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Infection and response
Organisation
Cell biology
Biological molecules
Homeostasis and response
Responding to change (a2 only)
Energy transfers (a2 only)
The control of gene expression (a-level only)
Substance exchange
Bioenergetics
Genetic information & variation
Inheritance, variation and evolution
Genetics & ecosystems (a2 only)
Ecology
Cells
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1f industrialisation and the people: britain, c1783-1885
1c the tudors: england, 1485-1603
Britain & the wider world: 1745 -1901
Inter-war germany
World war one
2n revolution and dictatorship: russia, 1917-1953
World war two & the holocaust
1l the quest for political stability: germany, 1871-1991
The cold war
2j america: a nation divided, c1845-1877
Medieval period: 1066 -1509
The fight for female suffrage
2m wars and welfare: britain in transition, 1906-1957
2d religious conflict and the church in england, c1529-c1570
Britain: 1509 -1745
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15/07/2022
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COMPONENTS CELL F BATTERY SWITCH VOLTMETER qv Closect open DIODE AMMETERS A RESISTOR (fixed) VARIABLE RESISTOR Circuits FILAMENT BULB MOTOR THERMISTOR LOR (light dependent resistors LED (ight emitting dicae) V=IR potential difference (V) + e = current resistance (A) licing on wanted greate energy transfer, increasing efficiency SERIES CIRCUIT • Closed sircuit • current same everywhere 0.SA 0.5A energy transferred POTENTIAL DIFFERENCE measured in VOITS energy transferred pur unit charge Joule per coulomb ↓ •measured across two points •measured with a voltmeter ↳ placed in paralel • Voltage across a component in a closed or open circuit E=QV (current will always flow) 0.5A charge moved (C) K PARALLEL CIRCUIT • branched circuit •current spirts into multiple paths v • total current into a junction = total current in each of the branches • voltage is the same across each branch potential differenc (V) 03A O.IA O.IA OIA 5V 5v 0-3A CURRENT measured in amps rare of flow of charge (flow ot electrons in the wires •measured at single point measured with animeter placed in series
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