Work Energy Theorem Flashcards

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1
Q

Work done:

A

The product of displacement and the component of the force parallel to the displacement

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2
Q

Gravitational potential energy

A

The energy an object possesses due to its position relative to a reference point .

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3
Q

Kinetic energy

A

The energy an object possesses due to its motion

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4
Q

Mechanical energy

A

The sum of an objects gravitational potential energy and its kinetic energy

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5
Q

Law of conservation of energy

A

States that the total energy in a system cannot be created nor destroyed, only transferred from one form to another.

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6
Q

Principal of conservation of mechanical energy

A

States that in the absence of air resistance or any external force, the mechanical energy of an object is constant

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7
Q

Work- energy theorem

A

States that work done on an object by a net force is equal to the change in kinetic energy of an object

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8
Q

Power:

A

The rate at which work is done

Or

The rate at which energy is transferred

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9
Q

Watt

A

Is the power when one joule of work is done per second

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10
Q

Efficiency

A

The ratio of output power to input power

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