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Forces
CH.10
Term | Definition |
---|---|
Centripetal force | A force that causes an object to move in a circle |
Rolling friction | Friction that occurs when an object rolls over a surface |
Newton | The SI unit used for the magnitude, or strength, of a force |
Force | A push or pull exerted on an object |
Static friction | Friction that squeezes or pushes the molecules in matter together |
Compression | An elastic force that squeezes or pushes the molecules in matter together |
Balanced forces | Equal forces acting on an object in opposite directions |
Mass | Measure of how much matter is in an object |
Free fall | The motion of a falling object when the only force acting upon it is gravity |
Projectile | An object that is thrown |
Net force | The overall force an object when all the individual forces acting on it are added togther |
Law of Conservation of momentum | The rule that in the absence of outside forces the total mmentum 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 cause an objects velocity to change |
Air resistance | The fluid friction experienced by objects falling through the air |
Gravity | The force that pulls objects toward each other |
Weight | A measure of the force of gravity on an object |
Fluid friction | Friction that occurs as an object moves through a fluid |
Inertia | The tendency of an object to resist any change in its motion |
Satellite | Any object that orbits around another object in space |
Momentum | The product of an objects mass and velocity |
Friction | The force that one surface exerts on another when the two surfaces rub against eachother |