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36 Cards in this Set
- Front
- Back
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Thermal
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Wasted heat that warms the air and waters of the earth
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Conservation
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saving
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Theory
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An idea based on an observation or an experiment.
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spring constant
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The amount a spring will stretch for each unit of force added.
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Potential
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Stored energy.
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Gravity
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The force that pulls down toward the center of the earth!
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Kinetic
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Energy in moving things.
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Energy
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The ability to do work.
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Gram-centimeter, Kilogram-meter, Foot-pound
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Units of work.
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Friction
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A force that interferes with the movement of one surface over another.
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Streamlined
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Shaped to have little air friction.
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Asbestos
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A material used to make brakes!
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Lever
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A simple machine.
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Fulcrum
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The point where a lever is supported.
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Effort Arm
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The side of a lever you use force on.
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Effort
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The force used on a lever.
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Resistance
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The object moved by a lever
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Resistance Arm
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The end of the lever that moves the resistance!!!
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Inclined Plane
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A flat surface that is tilted.
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Mechanical Advantage (M.A.)
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The number of times a machine multiplies the effort.
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Pulley
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A simple machine made of a wheel and an axle.
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Axle
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A rod that a wheel turns on.
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Fixed Pulley
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A pulley that does not move.
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Movable Pulley
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A pulley that moves.
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Ideal
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The M.A. a machine would have if there were no friction.
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Actual
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The M.A. a machine really has.
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Efficiency
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The percent of useful work obtained from a machine.
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Vacuum
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An empty space.
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Weight
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The pull of gravity on an object.
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Mass
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The amount of material in an object.
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Pressure
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Force on a certain amount of surface.
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Manometer
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An instrument used to measure pressure.
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Dense
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Heavy for its volume.
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Density
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Mass of a certain volume of material.
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Archimedes' Principle
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The fact that the loss of weight of an object in water is equal to the weight of the displaced water!
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Displaced
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The amount of water pushed out of the way by an object.
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