AQA A LEVEL PHYSICS PAPER 1 LATEST EDITION
ACCURATE QUESTIONS AND ANSWERS 2025/2026
Current - ANS-Rate of flow of charge
Coulomb - ANS-The amount of charge passing a point when a current of 1A flows for 1s
Potential difference - ANS-The work done per unit charge in moving a small point positive charge
between two points
Threshold Voltage for a Diode - ANS-The voltage at which a current will begin to flow at, assumed to be
+0.6V if not stated
Reverse Bias - ANS-When very little currency can flow in the reverse direction of a diode
Variable Resistor - ANS-Can be used to change the current through a circuit can also be called a rheostat
NTC Thermistor - ANS-(A type of semiconductor) that has decreasing resistance when its temperature
increases - negative temperature coefficient
Transitional Temperature - ANS-The critical temperature at and below which a superconductor has zero
resistivity
Semiconductor - ANS-A group of materials which conduct electricity (not as well as metals), when their
temperature rises they can release more charge carriers and their resistance decreases
, Resistance - ANS-The ratio of a components potential difference to its current
Volt - ANS-The potential difference across a component when 1 joule of energy is used to move a
coulomb of charge through a component
Ohm's Law - ANS-Provided that the physical conditions remain the same, the current through an ohmic
conductor is directly proportional to the potential difference across it
Ohmic conductor - ANS-A material that follows Ohm's law when physical components remain the same
Diodes - ANS-Components made from semi conductors that only allow current to flow in one direction
Resistivity - ANS-The resistance of a 1m length of wire with a 1m^2 cross sectional area
Superconductor - ANS-A material that has zero resistivity when it is cooled below its critical temperature
Critical Temperature - ANS-The temperature below which a material will have zero resistance and will
become a superconductor
Power - ANS-The rate of transfer of energy
EMF - ANS-The work done in moving a unit charge through a battery
Lost Volts - ANS-Work done per unit charge in overcoming the internal resistance within a battery
Terminal PD - ANS-The potential difference between the two terminals of the power supply
Potential Divider - ANS-A circuit with a constant voltage source and more than one resistor connected in
series that can be used to vary the output voltage
ACCURATE QUESTIONS AND ANSWERS 2025/2026
Current - ANS-Rate of flow of charge
Coulomb - ANS-The amount of charge passing a point when a current of 1A flows for 1s
Potential difference - ANS-The work done per unit charge in moving a small point positive charge
between two points
Threshold Voltage for a Diode - ANS-The voltage at which a current will begin to flow at, assumed to be
+0.6V if not stated
Reverse Bias - ANS-When very little currency can flow in the reverse direction of a diode
Variable Resistor - ANS-Can be used to change the current through a circuit can also be called a rheostat
NTC Thermistor - ANS-(A type of semiconductor) that has decreasing resistance when its temperature
increases - negative temperature coefficient
Transitional Temperature - ANS-The critical temperature at and below which a superconductor has zero
resistivity
Semiconductor - ANS-A group of materials which conduct electricity (not as well as metals), when their
temperature rises they can release more charge carriers and their resistance decreases
, Resistance - ANS-The ratio of a components potential difference to its current
Volt - ANS-The potential difference across a component when 1 joule of energy is used to move a
coulomb of charge through a component
Ohm's Law - ANS-Provided that the physical conditions remain the same, the current through an ohmic
conductor is directly proportional to the potential difference across it
Ohmic conductor - ANS-A material that follows Ohm's law when physical components remain the same
Diodes - ANS-Components made from semi conductors that only allow current to flow in one direction
Resistivity - ANS-The resistance of a 1m length of wire with a 1m^2 cross sectional area
Superconductor - ANS-A material that has zero resistivity when it is cooled below its critical temperature
Critical Temperature - ANS-The temperature below which a material will have zero resistance and will
become a superconductor
Power - ANS-The rate of transfer of energy
EMF - ANS-The work done in moving a unit charge through a battery
Lost Volts - ANS-Work done per unit charge in overcoming the internal resistance within a battery
Terminal PD - ANS-The potential difference between the two terminals of the power supply
Potential Divider - ANS-A circuit with a constant voltage source and more than one resistor connected in
series that can be used to vary the output voltage
