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Science Test ( 25/02/2022 ) > Electrical Functions And Components > Flashcards

Electrical Functions And Components Flashcards

1
Q

What is a function ?

A

A job

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2
Q

What is a component

A

A part or peice

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3
Q

What is power supply ?

A

The function that provides the energy to make the circuit flow. Gives the electrons a push.

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4
Q

What are three components that supply power

A

Batteries, outlets, photovoltaic cells

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5
Q

Draw a battery symbol

A

➖| 1➖

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6
Q

Draw a outlet symbol

A

➖⭕️<i>➖</i>

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7
Q

Draw a photovoltaic cell symbol

A

➖|)⭕️➖

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8
Q

What is conduction ?

A

The fuction that allows electrons to flow through

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9
Q

What is a component of conduction

A

Wires

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10
Q

Draw a wire

A

➖

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11
Q

What is instillation

A

The function that stops electrons from flowimg tbrough the circuit

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12
Q

What are a few components of an instulater

A

Rubber, plastic, etc

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13
Q

What is protection

A

The function thay can automatically cut current flow ( in case of overheating wtc) prevents fire or electric shock

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14
Q

Draw the fuse symbol

A
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15
Q

What are two components of protection

A

A fuse and a breaker

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16
Q

What happens w a fuse ? How does ut work ?

A

When the current is to high the filament melts &prevemts electric currents to flow. A fuse needs tp be replaced

17
Q

What happens w a breaker ! How work?

A

Qhen current high the bimetallic strip gets hot n bends, preventing an electric current to flow. Reuseable

18
Q

What is resistance?

A

The function (by a resistor) designed to limit the flow of electrons through the curcuit

19
Q

What is a component of the function resistance?

A

A resistor

20
Q

Draw a resistor symbol

A
21
Q

High resistance =

A

Low current

22
Q

Low resistance =

A

High current

23
Q

What is resistance measured in ?

A

Ohms ( ♎️)

24
Q

How do u calculate the resistance? W bands ? ( step by strp)

A

First band = digit
Second band = digit
Third band = zeros
Fourth band = tolerence (%)

Ex: 10% of 75 = 7.5

Max: 75+7.5 = 82.5
Min: 75-7.5 = 67.5

25
Q

What is a control

A

It the fuction that can open and close a circuit

26
Q

If its a closed circuit does the electrons flow through

A

Yes

27
Q

If its an open circuit does the electrons flow theough?

A

No

28
Q

What are a few components of the function control

A

Different switches, aka rocker switch, push button switch, magnetic switch

29
Q

What is the transformation of energy?

A

Its the process in which electrical energy transforms into another form of energy. Ex heating (electric- thermal) light (electric- radiant)

30
Q

What are a few components of transformation of energy

A

Heating element, motor, light bulb

31
Q

Draw a motor symbol

A
32
Q

Draw a heating element symbol

A
33
Q

Draw three different light bulbs symbols

A

Science Test ( 25/02/2022 ) (7 decks)

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