Busy. Please wait.

Forgot Password?

Don't have an account?  Sign up 

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 email address associated with your account, and we'll email you a link to reset your password.

Remove ads
Don't know (0)
Know (0)
remaining cards (0)
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


Vocab words, key formulas

Absolute zero The lowest theoretical temperature a material can have, where the molecules that make up the material hae no kinetic energy. Absollute zero is reached at 0K or -273C
Acceleration A vector quantity defined as the rate of change of the velocity vector with time
Activity In radioactive substances, the number of nuclei that decay per second. Activity, A, will be larger in large samples of radioactive material, since there will be more nuclei.
Alpha Decay A form of radioactive decay where a heavy element emits an alpha particle and some energy, thus transforming into a lighter, more stable, element.
Alpha Particle A particle, a, which constits of two protons and two neutrons. It is identical to the nucleus of a helium atom and is ejected by heavy particles undergoing alpha decay
Amplitude Measures the amount of energy a system has
Angle of incidence When a light ray strikes a surface, the angle of incidence is the angle between the incident ray and the normal.
Angle of reflection the angle between a reflected ray and the normal
Angle of refraction the angle between and refracted ray and the line normal to the surface
Angular acceleration A vector quantity, a, equal to the rate of change of the angular velocity vector with time. It is tipically given in units of rad/s squared
Angular displacement The net change, (-), in a poin't angular position, (/). It is a scalar quantity
Created by: kk2010