Work And Energy Vocab Flashcards

0
Q

Efficiency

A

Ratio of the output work done by the machine to the input work done on the machine, expressed as a percentage.

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1
Q

Work

A

Transfer of energy when a force is applied over a distance; measured in joules.

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2
Q

Mechanical advantage

A

Ratio of the output force exerted by a machine to the input force applied to the machine.

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3
Q

Energy

A

The ability to cause change, measured in joules.

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4
Q

System

A

A region or set of regions around which a boundary can be defined.

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5
Q

Kinetic energy

A

Energy a moving object has because of its motion; determined by the mass and speed of the object.

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6
Q

Potential energy

A

Energy that is stored due to the interactions between objects.

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7
Q

Elastic potential energy

A

Energy that is stored by compressing or stretching an object.

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8
Q

Chemical potential energy

A

Energy that is due to chemical bonds.

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9
Q

Gravitational potential energy

A

Energy that is due to the gravitational force between objects.

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10
Q

Law of conservation of energy

A

States that energy cannot be created or destroyed.

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