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Chp. 10
vocabwords
Term | Definition |
---|---|
force | push or pull |
newton | Issac Newton |
net force | combinations of all forces |
friction | a force that two surfaces rub on each other |
static friction | objects that have friction but are not moving |
sliding friction | occurs when two sliding objects move with eachother |
rolling friction | its less than sliding friction only one slide glides |
gravity | the force that controls matter |
mass | the amount of matter in an object |
weight | gravitational force that makes thing heavy or hard to pick up |
mass and acceleration due to gravity | weight |
free fall | when the only force acting on an object is gravity that is what free fall is |
air resistance | a fluid friction that acts on an object falling through air |
projectile | object that is thrown |
inertia | the tenacity of an object to resist a change in motion |