Physics 7408: Turning Points in Physics(OPTION) Topical Past Paper Questions
AQA A Level Physics (7408) past-paper questions on Turning Points in Physics(OPTION), free. This topic is frequently examined across 8 exam sessions. Sign in for the full topic-segregated question bank and AI worksheets.
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Figure 3 shows a modern version of Bertozzi's experiment to measure the kinetic energy of high-speed electrons. A timer is used to measure the time taken for a pulse of electrons to travel from the detector to the aluminium block. Figure 3 A potential difference (pd) of 1.30 MV i…
Einstein developed his theory of special relativity from two postulates. One postulate states that physical laws have the same form in all inertial frames. 1 State the other postulate and explain how it is consistent with the equation: $$ c=\sqrt{\frac{1}{\mu_{0}\varepsilon_{0}}}…
1 Bertozzi investigated how the kinetic energy of electrons varies with speed. Which graph shows the variation of kinetic energy with speed? Tick (✓) one box. [1 mark] 2 Calculate the speed of a particle when its kinetic energy is equal to its rest energy. [3 marks] speed = $ \un…
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