| A | B |
|---|
| potential energy | stored energy |
| buoyant force | upward force on objects in a fluid |
| pascal | unit used to measure pressure |
| momentum | measure of mass in motion |
| mechanical energy | combination of kinetic and potential energy of an object |
| force | push or pull |
| air resistance | friction due to air |
| orbit | revolve around |
| kinetic energy | energy of motion |
| friction | force that resists the motion between two surfaces |
| inertia | resistance of an object to a change of speed or direction |
| weight | force of gravity on an object |
| collision | when two ojbects in close contact exchange energy or momentum |
| joule | unit used to measure energy and work |
| centripetal force | any force that keeps an object moving in a circle |
| net force | overall force acting on a certain area |
| fluid | substance that can flow easily |
| gravity | force that objects exert on each other because of their masses |
| work | use of force to move an object |
