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- How does electricity work?
1. Describe what current is and give its symbol (I) and unit of measurement (amps).
2. Describe the difference between alternating current (AC) and direct current (DC)
3. Describe what voltage is and give its symbol (V) and unit of measurement (volts)
4. Describe what resistance is and give its symbol (R) and unit of measurement (ohms).
5. Evaluate an analogy that communicates the difference between current, voltage and resistance.
MONDAY P5 L3
MONDAY P5 L3
PRACTICAL 1.1 Static Electricity Review Stations
https://www.riskassess.com.au/risk_assessment/8639633PRACTICAL 1.1 Static Electricity Review Stations
TUESDAY P3/4 MO4
TUESDAY P3/4 MO4
5. Evaluate an analogy that communicates the difference between current, voltage and resistance.
TASK 1.3
TASK 1.3
Answer the following questions
Describe what is happening in the diagram.
What is the source of the wealth?
Why does the wealth fall off?
BANK ANALOGY FOR ELECTRICITY.docx1. Describe what current is and give its symbol (I) and unit of measurement (amps).
3. Describe what voltage is and give its symbol (V) and unit of measurement (volts)
4. Describe what resistance is and give its symbol (R) and unit of measurement (ohms).
THURSDAY P2 L3
THURSDAY P2 L3
5. Evaluate an analogy that communicates the difference between current, voltage and resistance.
TASK 1.5
TASK 1.5
Rearrange the supermarket analogy diagrams and match with the circuit diagrams.
Give two advantages and two disadvantages of this model.
Overall, is it useful?Design your own model.
SUPERMARKET ELECTRICITY ANALOGY.docxFRIDAY P6 L3
FRIDAY P6 L3
1. Describe what current is and give its symbol (I) and unit of measurement (amps).
3. Describe what voltage is and give its symbol (V) and unit of measurement (volts)
4. Describe what resistance is and give its symbol (R) and unit of measurement (ohms).
TASK 1.5 (contd.)
TASK 1.5 (contd.)
4. Complete and copy the sentences from the sheet below.
TASK 1.6
TASK 1.6
View video: https://www.youtube.com/watch?v=mvuHsu8S6v8 Volts, amps, watts explained [6.15]
Use the sheet provided to create your own flip notes. On the first table, write:
voltage
current
resistance
Ohm's Law
On the next page, (which will go underneath) for the first three rows include:
Definition
Symbol
Unit
Unit Symbol
For the fourth, write the formula for Ohm's Law.
Cut along the outer edges of both sheets. Paste the second sheet into your book.
Cut along the dotted lines of the first sheet until you reach the first column - do not cut across it.
Paste the side margin of the top sheet and place it over the corresponding column on the sheet underneath to form a flip chart.
View videos:
What is Voltage https://www.youtube.com/watch?v=z8qfhFXjsrw [6.56]
What is Electric Current? https://www.youtube.com/watch?v=kYwNj9uauJ4 [5.12]
Resistance
Resistance
Consider the two water tanks, one with a narrow pipe and one with a wide pipe.
We can't fit as much volume through a narrow pipe as a wider one at the same pressure. This is resistance. The narrow pipe "resists" the flow of water through it even though the water is at the same pressure as the tank with the wider pipe.
In electrical terms, this is represented by two circuits with equal voltages and different resistances. The circuit with the higher resistance will allow less charge to flow, meaning the circuit with higher resistance has less current flowing through it.
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