Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

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.

By signing up, I agree to StudyStack's Terms of Service and Privacy Policy.

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.

Remove ads
Don't know
remaining cards
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
restart all cards

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

Science Exam 2012

Semester Exam Review

How is the periodic table arranged? Groups and Periods
What is an Atomic Number? Total amount of protons in an element
What is Atomic Mass? total protons and neutrons of an element
What does inert mean? Valence electrons are full
What are the subatomic particles? neutrons, protons, and electrons
What is a bohr model? a small model representing protons, electrons, and neutrons
Differences between chemical and physical changes? Chemical forms a new subtance; while physical changes a subtance into a new state
What is a molecule? a team of atoms; can be the same kind of atom
What is a subscript? A number written below and to the right of a chemical symbol.
What is frequency? How many waves pass by in one second.
What are light years? Distance light travels in one years.
Electromagnetic waves Infrared- Temperature Visible light- Light you can see
Potential and Kinetic energy Potential is stored energy and kinetic is energy in motion
H-R Diagram Diagram used to compare brightness to temperature
What is speed? Distance traveled divided by time
What is velocity Speed, time and direction
What are balanced forces? Forces that are pushing or pulling with the same amount of force.
What are unbalanced forces? Forces that are pushing or pulling with a different amount of force.
Created by: tophats14