Chapter 3/4 | Motion & Forces | Parsia
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Vocab words from McGraw Hill 8th Grade Motion and Forces (Chapters 3 and 4). ⠀⠀⠀⠀
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10 Terms
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gravity
the force that objects exert on each other because of their masses
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weight
the force of gravity on an object
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orbit
the elliptical path one body follows around another body
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friction
a force that resists motion between two surfaces in contact
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fluid
a substance that can flow easily, such as a gas or liquid
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air resistance
the fluid friction due to air
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work
The use of force to move an object over a distance
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Joule
a unit used to measure energy and work. One joule is done when a force of one Newton moves and object one meter
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power
the rate at which work is done
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Watt
the unit used to measure power; one watt is equal to one joule of work done in one second
Note 
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