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Unit 1 Simple Circuits Flashcards

(21 cards)

1
Q

What is a source?

A

A source is where a thing comes from or starts

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2
Q

What is a device ?

A

A device is something which changes one type of energy into a different type of energy

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3
Q

What is a system made up of?

A

A system is made up of many parts

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4
Q

What do these parts do?

A

These parts work together to perform a special function, such as a kettle heating water

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5
Q

What is the role of a circuit?

A

The role of a circuit is to send electricity from the source to the device

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6
Q

What are the three things that an electrical system has?

A

An input source, a device and an output source

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7
Q

Will a system work without these three stages ?

A

No it will not work because the device needs all the materials to work

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8
Q

Name me the three components of a simple circuit

A

A source of energy, a conducting material and a device

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9
Q

Name me some examples of a source of electricity?

A

Mains electricity or a cell or a battery

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10
Q

What is the wire that most people use for a conductor ?

A

This is copper wire

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11
Q

What are the four types of output energy?

A

Heat, light,sound and movement

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12
Q

Give me four examples?

A

Kettle-heat, motor-movement, light bulb-light and a buzzer-sound

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13
Q

Name me a object that can break the flow of electricity in a circuit?

A

A switch

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14
Q

What do electricians use to show electrical circuits?

A

They use diagrams

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15
Q

What do they use instead of drawing a cell or bulb?

A

They use symbols

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16
Q

What are conductors?

A

Conductors are materials that allow electricity to pass through them

17
Q

Why do people not use aluminum as a conductor?

A

Because even though aluminum is cheap it is not a good conductor

18
Q

We do not use gold and silver as conductors why?

A

Because even though they are good conductors they are very expensive

19
Q

Why do we use copper wire as conductors?

A

Because it is a good conductors and it is cheap

20
Q

What are insulators?

A

Insulators are materials that do not pass through electricity

21
Q

Name some insulators?

A

Rubber gloves, plastic cover, glass insulators, ceramic insulators , plastic-coated pliers and porcelain spark plug