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21 Cards in this Set
- Front
- Back
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Speed
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The distance and object travels per unit time
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Velocity
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Speed and direction of an object
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Weight
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The gravitational force exerted on an object
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Gravity
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An attractive force between any two objects that depends on the masses of the objects and the distance between them
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Force
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A push or a pull on an object
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Net Force
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the overall force of an object when two or more forces are acting on one object
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Balanced Force
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When two forces equal forces are pushing on the same object in opposite directions
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Acceleration
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The rate of change in velocity
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Unbalanced Force
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Two unequal forces pushing on an object in opposite directions
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Newtons 1st Law
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An object moving at constant velocity keeps moving at that velocity unless acted upon by an unbalanced force
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Newtons 2nd Law
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The acceleration of an object is in the same direction as the net force on the object
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Friction
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The force that opposes the sliding motion of two surfaces that are touching each other
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Inertia
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The tendency of an object to resist any change in motion
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Newtons 3rd Law
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For every action there is an equal and opposite reaction
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Terminal Velocity
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The highest speed a falling object will reach
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Static Friction
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The frictional force that PREVENTS two surfaces from sliding past each other
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Sliding Friction
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The frictional force that OPPOSES the motion of two surfaces sliding past each other
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Rolling Friction
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The frictional force between a rolling object and the surface it rolls on
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Newton
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the standard unit of force in the International System of Units (SI), equal to the force that produces an acceleration of one meter per second per second on a mass of one kilogram.
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Deceleration
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to decrease the velocity
to slow the rate of increasing |
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Freefall
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(of parachutists) to descend initially, as for a designated interval
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