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Energy Stores Flashcards

(10 cards)

1
Q

What does ‘work done’ mean?

A

Energy transferred

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2
Q

What is a group of objects/matter called?

A

A system

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3
Q

What are the four methods of transferring energy?

A

Mechanically, electrically, by heating or by radiation

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4
Q

What is the difference between a closed system and an open system?

A

An open system can transfer energy with the outside world, while a closed system cannot

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5
Q

What are the two main types of work done?

A

Mechanical and electrical

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6
Q

How is energy transferred to the nuclear store?

A

By breaking atoms apart

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7
Q

What is an object’s gravitational energy determined by?

A

Its position in a gravitational field

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8
Q

How is energy transferred in a closed system?

A

Energy can be transferred within the system, but the overall change is always zero

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9
Q

How is energy converted by a stereo?

A

Electrical to sound energy

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10
Q

How is energy converted by an oven?

A

Electrical to thermal energy in the form of radiation waves and convection currents

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