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
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]
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.|
Relevant practical/s[edit | edit source]
– relating to criteria skills
Quick questions[edit | edit source]
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