Physics AS Level AQA 2024
Updated Exam
Acceleration - ANSWER- change in V per unit t
Accurate - ANSWER- Measurement obtained using calibrated instruments correctly
Alpha radiation - ANSWER- Particle consisting of 2 P's and 2 N's
Amplitude - ANSWER- Max displacement of oscillating particle fr...
Physics AS Level AQA 2024
Updated Exam
Acceleration - ANSWER- change in V per unit t
Accurate - ANSWER- Measurement obtained using calibrated instruments correctly
Alpha radiation - ANSWER- Particle consisting of 2 P's and 2 N's
Amplitude - ANSWER- Max displacement of oscillating particle from equilibrium position
Annihilation - ANSWER- Particle and antiparticle meet, destroy eachother and emit
radiation
Antibaryon - ANSWER- Hadron w/ 3 quarks
Antimatter - ANSWER- Antiparticles with same quantum values but opposite charge to
corresponding particles
Antinode - ANSWER- Fixed point on stationary wave where amplitude is maximum
Atomic number Z - ANSWER- Number of P's in atom nucleus
Baryon - ANSWER- Hadron w/ 3 quarks
Base units - ANSWER- Units that define the SI system:
Kg
Amp
S
M
Beta radiation - ANSWER- when B- or B+ particles are emitted following decay of a
neutron-rich or proton-rich nucleus
Breaking stress/Ultimate tensile stress - ANSWER- Tensile stress needed to break a
solid material
Brittle - ANSWER- Snaps without bending or stretching when subject to stress
Centre of mass - ANSWER- Point through which a single force on the body has no
turning affect
, Charge carriers - ANSWER- Charged particles that move through substance when PD
applied across it
Kirchoff's 1st Law - ANSWER- 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 - ANSWER- 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 - ANSWER- Constant phase difference and same frequency
Conservation rules - ANSWER- Rule that:
Baryon no
Lepton no
Charge
Energy
Momentum
always conserved in interactions
When is strangeness conserved? - ANSWER- Strong interactions
How are strange particles created? - ANSWER- Strong interactions
How to strange particles decay? - ANSWER- Weak interactions
Couple - ANSWER- Pair of equal and opposite forces acting upon the same body but
not along the same line
Critical angle - ANSWER- The angle of incidence of a light ray must exceed this angle
for total internal reflection to occur
Critical temperature - ANSWER- Temperature at or below which a superconducting
material has zero resistivity
Cycle - ANSWER- Interval for an oscillating particle from a certain displacement and
velocity to the next time the particle has identical displacement and velocity
de Broglie wavelength - ANSWER- Wavelength of a matter particle
deexcitation - ANSWER- process by which atom loses energy by photon emission as
electron moves to lower energy level - inner shell
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