Busy. Please wait.
Log in with Clever

show password
Forgot Password?

Don't have an account?  Sign up 
Sign up using Clever

Username is available taken
show password

Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
Didn't know it?
click below
Knew it?
click below
Don't Know
Remaining cards (0)
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how



What is the largest moon in our solar system? Ganymede
Which moon has the most geological activity? Io
What is responsible for the tremendous volcanic activity on Io? Tribal Heating
What is the jovian moon with the thickest atmosphere? Titan
Saturn's rings are composed of... Tons of individual particles of ice and rock
Why can we see Saturn's rings? Light from the sun is reflected and scattered off the particles in the rings.
Do all of Saturn's rings orbit at the same rate? NO, particles in the inner rings orbit faster than particle in the outer rings
The tail of a comet is formed by... Interactions with light and solar wind
Coma Bright spherical part of a comet observed when close to the sun.
Plasma Tail Stretches directly away from the sun.
Frozen portion of a comet Nucleus.
Smallest Doppler Shift is equal to... Weakest gravitational force.
Astrometric technique measures Positions of a star in the sky.
Transit technique measures Slight, periodic, dimming of a star (Best for finding Earth sized planets soon).
Discovering planets through the Doppler technique requires.. obtaining and studying many spectra from the same star
The keepler Mission Currently searching for planet transits around some 100,000 stars
GAIA Astronomy Mission Being designed to measure small changes in stellar positions. May help us find many extrasolar planets
If the Sun was the size if a grapefruit Earth is... The size of a pin top 15m away
If the Sun is the size of a grapefruit Pluto is... 1 mile away
1Ly = ? AU 1Ly=9.46x10^12km 1AU=1.49x10^8Km ................. 9.46x10^12/1.49x10^8 = 6.35x10^4 AU/Ly
Force of Gravity for Earth = ? Fg=G Ma1*M2/r^2 ................ (6.67x10^-11)(5.97x1024)(100kg) / 6378000(turned into m)^2 ANSWER: 979m/kg*s^2
Created by: Mlkihorany
Popular Science sets




Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
restart all cards