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hi Flashcards

scvince

1
Q

kinetic energy

A

Kinetic energy is the energy a moving object has because of its motion

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2
Q

Potential energy

A

Stored energy due to potential is called potential energy

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3
Q

Elastic potential energy

A

elastic potential energy is energy stored by something that can stretch or compress and such as a rubber band or spring

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4
Q

chemical potential energy

A

Energy stored in chemical bonds is chemical potential energy

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5
Q

Gravitational potential energy

A

Anything I can fall has stored energy called gravitational potential energy

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6
Q

Mechanical energy

A

Is the total amount of potential in kinetic energy in a system and can be expressed by this equation

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7
Q

Law of conservation of energy

A

States that energy cannot be created or destroyed

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8
Q

work

A

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

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9
Q

Power

A

Is the amount of work done in one second

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10
Q

Machine

A

Is a device that makes work easier

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11
Q

Input force

A

The force that is applied to the machine is called

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12
Q

Output force

A

The force applied to by the machine is called

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13
Q

Mechanical advantage

A

The ratio of the output force to the input force is the mechanical advantage of a machine

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14
Q

Efficiency

A

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

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15
Q

Simple machine

A

Is a machine that does work with only one movement of the machine

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16
Q

lever

A

Is a bar that is free to Pivot or turn around it if it’s point

17
Q

pulley

A

Is a grooved wheel with a rope chain or cable running along the groove

18
Q

Wheel and axle

A

Is a simple machine consisting of a shaft or axle attached to the center of a larger wheel

19
Q

Inclined plane

A

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

20
Q

Screw

A

Is an inclined plane wrapped in a spiral around a hydraulic post

21
Q

Wedge

A

Is an inclined playing with one or more juice sloping sides

22
Q

Compound machine

A

Two or more simple machines that operate together

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