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Forces
Term | Definition |
---|---|
centripital | a force that causes an object to move in a circle |
rolling | friction that occurs when an object rolls over a surface |
newton | the S1 unit used for magnitude, or strength, of a force |
force | a push or pull exerted on an object |
static | friction that acts on objects that are not moving. |
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 | a measure of 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 | an object that is thrown |
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 surface slides over another |
unbalanced force | forces that causes an object's velocity to cahnge |
air resistance | the fluid friction experienced by objects falling through the air |
friction | force that two surfaces exert on each other when rub together |
fluid friction | solid object goes through a fluid |
gravity | force that pulls objects toward each other |
weight | measure of gravity on object or person |
inertia | tendency of an object to resist change in motion |
momentum | characteristic of a moving object |
satellite | any object that orbits around another object in space |