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English 8 Public

science

Study Slideshow

Define wave refraction.

The change in direction of a wave as it changes speed in moving from one medium into another is called refraction.

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.

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

…he will choose based on higher amplitude or higher energy.…………

Gamila was using an electric circuit, but she doesn’t know why it’s not working. suggest a way to help Gamila to find out why it’s not working

check if wires are not cut. Battery is working or not. Switch of the circuit is on or off

Youssef was practicing for the science exam, and then he faced the opposite figure: Which ray should he choose to apply law of reflection?

a) Solve: Observe the diagram below and determine which type of electric current does it represent?

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

make 5 squats

great