1. G482 Electricity, Waves & Photons
2 Resistance
G482 Electricity, Waves & Photons
2.1.1 Circuit Symbols
Ks5 OCR Physics H158/H558
Index
Mr Powell 2012

2. 2.2.1 Circuit Symbols
(a) recall and use appropriate circuit symbols as set out in SI Units, Signs, Symbols and Abbreviations (ASE, 1981) and Signs, Symbols and Systematics (ASE, 1995);
(b) interpret and draw circuit diagrams using these symbols.

3. TASK: Link these symbols to names & functions….
cell
Indicator / light source
Low resistance, connect in series
resistor
No more semi circles!
thermistor
High resistance, connect in parallel
Electric motor
ammeter
Resistance falls as temp rises
Light emitting diode
Resistance falls as light level rises
Light dependent resistor
Emits light when forward biased
heater
voltmeter
of a specific value
diode
Conducts when forward biased
Variable resistor
Many cells = a battery

4. Low resistance, connect in series
cell
Low resistance, connect in series
Indicator / light source
No more semi circles!
resistor
High resistance, connect in parallel
thermistor
Electric motor
Resistance falls as temp rises
ammeter
Resistance falls as light level rises
Light emitting diode
Emits light when forward biased
Light dependent resistor
heater
of a specific value
voltmeter
Conducts when forward biased
diode
Many cells = a battery
Variable resistor

5. Plenary Question….
...... /
Basic
iSlice

6. Connection
Connect your learning to the content of the lesson
Share the process by which the learning will actually take place
Explore the outcomes of the learning, emphasising why this will be beneficial for the learner
Demonstration
Use formative feedback – Assessment for Learning
Vary the groupings within the classroom for the purpose of learning – individual; pair; group/team; friendship; teacher selected; single sex; mixed sex
Offer different ways for the students to demonstrate their understanding
Allow the students to “show off” their learning
Consolidation
Structure active reflection on the lesson content and the process of learning
Seek transfer between “subjects”
Review the learning from this lesson and preview the learning for the next
Promote ways in which the students will remember
A “news broadcast” approach to learning
Activation
Construct problem-solving challenges for the students
Use a multi-sensory approach – VAK
Promote a language of learning to enable the students to talk about their progress or obstacles to it
Learning as an active process, so the students aren’t passive receptors