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Physics Core > Energy Transfer > Flashcards

Energy Transfer Flashcards

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1
Q

Name the 9 types of energy.

A 
Electrical.
Light.
Sound.
Kinetic.
Nuclear.
Thermal.
Gravitational potential.
Elastic potential.
Chemical.
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2
Q

What is electrical energy?

A

Whenever a current flows.

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3
Q

What is light energy?

A

From the sun, light bulbs etc.

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4
Q

What is sound energy?

A

From loudspeakers to anything noisy.

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5
Q

What is kinetic energy?

A

Anything that is moving.

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6
Q

What is nuclear energy?

A

Released only from nuclear reactions.

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7
Q

What is thermal energy?

A

Flows from hot objects to colder ones.

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8
Q

What is gravitational energy?

A

Possessed by anything which can fall.

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9
Q

What is elastic potential energy?

A

Stretched springs, elastic, rubber bands.

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10
Q

What is chemical energy?

A

Possessed by food, fuels batteries.

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11
Q

What are potential and chemical energy forms of?

A

Stored energy.

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12
Q

Why are gravitational, elastic and chemical energy stored energy?

A

Because the energy is not doing anything, its waiting to happen.
Waiting to be turned into one of the other forms.

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13
Q

What is the conservation of energy principle?

A

Energy can be transferred usefully from one form to another, stored or dissipated, it can never be created or destroyed.

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14
Q

What does dissipated mean?

A

Energy is spread out and lost.

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15
Q

EXAMPLE.

Solar hot water panel.

A

Light to heat.

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16
Q

EXAMPLE.

Falling object.

A

Gravitational to kinetic.

17
Q

When is energy only useful?

A

When it can be converted from one form to another.

18
Q

EXAMPLE.

Batteries.

A

Chemical energy —–> electrical and heat energy.

19
Q

EXAMPLE.

Electrical devices eg television.

A

Electrical energy ——> light,sound, heat energy.

20
Q

EXAMPLE.

Electrical generation eg wind turbines.

A

Kinetic energy —–> electrical and heat energy.

21
Q

EXAMPLE.

Potential energy eg firing a bow and arrow.

A

Elastic potential energy —–> kinetic and heat energy.

Physics Core (37 decks)

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