2023 AQA Alevel PHYSICS 7408/3A Paper 3 Section A Question Paper & Mark scheme (Merged) June 2023 [VERIFIED]
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Module
2023 AQA Alevel PHYSICS 7408/3A
Institution
2023 AQA Alevel PHYSICS 7408/3A
2023 AQA Alevel
PHYSICS
7408/3A Paper 3
Section A
Question Paper
& Mark scheme
(Merged) June
2023 [VERIFIED]
Metre ruleANSWERlengths in metres, use
fiduciary markers and set squares to align, +- 1mm
resolution
screw gauge micrometreANSWERlengths in
micrometres, calibrate for zero error ...
2023 AQA A-
level PHYSICS
7408/3A Paper 3
Section A
Question Paper
& Mark scheme
(Merged) June
2023 [VERIFIED]
,Metre rule✔✔✔ANSWER➖lengths in metres, use
fiduciary markers and set squares to align, +- 1mm
resolution
screw gauge micrometre✔✔✔ANSWER➖lengths in
micrometres, calibrate for zero error and take repeated
measurements then calculate a mean, +- 0.01mm
resolution
vernier calipers✔✔✔ANSWER➖same with screw gauge
micrometer, +-0.1mm resolution
Thermometer✔✔✔ANSWER➖degrees celsius, calibrate
using ice or boiling water, read the instrument at eye level
at the top of the meniscus, half a division resolution.
Measuring cylinder✔✔✔ANSWER➖volume in ml or
cm^3, read at eye level with the bottom of the meniscus,
half a division resolution
, Pressure gauge✔✔✔ANSWER➖pressure in pascals,
calibrate at atmospheric pressure, half a division or one
division depending on use.
spring newton meter✔✔✔ANSWER➖in newtons,
calibrate and account for zero error. +-1 division
stopwatch✔✔✔ANSWER➖reaction time error. for
waves, record the timing over several oscillations and
take means
digital and analogue ammeter✔✔✔ANSWER➖current in
amperes, ensure ammeters are calibrated, take 3 readings
and calculate a mean. turn off the switch between
readings. +-1 div for analogue +-0.01 amps for digital.
voltmeters✔✔✔ANSWER➖same as ammeters.
pan balance✔✔✔ANSWER➖ensure that balance has
been zeroed. +-resolution of the balance
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