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If you were to lift two equally heavy loads of laundry up a flight of stairs, how much work would you do compared to lifting just one load of laundry up the same stairs? |
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If you were to lift one load of laundry up two flights of stairs how much work do you do compared to lifting one load of laundry up only one flight of stairs? |
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A quantity that has magnitude |
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If you were to lift two eqully heavy loads of laundry up a flight of stairs, how much work do you do compared to lifyting just one load of laundry up two flights of stairs? |
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Potential energy is the energy an object has because of its... |
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A quantity that has Magnitude and Direction |
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What are 3 possible units for speed? |
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Miles per hour, light years per century, kilometer per hour |
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In the absence of air resistance, objects fall at a constant _______ |
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What is an objects instantaneous speed at the top of its path? |
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How fast does a free falling object fall after 9 seconds? |
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If you drop a hammer and a piece of paper in a vacuum, which will hit the ground first? |
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Both will both hit it at the same time |
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in the 1500s, an astronomer saved that the Earth revolves around the sun |
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An objects tendency to stay in motion or at rest |
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ToF: An object on Earth will weigh less on the Moon |
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True. Mass or Volume would say the same |
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ToF: Friction always works against an objects motion |
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An object that is going in a straight line and has a constant speed has zero _______ |
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An object in motion will stay in motion unless acted upon by an outside force. Also known as the Law of Inertia |
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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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For every action, there is an equal or opposite reaction |
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Another word for centrifugal force is _________ |
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Straight line which an object may rotate or revolve |
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A center-seeking force that causes an object to move in a circular path |
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An apparent outward force on a rotating or revolving object; it is fictitious |
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Motion of an object turing around an axis outside the object |
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The spinning motion of an object turning around an axis inside the object |
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The number of rotations or revolutions per unit of time |
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