Applied Science AQA/Electric Circuits
Topic Title
[edit | edit source]Setting Applied context
[edit | edit source]Electric circuits are found in a huge number of devices. Electrical and electronic engineers are able to alter the properties of an electrical circuit by adding different components.
| Syllabus Content | What you need to do |
|---|---|
| • calculating current, voltage, power and resistance in a range of electrical circuits
• calculating the heating effect of a current • the formulas: I = Q/t P = IV I = V/R rate of heat loss = I 2 R • the behaviour of electric current, voltage and resistance in series and parallel circuits |
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Exploration of key ideas (must be original text, not C&P) – level checked by AQA
[edit | edit source]In general, point students towards the approach to take, as opposed to just giving them information.
Circuit Symbols
[edit | edit source]
The circuit symbols that will be used in learning and the production of a circuit are the following picture on the left. This doesn't include the light dependent resistor (LDR), light independent resistor (LIR) or the thermistor.
Calculating : I, V, P, Q, R.
[edit | edit source]The way that you calculate Current or I, is to use the equation; Q/t (Q being charge, t being time).
An example could be if a hairdryer has a current of 300A and is active for 30 secs, the hairdryer would have a charge of 10c or coulombs.
For Power or P you will use the equation; I*V (I is Current, V is volts).
An example of this would be, a hairdryer uses 300A and 150V.
Concept 4
[edit | edit source]explanation 4
Study Task
[edit | edit source]Work to do to understand this topic e.g. research, analysis
Careers and Organisations
[edit | edit source]Carry out some research into these jobs in this area. (Feel free to add other jobs you find.)
| Research these roles: | What are the benefits of this role to society? | What organisations would employ someone in this role?
(Where would they work?) |
What would someone in this role have to do within the organisation? | What scientifically-related skills do they need to have?
What techniques do they need to have mastered? |
What experience is needed to undertake this role and its responsibilities within an organisation? | What other science personnel will they work with in their organisation. |
|---|---|---|---|---|---|---|
| Job 1 | ||||||
| Job 2 |
Relevant practical/s
[edit | edit source]– relating to criteria skills
Quick questions
[edit | edit source]Example:
quick questions
click to reveal answer
Exam-style questions
[edit | edit source]– can we use old AQA qs… e.g. from more than 5 years ago? With Examiner comments
click to reveal answer
Links
[edit | edit source]to other sections within this book
to good external websites (including AQA website, wikipedia, relevant applications / companies) - also considering links in spec
References / Bibliography
[edit | edit source]of recommended text books
including mapped refs to existing books