Light and color

2. COLOR
1. Pick any two colors.
2. Describe the difference between the two colors using the
words FREQUENCY, WAVELENGTH, and ENERGY

3. COLOR
EQ: What is the difference between different colors?

4. COLOR
EQ: What is the difference between different colors?
FACT: White light is an electromagnetic wave made up of all
the colors of the rainbow.

5. COLOR
EQ: What is the difference between different colors?
FACT: White light is an electromagnetic wave made up of all
the colors of the rainbow.
Notice how the different colors refract at different angles…

6. COLOR
EQ: What is the difference between different colors?
FACT: White light is an electromagnetic wave made up of all
the colors of the rainbow.
Notice how the different colors refract at different angles…
Here’s why…

7. COLOR
EQ: What is the difference between different colors?
FACT: White light is an electromagnetic wave made up of all
the colors of the rainbow.
1. Blue light has a ___________ wavelength than green light.
2. Green light has a ____________ frequency than red light.
3. Red light has ___________ energy than orange light.
4. Orange light has a ___________ frequency than yellow light.
5. Yellow light has a ___________ wavelength than blue light.

8. COLOR
EQ: What is the difference between different colors?
FACT: White light is an electromagnetic wave made up of all the
colors of the rainbow.
When white light shines on a…
1. red strawberry, red is ________ and all other colors are _________.
2. blue shirt, blue is _______ and all other colors are __________.
3. green leaf, green is _______ and all other colors are __________.
4. black jacket, ___________________________________________.
5. white piece of paper, ____________________________________.
What if a blue/green/red light shines on these things?

14. COLOR
EQ: What is the difference between different colors?
FACT: White light is an electromagnetic wave made up of all
the colors of the rainbow.
When white light shines on a…
1. violet filter, violet is ________ and all other colors are _________.
2. blue filter, blue is _______ and all other colors are __________.
3. green filter, green is _______ and all other colors are _________.
What if a blue/green/red light shines on these things?

15. COLOR
EQ: What is the difference between different colors?
FACT: White light is made up of all the colors of the rainbow.
Extension:
Use what you know about how different wavelengths
are absorbed or reflected to develop a hypothesis to
answer the question:
“Will a plant grow better under a green light or under a
red light?”
Explain your answer!

16. COLOR
EQ: What is the difference between different colors?
FACT: White light is made up of all the colors of the
rainbow.
SUMMARY:
What are the differences between different colors?
– Use an example in your answer.
– Use ALL of the following words:
Wavelength frequency energy

18. Radio Waves Ultraviolet

19. Microwave image of the Universe

23. The paper below was left out in the sun for 1 minute and then was
photographed using an infrared camera. Which color do you think will
be the hottest? The coolest?

24. When you bounce a ball,
mechanical energy is
converted into thermal (or
heat) energy. Each time the
ball hits the ground, some of
the kinetic energy of the ball's
motion is converted into
thermal energy, causing it to
slow down and heat up at
each bounce. In the infrared
image to the right, you can
see how the temperature of
the ball increased after it was
bounced several times.

25. X-Rays:
X-Rays have a ____________ wavelength, __________
frequency, and ____________ energy than visible light.

26. Crab Nebula

27. Crab Nebula

28. Gamma Rays
(in magenta)

29. 1. Pick any two types of EM radiation.
2. Describe the difference between the two
types using the words FREQUENCY,
WAVELENGTH, and ENERGY

30. In Search of Erupting Black Holes

31. Waves QUIZ

32. Waves Concept Check
(Level 1)
1. A wave carries _____________.
2. A wave is a disturbance that travels through
______________ or _____________.
3. Waves that do not require a medium are called
______________ waves.
4. Waves that require a medium are called
______________ waves.
5. As the frequency of a wave increases, the _________
of the wave also increases.
6. The distance from the rest position to a crest or

33. Waves Concept Check
(Level 1)
7. Rank the following waves in order from highest
energy to lowest energy.
A
DC
B

34. Waves Concept Check
(Level 1)
8. Images look upside down when viewed through a
__________ lens.
9. Light waves bend, or ___________, as they pass
through a new medium, such as the glass of a
lens, at an angle.
10. You can see yourself in a mirror because light
waves are ____________ off of the mirror’s
surface.

35. Waves Concept Check
(Level 2)
Answer the following questions in COMPLETE SENTENCES.
1. How is wavelength affected by increasing frequency?
2. How is amplitude affected by increasing frequency?
3. How is frequency affected by decreasing wavelength?
4. How is wavelength affected by decreasing amplitude?

36. Energy of Waves
Greater amplitude = ______________ energy
Greater frequency = ______________ energy
Greater wavelength = _____________ energy

37. Waves QUIZ
11. How do images appear through a convex lens?
12. How do images appear through a concave lens?
13. How do images appear reflected off a convex
mirror?
14. How do images appear reflected off a concave
mirror?
15. _____________ (high/low) frequency =
_____________ (long/short) wavelength and
_____________ (high/low) energy.
16. _____________ (high/low) frequency =
_____________ (long/short) wavelength and
_____________ (high/low) energy.

38. Waves QUIZ