Light from the sun travels through space to Earth as transverse waves. These light waves DO NOT need a medium in which to travel. Think about the path that the light from the sun takes to shine through your window.
How did that sunlight reach us all the way here on Earth?
What does it travel through?
Watch the video with the entire class and answer the question.
Question 2
2.
Observe the two examples of transverse waves.
How does each transfer energy from one place to another?
Question 3
3.
What patterns do you observe?
How are the two waves similar?
How are they different?
Question 4
4.
How many waves does electromagnetic (EM) have in it?
Question 5
5.
Electromagnetic wave is made up of what kind of waves?
Question 6
6.
These two waves are __________________________ to each other and carry energy away from the charged particle.
Question 7
7.
Electromagnetic waves (EM) do not need a medium in which to travel.
Question 8
8.
Light that we readily see is called _________________ light.
Question 9
9.
Which of the following waves is part of EM spectrum?
Question 10
10.
Shorter wavelengths have ______________than longer wavelengths.
Question 11
11.
In a vacuum, all EM waves, including light, move at the same speed. What is the speed of light?
Question 12
12.
The ratio of the speed of light through diamond to the speed of light through a vacuum is__________.
Question 13
13.
The ratio of the speed of light through glass to the speed of light through a vacuum is___________.
Question 14
14.
The ratio of the speed of light through water to the speed of light through a vacuum is ____________.
Question 15
15.
What does the energy of an EM wave depend upon?
Question 16
16.
The more energy EM waves have, the more safer they can be to living tissue.
Question 17
17.
When working with x-rays, lab teachnicians are wearing a lead apron. Explain.
