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22 Cards in this Set
- Front
- Back
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friction
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The force that one surface exerts on another when the two surfaces rub against each other
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static friction
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Friction that acts on objects that are not moving
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sliding friction
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Friction that occurs when one solid surface slides over another
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rolling friction
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Friction that occurs when an object rolls over a surface.
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fluid friction
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Friction that occurs as an object moves through a fluid
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gravity
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The force that pulls objects toward each other
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mass
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The amount of matter in an object
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weight
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The force of gravity on an object at the surface of a planet
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free fall
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The motion of a falling object when the only force acting on it is gravity
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air resistance
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The fluid friction experienced by objects falling through the air
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terminal velocity
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The greatest velocity a falling object can achieve
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projectile
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An object that is thrown
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force
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A push or pull exerted on an object
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newton
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A unit of measure that equals the force required to accelerate 1 kilogram of mass at 1 meter per second per second
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net force
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The overall force on an object when all the individual forces acting on it are added together
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unbalanced forces
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Forces that produce a nonzero net force, which changes an object’s motion
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balanced forces
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Equal forces acting on an object in opposite directions
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inertia
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The tendency of an object to resist any change in its motion
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momentum
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The product of an object's mass and velocity
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law of conservation of momentum
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The rule that in the absence of outside forces the total momentum of objects that interact does not change
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satellite
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Any object that orbits around another object in space
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centripetal force
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A force that causes an object to move in a circle
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