| A | B |
|---|
| inertia | tendency of an object to remain at rest or in motion |
| Newton's 1st Law | an object will stay in motion or at rest unless a net force acts on it |
| force | a push or a pull in particular direction |
| Newton | units used to measure force |
| balanced forces | when 2 forces are equal in size but are opposite in direction |
| net force | the combination of all forces acting on an object (usually one force is bigger than the other (unbalanced) |
| friction | the force that opposes motion between 2 surfaces that are touching |
| air resistance | air molecules create their own type of friction (or drag) |
| gravity | the force that pulls all objects to Earth and each other |
| Newton's 2nd Law | the acceleration of an object is directly dependent on the mass of the object and the force acting on it. |
| calculating force | = mass x acceleration or F=MxA |
| calculating acceleration | = force/mass, or A=f/m |
| calculating mass | =force/acceleration or M=f/a |
| Newton's 3rd Law | for every action force there is an equal and opposite reaction force |
| momentum | is the product of an objects mass and velocity (M x V) |
| pressure | the amount of force applied to an area (measured in psi or atmoshperes) |
| buoyant force | the upward force of water on an object |
