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17 Cards in this Set
- Front
- Back
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the transfer of energy to a body by the application of a force that
causes the body to move in the direction of the force |
work
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a quantity that measures the rate at which work is done or
energy is transformed |
power
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a quantity that expresses how much a machine multiplies force or distance
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mechanical advantage
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measurement of work, 1 kg x m2/s2
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joule
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the amount of power needed to do one joule of work in one second
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watts
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the capacity to do work
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energy
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the energy that an object has because of the position, shape, or condition of the object
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potential energy
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the energy of an object that is due to the object's motion
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kinetic energy
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potential energy that results from the gravitational attraction between objects
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gravitational potential energy
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the amount of work an object can do because of the object's kinetic and potential energies
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mechanical energy
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used by plants to turn the energy in sunlight into chemical energy
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photosynthesis
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energy that results from the location of charged particles in an electric field
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electrical energy
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measurement of food energy
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calorie
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energy that travels from the sun to earth across empty space in the form of electromagnetic waves
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light energy
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one of the six basic types of machines, which are the
basis for all other forms of machines |
simple machines
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point that a lever turns around
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fulcrum
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a machine made of more than 1 simple machine
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compound machine
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