Stock forms (AQA GCSE Design and Technology): Flashcards
📚Flashcards
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Practise the cards
15 cards from this deck
Electronic system function
Electronic system function
Takes energy from input, processes signal, powers output
What does PCB stand for?
What does PCB stand for?
Printed circuit board
Copper pathways on PCBs called
Copper pathways on PCBs called
Tracks
Two common PCB substrate materials
Two common PCB substrate materials
GRP and phenolic resin
GRP substrate advantage
GRP substrate advantage
More durable but more expensive than phenolic resin
Why do PCBs appear green?
Why do PCBs appear green?
Protective lacquer coating
What is voltage?
What is voltage?
Energy to push electric charge, measured in volts (V)
What is current?
What is current?
Quantity of charge flowing, measured in amperes (A)
UK mains voltage
UK mains voltage
240V
AA/AAA battery voltage
AA/AAA battery voltage
1.5V
1A equals how many mA?
1A equals how many mA?
1000mA
CNC router method benefit
CNC router method benefit
High precision and repeatability
Photo-resist process strength
Photo-resist process strength
Complex designs with fine details
Stripboard features
Stripboard features
Pre-made parallel copper tracks on GRP
Etching chemical for PCBs
Etching chemical for PCBs
Ferric chloride