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.
We do not share your email address with others. It is only used to allow you to reset your password. For details read 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.
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

Chapter 11 Vocab

Physical Science

Frame of Reference System of objects that are not moving with respect of one another.
Relative Motion Movement in relation to a frame of reference.
Resultant Vector Sum of two or more vectors.
Speed Ratio of the distance an object moves to the amount of time the object moves.
Average Speed Total distance traveled, divided by the time it takes to travel that distance.
Instantaneous Speed The rate at which an object is moving at a given moment in time.
Velocity The speed and direction in which an object is going.
Acceleration Rate at which velocity changes.
Free Fall Movement of an object toward Earth solely because of gravity.
Constant Acceleration Steady change in velocity.
Linear Graph Displays data from straight-line parts.
Nonlinear Graph Curve connects the data points that are plotted.
Distance Length of a path between two points.
Created by: vanessa.sarver