| A | B |
|---|
| FORCE | a push or a pull that causes an object to change its shape or motion |
| VECTOR | an arrow that represents the amount of force and direction in which a force is exerted |
| NEWTON | the basic metric unit of force |
| WEIGHT | a force caused by the pull of GRAVITY on an object's MASS |
| POWER | describes how fast work is done; work divided by time (W/t) |
| JOULE | the basic metric unit of work or energy; work done when 1 newton is exerted through 1 meter |
| WATT | metric unit of POWER; 1 joule of work is done in 1 second |
| FRICTION | force that resists movement; apparent when materials rub |
| LUBRICANT | material that reduces friction; oil, grease, water, graphite, etc. |
| WORK | a force moved through a distance; FORCE x DISTANCE (Fxd) |
| ENERGY | the ability to do WORK |
| LAW of CONSERVATION OF ENERGY | Energy cannot be created or destroyed but can be changed in form |
| GRAVITY | a pulling force exerted by all matter based on its mass and distance from another object |
| ROLLING FRICTION | friction present whenever objects roll; wheels, ball bearings, rollers, etc. |
| SLIDING FRICTION | caused by 2 solid objects rubbing against each other |
| FLUID FRICTION | friction force produced by an object moving through a gas or liquid |
| FLUID | any gas or liquid |
| WORK FORMULA | W = F x d |
| POWER FORMULA | P = W / t |
| MASS | the amount of matter in an object or substance (measured in grams) |
