Astro 7N PSU Exam 1.pdf file:///C:/Users/HP/Desktop/dddd/Astro%207N%20PSU%20Exam%201
ASTRO 7N PSU EXAM 1
1. Newton's 1st Law: An object at rest stays at rest unless acted upon by a force
2. Newton's 2nd Law: F=ma
3. Newton's 3rd Law: For every action, there is an equal and opposite reaction
4. Strength of Gravity: g=M/(R^2)
5. Force of Gravity: F=(M1M2/(D^2))
6. Sun's Movement: East to West Due
to Earth's rotation
7. Phase Order of the Moon: New --> Waxing Crescent --> First Quarter --> Waking Gibbous -->
Full --> Waning Gibbous -->Third Quarter --> Waning Crescent --> New
8. Full Moon: Sun--Earth--Moon
9. New Moon: Sun--Moon--Earth
10. Constellation: Large defined area in the sky There
are 88
11. Forms of Light: Gamma, X-Ray, UV, Visible, Infrared, Microwave, Radio
12. Bluer Color: Short wavelength
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1 of 11 9/27/2024, 4:23
,Astro 7N PSU Exam 1.pdf file:///C:/Users/HP/Desktop/dddd/Astro%207N%20PSU%20Exam%201
High frequency
13. Redder Color: Long wavelength Low
frequency
14. Continuum Spectrum: Light at all wavelengths
15. Absorption Spectrum: Shows dark lines in the spectrum at certain wave- lengths
Produced by a gas cloud in front of a light source
16. Absorption Line: Dark lines in the spectrum at certain wavelengths
Produced when photons are absorbed by electrons and the electrons move from a lower to higher
energy level
17. Emission Line: Bright lines at specific wavelengths Due to
emission of photons from atoms
Produced when electrons jump from higher to lower energy levels
18. Light-Gathering Power: Important quality of a telescope Amount
of light a telescope can gather
19. Angular Resolution: The ability of a telescope to distinguish two nearby light sources
20. Atmospheric Problems: Certain kinds of radiation can't get through the atmos- phere so we
can't see a clear picture from a telescope on the ground
Atmosphere blurs
2/
2 of 11 9/27/2024, 4:23
ASTRO 7N PSU EXAM 1
1. Newton's 1st Law: An object at rest stays at rest unless acted upon by a force
2. Newton's 2nd Law: F=ma
3. Newton's 3rd Law: For every action, there is an equal and opposite reaction
4. Strength of Gravity: g=M/(R^2)
5. Force of Gravity: F=(M1M2/(D^2))
6. Sun's Movement: East to West Due
to Earth's rotation
7. Phase Order of the Moon: New --> Waxing Crescent --> First Quarter --> Waking Gibbous -->
Full --> Waning Gibbous -->Third Quarter --> Waning Crescent --> New
8. Full Moon: Sun--Earth--Moon
9. New Moon: Sun--Moon--Earth
10. Constellation: Large defined area in the sky There
are 88
11. Forms of Light: Gamma, X-Ray, UV, Visible, Infrared, Microwave, Radio
12. Bluer Color: Short wavelength
1/
1 of 11 9/27/2024, 4:23
,Astro 7N PSU Exam 1.pdf file:///C:/Users/HP/Desktop/dddd/Astro%207N%20PSU%20Exam%201
High frequency
13. Redder Color: Long wavelength Low
frequency
14. Continuum Spectrum: Light at all wavelengths
15. Absorption Spectrum: Shows dark lines in the spectrum at certain wave- lengths
Produced by a gas cloud in front of a light source
16. Absorption Line: Dark lines in the spectrum at certain wavelengths
Produced when photons are absorbed by electrons and the electrons move from a lower to higher
energy level
17. Emission Line: Bright lines at specific wavelengths Due to
emission of photons from atoms
Produced when electrons jump from higher to lower energy levels
18. Light-Gathering Power: Important quality of a telescope Amount
of light a telescope can gather
19. Angular Resolution: The ability of a telescope to distinguish two nearby light sources
20. Atmospheric Problems: Certain kinds of radiation can't get through the atmos- phere so we
can't see a clear picture from a telescope on the ground
Atmosphere blurs
2/
2 of 11 9/27/2024, 4:23
