AQA A LEVEL PHYSICS Exam Questions and Answers 100% Solved
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Course
AQA
Institution
AQA
AQA A LEVEL PHYSICS Exam Questions
and Answers 100% Solved
Electromotive force (emf) - Amount of electrical energy produced by a
battery/source per 1C of charge
Power - Rate of transfer of electrical energy to a component per second
Resistance - Potential difference divided by the current, if ...
Critical temperature - ✔✔The temperature that below which a
superconductor has no resistance and very large currents can pass
through with very small voltage/very small energy losses
Internal resistance - ✔✔An electrical source or cell's opposition to the flow
of charge through it, defined as the loss of pd per 1A current when a
current passes through the source/cell
Isotopes - ✔✔Nuclei with the name number of protons but different number
of neutrons
Pair production - ✔✔When a particle and its corresponding anti-particle are
produced from a photon with energy greater than the total rest energy of
the 2 particles
Annihilation - ✔✔When a particle and its corresponding anti-particle collide
they annihilate converted their kinetic energy and rest energies into 2 high
energy photons(E=hf)
Moment - ✔✔Force multiplied by perpendicular distance between force and
the pivot
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