PHYSICS A LEVEL AQA(LATEST 2025/2026)
STUDY GUIDE WITH COMPLETE SOLUTIONS
Acceleration - ✔✔✔-change in V per unit t
Acceleration of free fall - ✔✔✔-Acceleration of an object only acted on by force of
gravity
Accurate - ✔✔✔-Measurement obtained using calibrated instruments correctly
Accuracy - ✔✔✔-How close to the true value
Alpha radiation - ✔✔✔-Particle consisting of 2 P's and 2 N's
Amplitude - ✔✔✔-Max displacement of oscillating particle from equilibrium
position
,Annihilation - ✔✔✔-Particle and antiparticle meet, destroy eachother and emit
radiation
Antibaryon - ✔✔✔-Hadron w/ 3 quarks
Antimatter - ✔✔✔-Antiparticles with same quantum values but opposite charge
to corresponding particles
Antinode - ✔✔✔-Fixed point on stationary wave where amplitude is maximum
Atomic number Z - ✔✔✔-Number of P's in atom nucleus
Baryon - ✔✔✔-Hadron w/ 3 quarks
Base units - ✔✔✔-Units that define the SI system:
Kg
Amp
S
M
,Beta radiation - ✔✔✔-when B- or B+ particles are emitted following decay of a
neutron-rich or proton-rich nucleus
Braking distance - ✔✔✔-Distance travelled by vehicle in time taken to stop
Breaking stress/Ultimate tensile stress - ✔✔✔-Tensile stress needed to break a
solid material
Brittle - ✔✔✔-Snaps without bending or stretching when subject to stress
Centre of mass - ✔✔✔-Point through which a single force on the body has no
turning affect
Charge carriers - ✔✔✔-Charged particles that move through substance when PD
applied across it
Kirchoff's 1st Law - ✔✔✔-Current passing through 2 or more components in series
is the same through each component
At a junction the total current in = total current out
Kirchoff's 2 Law - ✔✔✔-2 or more components in series - total PD across all the
components is = to sum of the PD's across each component
, Sum of emf's around complete loop = sum of PD's around the loop
Coherent - ✔✔✔-Constant phase difference and same frequency
Conservation rules - ✔✔✔-Rule that:
Baryon no
Lepton no
Charge
Energy
Momentum
always conserved in interactions
When is strangeness conserved? - ✔✔✔-Strong interactions
How are strange particles created? - ✔✔✔-Strong interactions
How to strange particles decay? - ✔✔✔-Weak interactions
Couple - ✔✔✔-Pair of equal and opposite forces acting upon the same body but
not along the same line
STUDY GUIDE WITH COMPLETE SOLUTIONS
Acceleration - ✔✔✔-change in V per unit t
Acceleration of free fall - ✔✔✔-Acceleration of an object only acted on by force of
gravity
Accurate - ✔✔✔-Measurement obtained using calibrated instruments correctly
Accuracy - ✔✔✔-How close to the true value
Alpha radiation - ✔✔✔-Particle consisting of 2 P's and 2 N's
Amplitude - ✔✔✔-Max displacement of oscillating particle from equilibrium
position
,Annihilation - ✔✔✔-Particle and antiparticle meet, destroy eachother and emit
radiation
Antibaryon - ✔✔✔-Hadron w/ 3 quarks
Antimatter - ✔✔✔-Antiparticles with same quantum values but opposite charge
to corresponding particles
Antinode - ✔✔✔-Fixed point on stationary wave where amplitude is maximum
Atomic number Z - ✔✔✔-Number of P's in atom nucleus
Baryon - ✔✔✔-Hadron w/ 3 quarks
Base units - ✔✔✔-Units that define the SI system:
Kg
Amp
S
M
,Beta radiation - ✔✔✔-when B- or B+ particles are emitted following decay of a
neutron-rich or proton-rich nucleus
Braking distance - ✔✔✔-Distance travelled by vehicle in time taken to stop
Breaking stress/Ultimate tensile stress - ✔✔✔-Tensile stress needed to break a
solid material
Brittle - ✔✔✔-Snaps without bending or stretching when subject to stress
Centre of mass - ✔✔✔-Point through which a single force on the body has no
turning affect
Charge carriers - ✔✔✔-Charged particles that move through substance when PD
applied across it
Kirchoff's 1st Law - ✔✔✔-Current passing through 2 or more components in series
is the same through each component
At a junction the total current in = total current out
Kirchoff's 2 Law - ✔✔✔-2 or more components in series - total PD across all the
components is = to sum of the PD's across each component
, Sum of emf's around complete loop = sum of PD's around the loop
Coherent - ✔✔✔-Constant phase difference and same frequency
Conservation rules - ✔✔✔-Rule that:
Baryon no
Lepton no
Charge
Energy
Momentum
always conserved in interactions
When is strangeness conserved? - ✔✔✔-Strong interactions
How are strange particles created? - ✔✔✔-Strong interactions
How to strange particles decay? - ✔✔✔-Weak interactions
Couple - ✔✔✔-Pair of equal and opposite forces acting upon the same body but
not along the same line
