The document discusses the characteristics and properties of light. It begins by asking questions about light and its behaviors. It then covers key topics like the electromagnetic spectrum, photon theory, and wave-particle duality of light. The document explores the visible light spectrum and different colors of light (red, orange, yellow, green, blue, indigo, violet) which are defined by their frequencies and wavelengths. It emphasizes the importance of light in everyday life, such as for plant growth. Students are then quizzed to evaluate their understanding of topics like the relationship between energy, frequency, and wavelength across the different colors of light.

3. Review:
How is
sound
produce?
Thing that
can be
heard
VIBRATION

4. CHARACTHERISTICS
OF SOUND
LOUDNESS
PITCH
QUALITY OF
TIMBRE

5. Mam Cel Pena
COLORS OF
LIGHT

6. and
3 pics 1 Word Game

7. INTENSITY

8. COLOR

9. l
LIGHT

10. THE
BEAUTY OF
NATURE
5 minutes
Video

11. QUESTIONS:
5 minutes
 Look at the things around you
 What make you see the things
aside from your eyes?
(HANGING QUESTIONS)
 How does the light behaves so
that we can be able to see this
beautiful creatures?
 Does light have colors?
 What are the colors of light?

12.  Target
 Relate characteristics of light
such as color and intensity to
frequency and wavelength
 Identify the different colors of
light
 Cite application on the
importance of light in
everyday living
. Explain
color
and intensity of
light in terms
of
its wave
characteristics
LEARNING
COMPETENCY:

13. Activity Proper
15 mins
Explore
the Visible
Spectrum

14. Presentation
of group
output

15. 20 min
Does visible light have
colors?

16. What are the colors of
light?

18. How does the light behave so
that we can be able to see this
beautiful creatures?

19. LIGHT
 Electromagnetic wave
 It does not need a medium in order to
propagate
 Travels in a straight path
 Speed of 299,792,458 meters per second
(vacuum )
 499 second or approximately 8 seconds
(sunlight reaches the Earth )
 Is a form of energy made of PHOTON ( smallest
unit of visible light )

20. LIGHT
Artificial source of Light

21. Different scientist spend a lot of time in
understanding how light behaves?
“Light behaves like a
particle”
Isaac Newton
“Light behaves like
a Wave”
Louis de Broglie
“Light can be a
particle and a
wave”
James Clerk Maxwell
“Electromagnetic
Theory of Light”

22. DUAL NATURE: Particle Nature and Wave
Nature

23. LIGHT
Vibration of Magnetic and Electric Field

25. Trough

27. PHOTOMETRY – the science
of measuring the intensity
or brightness of light

29. Candela

32. The higher amplitude correspond to a brighter light
While the lower amplitude corresponds to a dimmer light

35. As the wavelength increases, the frequency decreases

36. Going back to the video clip shown to
you, what are the importance of light?
How important is light in
our day to day living?
( Sunlight…Growth of plants)

37. If you are going to plant
vegetables what thus
the plant need in order
to grow?
Where are you
going to place
your plant?
Our province Camarines
Norte is considered lucky
when it comes to
Agriculture?
Why do you think so?

38. EVALUATION:
 Answer the questions by YES or NO. Write
your answer on your quiz notebook
 1.As the energy increases the wavelength
decreases?
 2. As the frequency decreases the wavelength
also decreases?
 3. Red has the greatest frequency?
 4. Violet has the greatest wavelength?
 5. Light is made up of different colors of
specific frequencies and wavelengths?

39. EVALUATION:
 Answer the questions by YES or NO. Write
your answer on your quiz notebook
 1.As the energy increases the wavelength
decreases? YES
 2. As the frequency decreases the wavelength
also decreases? YES
 3. Red has the greatest frequency? NO
 4. Violet has the greatest wavelength? NO
 5. Light is made up of different colors of
specific frequencies and wavelengths? YES

40. Assignment:
Explain how important
is the proper lighting in
our lives?
Performance Task: Thursday
Submission
Create a Power Point presentation
to inform 7th graders about the
importance of proper lighting at
home and in school