Energy and Electricity Flashcards

(29 cards)

1
Q

What is Energy?

A

A source of something that gives the ability of something to work

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2
Q

Can Energy be created or destroyed?

A

No

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3
Q

What are the 8 types of Energy?

A

Kinetic Energy, Gravitational Potential Energy, Chemical Energy, Thermal Energy, Nuclear Energy, Electrostatic Energy, Elastic Potential Energy, Magnetic Energy

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4
Q

What is Kinetic Energy?

A

Any moving object has Kinetic Energy

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5
Q

What is Gravitational Potential Energy?

A

Any object positioned higher than the ground has this energy

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6
Q

What is Chemical Energy?

A

This is where energy is stored in substances, which when released can be used

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7
Q

What is Thermal Energy?

A

Any hot object has Thermal Energy

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8
Q

What is Nuclear Energy?

A

Any radioactive substance has Nuclear Energy

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9
Q

What is Electrostatic Energy?

A

This is found in Thunderclouds or charged objects

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10
Q

What is Elastic Potential Energy?

A

This is seen in any object which is stretched or compressed

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11
Q

What is Magnetic Energy?

A

A type of energy that a magnetic object has in a magnetic field.

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12
Q

What is the unit we use to measure energy?

A

The Joule (J) or Kilojoule (KJ).

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13
Q

What are the non-renewable types of energy?

A

Fossil Fuels, Nuclear Power and Natural Gas

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14
Q

What are the renewable types of energy?

A

Hydroelectric Power, Geothermal Power, Biofuels, Tidal Power, Solar Power and Wind Power

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15
Q

What is Hydroelectric Power?

A

A dam traps rainwater which floods a valley, forming a reservoir which pours into a turbine that powers a generator.

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16
Q

What is Geothermal Power?

A

Uses hot rocks under the Earth’s surface to extract steam, which makes electricity

17
Q

What is Biofuel?

A

They burn the plants to release the energy stored in them

18
Q

What is Tidal Power?

A

As the tides rise, this powers turbines turning it into electricity

19
Q

What is Solar Power?

A

They capture the Sun’s heat and turn it into energy

20
Q

What is Wind Power?

A

Wind passes through a wind turbine, spinning it which makes electricity.

21
Q

Which material conducts electricity better: Metal or Plastic?

22
Q

Which material charges up better: Metal or Plastic?

23
Q

What are the positives and negatives called?

A

Protons (positive) and Electrons (negative)

24
Q

What moves: Protons, Electrons or both?

A

Only Electrons

25
What is an object called if it has the same number of Protons and Electrons?
Neutral
26
Would a partly completed circuit allow charge to flow?
No
27
What happens to the current in a Parallel Circuit?
The Current is shared between the components
28
What happens to the current in a Series Circuit?
The Current is the same everywhere
29
What terminals does a cell have?
A Negative and Positive