Electrical Principles Topic 3 Flashcards

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1
Q

What is energy?

A

The ability to do work

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2
Q

What is work?

A

The transfer of energy

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3
Q

Who is James Joule

A

He studied energy
he proved work and energy can produce heat

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4
Q

Define chemical energy

A

Energy is released during a chemical reaction
ex. digesting food

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5
Q

Define Electric energy

A

The energy of charged particles, electricity is transfered
ex. Electrical appliances

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6
Q

Define mechanical energy

A

The energy of motion, or potential to move
ex. water in a waterfall

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7
Q

Define thermal energy

A

The total kinetic energy, the faster particles moves, the more kinetic energy they have.
ex. friction

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8
Q

What is the law of conservation of energy

A

Energy cannot be created or destroyed

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9
Q

What is a thermocouple?

A

A device that converts thermal energy to electricity

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10
Q

How does a thermocouple work?

A

Two different metals heat at different rates, the electricity flows from one metal to the other.

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11
Q

What is the Hans Christian Oersted?

A
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12
Q

What did Micheal Faraday prove?

A
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13
Q

Types of magnets:

A
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14
Q

What is an electromagnetic?

A
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15
Q

How does a simple electric motor work?

A
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16
Q

What is a St. Louis Motor?

A
17
Q

What is an armature?

A
18
Q

What is the Commutator

A
19
Q

What are the brushes?

A
20
Q

How does the St. Louis Motor work?

A
21
Q

Define AC and DC and explain how they are most commonly used

A
22
Q

Primary coil

A
23
Q

Secondary coil

A
24
Q

Define Step-up transformers

A
25
Q

Define and explain DC generator

A
26
Q

Define and explain AC generator

A
27
Q

What are the types of generators?

A
28
Q

Define Power

A
29
Q

How do you calculate power?

A
30
Q

Equations relating power:

A
31
Q

How to calculate energy

A