Energy Flashcards

1
Q

The energy a moving object has because of its motion. Its energy of a moving object depends on the objects mass and it’s speed.

A

Kinetic Energy

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2
Q

Stored energy due to its position.

A

Potential Energy

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3
Q

Energy stored by something that can stretch or compress.

A

Elastic Potential Energy

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4
Q

Energy stored in chemical bonds.

A

Chemical Potential Energy

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5
Q

Energy stored by objects due to their position above Earth’s surface. It depends on the objects mass and height above the ground.

A

Gravitational Potential Energy

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6
Q

The total amount of potential and kinetic energy in a system and can be expressed by mechanical energy= potential energy + kinetic energy

A

Mechanical Energy

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7
Q

States that energy cannot be created or destroyed. It means that the total amount of energy in the universe does not change.

A

Law of Conservation of Energy

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8
Q

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

A

Work

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9
Q

The amount of work done in one second. It is the rate at which work is done.

A

Power

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10
Q

A device that makes doing work easier.

A

Machine

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11
Q

The force that applied to a machine .

A

Input Force

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12
Q

The force applied by the machine

A

Output Force

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13
Q

The ratio of the output force to the input force.

A

Mechanical Advantage

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14
Q

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

A

Efficiency

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15
Q

A machine that does work with only one movement of the machine. There are 6 types of simple machines.

A

Simple Machine

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16
Q

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

A

Lever

17
Q

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

A

Pulley

18
Q

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

A

Wheel and Axle

19
Q

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

A

Inclined Plane

20
Q

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

A

Screw

21
Q

An inclined plane with one or two sloping sides. It also changes the direction of the input force.

A

Wedge

22
Q

Two or more simple machines that operate together that form a compound machine

A

Compound Machine