Science Y8 Energy Flashcards

1
Q

What different types of energy are there

A

Magnetic Kinetic Heat Light Gravitational Chemical Sound Elastic Electrical Nuclear. Most Kids Hate Learning G C S E Energy Names

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2
Q

Can energy be destroyed

A

Energy cannot be created or destroyed only transfered

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3
Q

What is kinetic energy?

A

The energy of a moving object

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4
Q

What is chemical energy?

A

The energy stored in fuel or a battery

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5
Q

What is gravitational energy?

A

The energy stored in an object due to its distance from the ground.

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6
Q

What is elastic energy?

A

The energy stored in a streached or squashed object.

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7
Q

What is heat energy?

A

Heat (or thermal) energy is the energy in something due to its heat.

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8
Q

What is magnetic energy?

A

The energy pulling two or more magnets togeather.

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9
Q

What is nuclear energy?

A

Nuclear energy is energy in the nucleus (core) of an atom.

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10
Q

What are the four pathways.

A

The four pathways are how energy is transfered, they are:

Mechanically
 (when a force acts and something moves)
Electrically 
(When a current flows)
By heating 
(Because of a temperature difference)
By radiation (waves)
(A wave such as light microwaves or sound)
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11
Q

What is energy measured in?

A

J and Kj

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12
Q

What is power measured in?

A

W and Kw

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13
Q

What is 0°Kelvin

A

-273°C

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14
Q

What is power?

A

How fast energy is transfered from one object to another.

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15
Q

What is convection?

A

convection, process by which heat is transferred by movement of a heated fluid such as air or water

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16
Q

What is a fluid?

A

A liquid or gas?

17
Q

Does heat rise?

A

No

18
Q

All objects emit…

A

Infared radiation.

19
Q

What colors are good at absorbing infared radiation.

A

Dark and non reflective colours.

20
Q

What is work?

A

Work(J)= Force(N) x Distance(M)