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Chapter 10 Forces
Term | Definition |
---|---|
Net Force | The overall force on an object when all the individual forces acting on it are added together. |
Law of conservation of Momentum | The rule that in the 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 surfaces slides over another |
Unbalanced Forces | Forces that cause an object's velocity to change |
Air resistance | The fluid friction experienced by objects falling through the air |
Gravity | The force that pulls objects toward each other |
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 |
Newtons | The SI unit used for the magnitude, or strength, of a force |
weight | A measure of the force of gravity on an object |
Static Friction | Friction that acts on objects that are not moving |
Compression | An elastic force that squeezes or pushes the molecules in matter together |
Inertia | The tendency of an object to resist any change in its motion |
Mass | A measure of how much matter is in object |
Momentum | The product of an object's mass and velocity |
Free Fall | The motion of a falling object when the only force acting on it is gravity |
Friction | The force that one surface exerts on another when the two surfaces rub against each other |
Projectile | An object that is thrown |
Fluid Friction | Friction that occurs as an object moves through a fluid |
Force | A push or pull exerted on an object |
Balanced Forces | Equal forces acting on an object in opposite directions |
Satelite | Any object that orbits around another object |