off
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15
The science teacher asked mohamed to choose a wave that describes the amplitude of the lion roar, so suggest a way he can use to choose the wave
โฆhe will choose based on higher amplitude or higher energy.โฆโฆโฆโฆ
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25
make 5 squats
great
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15
Youssef was practicing for the science exam, and then he faced the opposite figure: Which ray should he choose to apply law of reflection?
D
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banana
Go to last place!
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star
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gift
Win 10 points!
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lifesaver
Give 10 points!
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15
a) Solve: Observe the diagram below and determine which type of electric current does it represent?