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22 Cards in this Set
- Front
- Back
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Speed
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The distance an object travels in one unit of time
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Velocity
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Speed in a given direction
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Acceleration
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The rate at which velocity changes
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Force
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A push or pull exerted on a force
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Balanced Forces
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Equal forces acting on an object in opposite directions
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Net Force
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The overall force on an object when all the individual forces acting on an object are added together
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Unbalanced Forces
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A nonzero net force, which changes am object's motion
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Normal Force
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the support force exerted upon an object that is in contact with another stable object.
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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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Inertia
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The tendency of an object to resist any chance in its motion
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Gravity
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The force that pulls objects toward e each other
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Friction
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The force that one surface exerts on another when the two rub against each other
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Sliding Friction
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Friction that occurs when one solid surface slices over another
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Rolling Friction
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Friction that occurs when an object runs over a surface
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Air Resistance
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The fluid friction experienced by objects falling through the air
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Fluid Friction
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Friction that occurs as an object moved through a fluid
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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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Law of Universal Gravitation
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Any two bodies in the universe attract each other with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between them.
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Newton's First Law Of Motion
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An object at rest will remain at rest unless acted on by an unbalanced force. An object in motion continues in motion with the same speed and in the same direction unless acted upon by an unbalanced force. (Law of Inertia)
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Newton's Second Law of Motion
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Acceleration is produced when a force acts on a mass. The greater the mass (of the object being accelerated) the greater the amount of force needed (to accelerate the object). |
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Newton's Third Law of Motion
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For every action there is an equal and opposite re-action.
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