# Physics Terms

## Terms

copy deck

- average velocity
- the change in the displacement of something divided by the corresponding change in time, m/s
- average acceleration
- the change in the velocity of something divided by the corresponding change in time, m/s^2
- constant
- anything that does NOT change within time of interest
- vector
- anything that has a direction and a size or magnitude or number
- scalar
- anything that does NOT have a direction
- time
- what is measured by a clock; i.e. anythign that is periodic, second (s/sec)
- anything
- any one thing or any group of things you thnk about when solving a problem (x)
- distance
- the length of a path traveled
- displacement
- the straight line distance to something from an orgin plus direction, meter (m)
- speed
- disance/time
- per
- divided by
- rate
- rate=x/t. That means that anything that changes with time is a rate.
- mass
- the amount of amtter (electrons, protons, and neutrons) in an object