Starter quiz
- Match the terms with the correct definition.
- Voltage⇔the electromotive force ✓
- Current⇔the flow of electrons ✓
- Resistance⇔the opposition to the flow of current ✓
Identify this component- 'LED' ✓
- What are the advantages of modelling circuit designs using CAD?
- quick ✓
- inexpensive as you don't need to buy all the components ✓
- allows simulation and testing ✓
- expensive as you need to buy the components
- operator skill required
-
- Resistors are measured in ohms but they do not have values printed on them. How can we distinguish the value?
- 'coloured bands' ✓
- Voltage is measured volts; what is current measured in?
- currents
- amps/amperes ✓
- ohms
- electrons
-
- When designing circuits, component symbols are used. Explain why.
- easy to interpret ✓
- easy to replicate ✓
- quicker to draw ✓
- allows for individual creativity
- difficult to copy
-
Exit quiz
- Match the equation to the concept from Ohm's law.
- Voltage =⇔I x R ✓
- Current =⇔V/R ✓
- Resistance =⇔V/I ✓
- 'The directional flow of electrons from one pole to another' is a definition for?
- polarity ✓
- Ohm's law
- resistance
- current
- voltage
-
- Which of these components are polarised?
- LDR
- LED ✓
- Battery ✓
- Resistor
- Switch
-
- Which component responds to a small current flowing to the base which then enables a large current to flow between the collector to the emitter?
- 'transistor' ✓
- Match the circuit board material with its function.
- copper⇔conductor ✓
- GRP⇔insulator ✓
- When soldering, it is important to assess the potential hazards and minimise risk. What is this process called?
- 'risk assessment' ✓
Worksheet
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Presentation
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Video
Lesson Details
Key learning points
- Voltage, current and resistance are the key concepts when designing electronic systems.
- Input, process and output components are used to construct electronic systems.
- CAD and breadboarding are ways of modelling an electronic system in order to test it.
- Printed circuit boards are used in electronic products.
Common misconception
Components all work however they are positioned circuit.
Some components are polarised and only work if they are the correct way round.
Keywords
Ohm's law - The relationship between voltage, current and resistance
Breadboard - A device used to plug in electrical components and test circuits
Polarity - The directional flow of electrons from one pole to another
Resistance - The opposition to the flow of current
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