1. The Sun’s Energy
Worksheet Review

2. Types of Energy

3. Mechanical Energy

4. Radiant Energy

5. Thermal Energy

6. Chemical Energy

7. Electrical Energy

8. Electromagnetic Energy

9. Nuclear Energy

10. Energy Transfers

11. Energy Transfer
Chapter 17.2
HEAT – the energy transferred from one object to another because of a difference in temperature

12. Conduction the transfer of heat through matter by molecular activity
Two objects transfer heat because they are touching
Solids, Liquids, & Gases

13. Convection
the transfer of heat by mass movement or circulation within a substance.
Usually in fluids (air, water, magma)

14. Radiation energy that travels in the form of a wave
Can travel through vacuum (no matter)
Travels out in all directions

17. The Sun Chapter 24.3

18. How does the sun comare…

19. 4 parts of the sun

20. A. Core Structure of the Sun
the temperature at the core is 15,000,000°C
it is made up entirely of gas
the sun is fueled by nuclear fusion
in this process, hydrogen atoms are fused to make helium atoms

21. Hydrogen Atom
Nuclear Fusion
Hydrogen Atom

22. Nuclear Fission

23. Combustion

24. B. Radiation Zone: the temperature in the radiation zone is 2,500,000°C
C. Convection Zone: the temperature in the convection zone is 1,000,000 °C

26. Atmosphere of the Sun A. Photosphere
the temperature in the photosphere is 6,000 °C
it is considered the surface of the sun
it appears yellow in color

28. B. Chromosphere
the temperature in the chromosphere is 4,000 °C
it appears reddish in color

30. Corona the temperature in the corona is 2,000,000°C
it can only be seen during a total solar eclipse

32. Solar Activity
Sunspots: cool, dark areas of the sun that appear darker than the surrounding areas
number of sunspots varies according to an average 11-year cycle
temperature drops and solar activity slow at site

35. Prominences: cloud of glowing gases that arches high above the sun’s surface
caused by the sun’s magnetic field

37. Solar Flare: sudden outward eruption of electrically charged atomic particles
may interfere with phone, TV, and radio reception

39. Solar Wind: electrically charged atomic particles that stream out into space from holes in the corona
as particles fly past the Earth, they interact with our magnetic field and upper atmosphere causing auroras

40. The Study of Light Chapter 24.1

41. Electromagnetic Radiation
Type of energy in the form of rays and waves

42. Electromagnetic Spectrum
the arrangement of the different types of electromagnetic radiation (like a pattern)
arranged according to wavelength and frequency
we will focus on visible light

45. frequency: how many time a wavelength passes a particular point
Different wavelengths represent different colors
Violet
Blue
Green
Yellow
Orange
Red

47. SPECTROSCOPY the study of light that depends on wavelength
there are different types of spectrum depending on the conditions of the gas (temperature & pressure)

48. DOPPLER EFFECT
The Change in wavelength of a wave that is emitted from a source that is moving away or toward an object.
SOUND
Doppler Demo:
Siren Sound:
Moving Ambulance:

49. LIGHT
In Astronomy, the Doppler effect is used to determine whether a star is moving away from or toward Earth
Movement is determined by the length and color of the wave

50. Moving toward  appears more blue because wavelength is shorter…
Moving toward  appears more blue because wavelength is shorter….BLUE SHIFT
Moving away  appears more red because wavelength is longer…….RED SHIFT

51. Earth’s magnetic field protects the planet from the harmful effects of radiation
Portals allowing radiation into Earth’s atmosphere
Holes in Earth’s Magnetic Field

53. Once solar radiation reaches Earth…

54. Heating land vs. water…