| A | B |
|---|
| constant velocity | moving without a change in speed or direction |
| inversely proportional | two variables that change in opposite directions |
| theory | long explanation of science facts, universal, upgradeable |
| normal force | support force due to surface contact |
| free fall | falling under the influence of gravity only |
| Newton's 2nd Law of Motion | acceleration is directly prop. to force and inversely prop. to mass(a=F/m) |
| law | law of nature, unchangeable, usually mathematic |
| falling in air | falling with weight and air resistance |
| inertia | the mass of an object, the "want" to stay the same |
| directly proportional | two variables that change the same direction |
| action force | Example: Hammer hits a nail |
| force | a push or pull |
| weight | gravity's pull on your mass |
| Newton's 3rd Law of Motion | Every action force has an equal and opposite reaction force |
| negative acceleration | slowing down |
| volume | the space an object takes up |
| scientific method | a scientific way of organizing your experiment |
| velocity | speed with direction |
| Newton's 1st Law of Motion | An object in motion will stay in motion-moving in a straight line, an object at rest will stay at rest, until acted upon by an outside force |
| technology | the use of science facts to make our lives better |
| net force | the sum of all the forces on an object |
| dynamic equilibrium | all forces are equal...moving |
| static equilibrium | all forces are equal...still |
| air resistance | the force of air that slows you down |
| mass | the atoms that make up any object |
| interaction | mutual forces known as a force pair |
| quantitative | number observation |
| acceleration | a change in velocity |
| Newton | unit of force |
| qualitative | a word observation |
| static friction | friction keeping you still |
| force pair | ball on bat, bat on ball |
| reaction force | Example: Nail hitting the hammer at the same time, same size, opposite direction |
| vector | measurement including number and direction |
| kinetic friction | friction between moving objects |
| positive acceleration | speeding up |
| scalar | measurement with number only |
| speed | how fast an object moves |
| terminal velocity | the fastest an object can fall in air |
| hypothesis | if...then..., educated guess, opinion |
