Sources of Light, Heat,
Electricity, and Sound
sourcesoflightheatelectricity-220310022842 [Autosaved].pptx
sourcesoflightheatelectricity-220310022842 [Autosaved].pptx
sourcesoflightheatelectricity-220310022842 [Autosaved].pptx
Sources of Light
sourcesoflightheatelectricity-220310022842 [Autosaved].pptx
sourcesoflightheatelectricity-220310022842 [Autosaved].pptx
sourcesoflightheatelectricity-220310022842 [Autosaved].pptx
sourcesoflightheatelectricity-220310022842 [Autosaved].pptx
sourcesoflightheatelectricity-220310022842 [Autosaved].pptx
sourcesoflightheatelectricity-220310022842 [Autosaved].pptx
sourcesoflightheatelectricity-220310022842 [Autosaved].pptx
sourcesoflightheatelectricity-220310022842 [Autosaved].pptx
sourcesoflightheatelectricity-220310022842 [Autosaved].pptx
☼Natural Sources of Light
- A light source that is formed by
nature and not made by humans.
Examples:
Objects that produce their own light:
Firefly Crystal
jellyfish
Glow worms
The sun is a star that is the
closest one to Earth and thus
outshines all the other stars.
UY Scuti is a red
supergiant star that is
way more bigger than
the sun.
☼Artificial Sources of Light
- A light source that are man-made or
artificial.
- Some are using batteries, plugged into an
electrical power outlet.
- Others are lighted by fire.
Sources of Heat
- Sources of light are most often also
sources of heat.
- Others do not visibly give off light.
- Heat energy also can come from
electricity.
Sources of Electricity
Electricity is carried by power lines that
are connected to our homes and buildings. These
power lines come all the way from power plants
that produce energy from different sources.
Geothermal power plants use
hydrothermal resources that have
both water (hydro) and heat
(thermal). They require high-
temperature (300°F to 700°F)
hydrothermal resources that come
from either dry steam wells or
from hot water wells.
Hydropower plants capture the
energy of falling water to
generate electricity. A turbine
converts the kinetic energy of
falling water into mechanical
energy. Then a generator
converts the mechanical energy
from the turbine into electrical
energy.
Tongonan Geothermal Power Plant is situated in
Kananga, Leyte in the Philippines. The Power
Plant generates and supplies electricity in Leyte
The sun shines on the solar panels
and the panels absorb the energy,
creating direct current (DC)
electricity. The electricity is fed into
what is called a solar inverter. This
converts the current into alternating
current (AC) electricity. The AC
current is then used to power the
appliances in your home.
Wind turbines are tall towers
topped with blades. The blades
are connected to a vertical
shaft, or rod. When wind causes
the blades to spin, they turn
the shaft. The turning shaft
provides power to a machine
called a generator, which
produces electricity.
- Batteries also provide electricity. They
come in different shapes and sizes.
Button cell batteries
Automotive battery
Cylindrical batteries
Mobile phone batteries
Sources of Electricity
-Under the Earth
-Energy from the Sun
-Force of Water
-Power of winds
Explore Around:
Electricity Detective
(Page 308-309)
Sources of Sound
- Sounds are produced when molecules
vibrate as a result of a movement or an event.
- Vibrations are quick, up-and-down or
back-and-forth movements that produce sound
waves.
♪ Sounds can come from OBJECTS
♪ Sounds can come from VEHICLES
♪ Sounds can come from ANIMALS
♪ Sound can come from INSTRUMENTS
♪ Sound can come from PEOPLE
Uses of Light, Heat, Sound,
and Electricity
sourcesoflightheatelectricity-220310022842 [Autosaved].pptx
sourcesoflightheatelectricity-220310022842 [Autosaved].pptx

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sourcesoflightheatelectricity-220310022842 [Autosaved].pptx

  • 1. Sources of Light, Heat, Electricity, and Sound
  • 15. ☼Natural Sources of Light - A light source that is formed by nature and not made by humans. Examples:
  • 16. Objects that produce their own light: Firefly Crystal jellyfish Glow worms
  • 17. The sun is a star that is the closest one to Earth and thus outshines all the other stars. UY Scuti is a red supergiant star that is way more bigger than the sun.
  • 18. ☼Artificial Sources of Light - A light source that are man-made or artificial. - Some are using batteries, plugged into an electrical power outlet. - Others are lighted by fire.
  • 19. Sources of Heat - Sources of light are most often also sources of heat. - Others do not visibly give off light. - Heat energy also can come from electricity.
  • 20. Sources of Electricity Electricity is carried by power lines that are connected to our homes and buildings. These power lines come all the way from power plants that produce energy from different sources.
  • 21. Geothermal power plants use hydrothermal resources that have both water (hydro) and heat (thermal). They require high- temperature (300°F to 700°F) hydrothermal resources that come from either dry steam wells or from hot water wells. Hydropower plants capture the energy of falling water to generate electricity. A turbine converts the kinetic energy of falling water into mechanical energy. Then a generator converts the mechanical energy from the turbine into electrical energy.
  • 22. Tongonan Geothermal Power Plant is situated in Kananga, Leyte in the Philippines. The Power Plant generates and supplies electricity in Leyte
  • 23. The sun shines on the solar panels and the panels absorb the energy, creating direct current (DC) electricity. The electricity is fed into what is called a solar inverter. This converts the current into alternating current (AC) electricity. The AC current is then used to power the appliances in your home. Wind turbines are tall towers topped with blades. The blades are connected to a vertical shaft, or rod. When wind causes the blades to spin, they turn the shaft. The turning shaft provides power to a machine called a generator, which produces electricity.
  • 24. - Batteries also provide electricity. They come in different shapes and sizes. Button cell batteries Automotive battery Cylindrical batteries Mobile phone batteries
  • 25. Sources of Electricity -Under the Earth -Energy from the Sun -Force of Water -Power of winds
  • 27. Sources of Sound - Sounds are produced when molecules vibrate as a result of a movement or an event. - Vibrations are quick, up-and-down or back-and-forth movements that produce sound waves.
  • 28. ♪ Sounds can come from OBJECTS
  • 29. ♪ Sounds can come from VEHICLES
  • 30. ♪ Sounds can come from ANIMALS
  • 31. ♪ Sound can come from INSTRUMENTS
  • 32. ♪ Sound can come from PEOPLE
  • 33. Uses of Light, Heat, Sound, and Electricity