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Design and Technology > Electronic Systems > Flashcards

Electronic Systems Flashcards

1
Q

Explain what a subsystem is

A

a section with a specific role within a system

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2
Q

Explain what a system diagram is

A

a diagram of the interconnection and flow of signals in an electronic system

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3
Q

Draw a system diagram example

A

Input —> Process—>Output

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4
Q

Explain what a sensor is

A

a component that produces a signal in response to a specific physical quantity

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5
Q

Explain what physical quantities are

A

something that can be measured

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6
Q

Explain what a signal is

A

an electrical voltage that is used to represent information

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7
Q

Explain what a microcontroller is

A

a programmable electronic component that adds functionality to a product

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8
Q

Give an example of two products containing a microcontroller and its action

A

kettle - switches on heating element

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9
Q

Explain what a program is

A

a set of instructions to tell a microcontroller how to carry out a task

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10
Q

Explain what embedding is

A

customising a microcontroller to be permanently placed within a product.

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11
Q

Explain what a light sensor is, give an example

A

a light sensing component in an electronic system

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12
Q

Explain what an infrared sensor is

A

a infrared sensing component

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13
Q

What are the two types of infrared sensors, give an example for each

A
  • a simple IR sensor

- a Passive Infrared Sensor(PIR)

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14
Q

Explain what a switch sensor is, give an example

A

a very simple electronic component that can be either off or on.

light switch in a house

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15
Q

Explain what latching is

A

a switch that stays on or off after the button is released.

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16
Q

Explain what momentary is

A

a switch that stays on only while it is held pressed

17
Q

Give an example of a product using light emitting diodes

A

indicator on a control panel

18
Q

Give the standard LED size

A

5mm diameter

19
Q

Explain the difference between a speaker and a buzzer

A

a buzzer will produce a tone when it receives power it cannot not produce music or speech like a loudspeaker

20
Q

Give an example of a product using a speaker

A

a phone

21
Q

Give an example of a product using a buzzer

A

an alarm system

22
Q

Explain what a motor is

A

a component that produces rotary motion when it receives power

23
Q

Give the type of motion produced by an electric motor

A

rotary

24
Q

Explain what a microcontroller is

A

a programmable electric component that adds functionality to a product.

25
Q

Give an example of two product containing a microcontroller and its action

A

smart fridge - can sense what is stored inside it and re-order stock when it is needed

kettle - microcontroller senses when the water has reached boiling point

26
Q

Give an example of an electric motor

A

refrigerator

Design and Technology (8 decks)

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