| A | B |
|---|
| speed | the rate at which an object covers distance; For example, it tells how fast a car is moving. |
| velocity | rate of change plus direction; For example, it tells how fast a car is moving and tells the direction (east, west, an angle, etc.) |
| distance | a measurement of the length between two points; For example, you run around a 400 m. track. This tells how far you ran: 400 meters. |
| displacement | the overall change of position of an object; For example, you run around a 400 m. track. You end at the same place you started. This tells your change of position: zero! |
| force | the push or pull on an object |
| newton | the force needed to accelerate one kilogram of mass at the rate of one meter per second squared |
| weight | the measurement of the pull of gravity; It is measured on a scale. How much do you weigh? |
| mass | the measurement of the amount of matter something contains; (density x volume) It is measured by using a balance comparing a known amount of matter to an unknown amount of matter. |
| acceleration | the rate at which an object changes its velocity; You experience this when you ride a bike downhill without using the brakes! |
