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Astro 7N PSU Exam 1 Questions And Answers Latest Update
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Astro 7N PSU Exam 1 Questions And Answers Latest Update
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Solution 2024/2025Pepper
Astro 7N PSU Exam 1 Questions And Answers
Latest Update
Newton's 1st Law
An object at rest stays at rest unless acted upon by a force
Newton's 2nd Law
F=ma
Newton's 3rd Law
For every action, there is an equal and opposite reaction
Strength of Gravity
g=M/(R^2)
Force of Gravity
F=(M1M2/(D^2))
Sun's Movement
East to West
Due to Earth's rotation
Phase Order of the Moon
New --> Waxing Crescent --> First Quarter --> Waking Gibbous --> Full --> Waning Gibbous --> Third Quarter --> Waning
Crescent --> New
Full Moon
Sun--Earth--Moon
New Moon
Sun--Moon--Earth
Constellation
Large defined area in the sky
There are 88
Forms of Light
, Solution 2024/2025
Pepper
Gamma, X-Ray, UV, Visible, Infrared, Microwave, Radio
Bluer Color
Short wavelength
High frequency
Redder Color
Long wavelength
Low frequency
Continuum Spectrum
Light at all wavelengths
Absorption Spectrum
Shows dark lines in the spectrum at certain wavelengths
Produced by a gas cloud in front of a light source
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
Emission Line
Bright lines at specific wavelengths
Due to emission of photons from atoms
Produced when electrons jump from higher to lower energy levels
Light-Gathering Power
Important quality of a telescope
Amount of light a telescope can gather
Angular Resolution
The ability of a telescope to distinguish two nearby light sources
Atmospheric Problems
Certain kinds of radiation can't get through the atmosphere so we can't see a clear picture from a telescope on the
ground
Atmosphere blurs
Kepler's 1st Law
The planets orbit the sun in elliptical orbits
Kepler's 2nd Law
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