click below
click below
Normal Size Small Size show me how
Sasser S8P5a
Physical Science
| Term | Definition |
|---|---|
| inertia | the tendency of an object to resist being moved or, if the object is moving, to resist a change in speed or direction until an outside force acts on the object |
| mass | a measure of the amount of matter in an object |
| gravity | a force of attraction between objects that is due to their masses |
| friction | a force that opposes motion between tow surfaces that are in contact |
| distance | an object travels is the length of the path it takes |
| balanced forces | are two forces acting in opposite directions on an object, and equal in size |
| unbalanced forces | are forces that cause a change in the motion of an object |
| gravitational forces | is a force that attracts any object with mass. Every object, including you, is pulling on every other object in the entire universe! |
| resistance | In electricity, a measurement of the difficulty encountered by a power source in forcing electric current through an electrical circuit, and hence the amount of power dissipated in the circuit. Measured in ohms. |
| action force | force acting in one direction |
| reaction force | force acting in opposite directions |
| gravitational acceleration | is the acceleration on an object caused by force of gravitation |