The Universe
When measuring the distance of our galaxy to the next galaxy what unit of measurement should you use?
Light-Years
What do the terms luminosity and magnitude mean?
Brightness
Which planet is hotter Mercury or Jupiter? Why?
What is the difference between the Heliocentric Model and the Geocentric Model of the solar system?
Helio - Sun is the center
Geo - Earth is the center
What makes the different waves of the EM spectrum different?
The amount of energy/wavelength/frequency
Put the following in order from largest to smallest:
Planets, Stars, Galaxy, Universe, Moons, Solar System
Universe, Galaxy, Solar System, Stars, Planets, Moons
Because the sun is closer (apparent magnitude/brightness)
Which planet is the hottest? Why?
Venus - It's atmosphere traps almost all heat that enters.
Explain the position of the Earth, Sun, and Moon during a solar eclipse and a lunar eclipse.
Lunar - Sun, Earth, Moon or Moon, Earth, Sun
Solar - Sun, Moon, Earth or Earth, Moon, Sun
Which EM Wave has the lowest amount of energy?
Radio waves
What are galaxies made of? (3 things, if you are close Dr. Petit will determine accuracy)
Stars, Dust, Gas
Where (what layer) do stars produce their energy?
The Core
Which planet has the highest gravity? Why?
Jupiter - It's the biggest
Explain what a neap tide is (positions of Earth, moon, and sun, and what it does to the tidal range.)
Neap - right angle and low tidal range
Which EM wave has the highest amount of energy?
Gamma rays
Name two objects you would measure distance in AU's.
Answer will vary must be in the same solar system.
Which layer of the sun is visible to us when we look at it?
Photosphere
Which planet revolves around the sun faster, Venus or Neptune? Why?
Venus - It is closer to the sun
Explain what a spring tide is (positions of Earth, moon, and sun, and what it does to the tidal range.)
straight line and high tidal range
Which EM wave has more energy? Infrared or X-Rays
X-Rays
What is the answer to life, the universe, and everything?
42
Why do sunspots appear to move?
The sun is rotating
Why do gas giants rotate faster than terrestrial planets?
Gas is less dense
Why does everything orbit the sun?
It is the largest object and has the highest gravity.
Put the waves in order of longest wavelength (lowest energy) to shortest wavelength (highest energy)
radio, micro, infrared, visible, uv ray, x-ray, gamma