Radience

Forces, Motion and Machines

Science

Watch Lesson: Forces, Motion and Machines

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a change in velocity with respect to time
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the force used on a simple machine
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the push or pull exerted on an object
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the force that opposes motion between two surfaces that are touching
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fixed point on which a lever pivots
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the attractive force between all objects that have mass
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a simple machine with a flat, sloped surface
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the tendency of objects to resist any change in motion
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a simple machine that consists of a bar that pivots on a fixed point
Watch lever Simple Definition
a device that uses electrical energy to do work
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a change in an object’s position
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the location of an object
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a simple machine made of a wheel with a rope around it
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a simple machine made of an inclined plane wrapped around a cylinder
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a device that changes a force with one movement, like a lever, inclined plane, wedge, screw, wheel and axle, or pulley
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the distance an object travels per unit of time
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speed and direction of a moving object
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a simple machine made of one or two inclined planes
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measure of the force of gravity on an object
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a simple machine made of a wheel with a rod joined at its center, they rotate together
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the use of force to move an object over a distance, its unit is the Joule (J)
Watch work Simple Definition

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