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CH. 10
Term | Definition |
---|---|
centripetal force | a force that causes objects to move in a circle |
rolling friction | friction that occurs when a object rolls over a surface |
newton | the SI unit used for the magnitude, or strength, of a force |
force | pull or push on a object |
static friction | friction when a object is still |
compression | an elastic force that squeezes or pushes the molecules in matter together |
blananced forces | equal forces acting on a object in opposite directions |
mass | a measure on how much matter is in a object |
free fall | the motion of a falling object when the only force acting on it is gravity |
projectile | a thrown object |
net force | overall forces that are acting upon a object added together |
law of conservation of momentum | the rule that in absence of outside forces the total momentum of objects that interact does not change |
tension | an elastic force that stretches or pulls on the molecules in matter |
sliding friction | friction that occurs when one solid surface slides over another |
unbalanced force | forces that causes and objects velocity to change |
air resistance | the fluid friction experienced |
gravity | force that pulls objects away from eachother |
weight | measure of force of gravity on a object |
fluid friction | friction that occurs when a object moves through fluids |
inertia | the tendency of a object to resist change to its current motion |
satellite | when a object orbits another object in space |
momentum | the product of a objects mass and velocity |
friction | the force that one surface exerts on another when the two surfaces rub against each other |