Energy Flash Cards

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1
Q

Kinetic Energy

A

The energy a moving object has because of motion

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2
Q

Potential Energy

A

Stored energy due to position

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3
Q

Elastic Potential Energy

A

energy stored by something that can stretch or compress such as a rubber band or spring

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4
Q

Chemical Potential Energy

A

Energy stored in chemical bonds

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5
Q

Gravitational Potential Energy

A

Energy stored by objects due to their position above Earth’s surface

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6
Q

Mechanical Energy

A

It is the total amount of potential and kinetic energy in a system and can be expressed by ME = PE +KE

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7
Q

Law of Conservation Energy

A

States that energy cannot be created or destroyed

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8
Q

Work

A

The transfer of energy that occurs when a force makes an object move

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9
Q

Power

A

The amount of work done in one second

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10
Q

Machine

A

A device that makes doing work easier

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11
Q

Input Force

A

The force that is applied to the machine

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12
Q

Output Force

A

The force applied by the machine

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13
Q

Mechanical Advantage

A

Calculated by dividing the input distance by the output distance

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14
Q

Efficiency

A

A measure of how much of the work put into a machine is changed into useful output work by the machine

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15
Q

Simple Machine

A

A machine that does work with one simple movement

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16
Q

Lever

A

A bar that is free to pivot or turn around a fixed point

17
Q

Pulley

A

A grooved wheel with a rope, chain, or cable running a long the groove

18
Q

Wheel and Axle

A

A simple Machine consisting of a shaft or axle attached to the center of a larger wheel, so that the wheel and axle rotted together

19
Q

Inclined Plane

A

A sloping surface, such as a ramp that reduces the amount of force required to do work

20
Q

Screw

A

An inclined plane that wrapped in a spiral around a cylindrical post

21
Q

Wedge

A

an inclined plane with one or two sloping sides

22
Q

Compound Machine

A

two or more simple machines that operate together