The change in direction of a wave as it changes speed in moving from one medium into another is called refraction.
Oops!
Check
Okay!
Check
monster
Reset all scores!
Oops!
magnet
Take 20 points!
Okay!
gift
Win 25 points!
Okay!
thief
Give points!
5
10
15
20
25
25
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.
Oops!
Check
Okay!
Check
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
Oops!
Check
Okay!
Check
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
Oops!
Check
Okay!
Check
25
make 5 squats
great
Oops!
Check
Okay!
Check
15
a) Solve: Observe the diagram below and determine which type of electric current does it represent?
AC
Oops!
Check
Okay!
Check
baam
Lose 25 points!
Oops!
gold
Win 50 points!
Okay!
fairy
Take points!
5
10
15
20
25
thief
Give points!
5
10
15
20
25
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
Oops!
Check
Okay!
Check
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