A-Level Physics: AQA Year 1 & 2 Exam Practice Workbook - includes Answers: superb for the 2024 and 2025 exams (CGP AQA A-Level Physics)

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State the difference between the direction of electron flow in a circuit and the direction of the conventional current. c If the thermodynamic temperature of a gas is doubled, by what factor does the average kinetic energy of its particles increase?

d. is needed to produce a field strength of 500 V m−1 between two parallel metal plates separated by 1. The force and the rate of change of momentum it produces are related by force = rate of change of momentum.For a double-slit experiment, suggest how the wavelength of the microwaves leads to differences in the quantities a, x and D as compared with those used in light experiments. Planning experiments on stationary waves Being able to describe and plan experiments needs practice and thought. Describe the graph obtained when the wavelength λ of the sound wave is plotted against the frequency f of the tuning fork. The road surface is banked at an angle θ (that is, it slopes across the direction of travel) so that the car can travel around the bend without slipping.

This exercise provides practice in drawing and interpreting field diagrams, and using the equation for gravitational force. b State what the symbols Δs Δ and Δt c Sketch a straight-line displacement–time graph and indicate how you would find Δs from this graph. This exercise provides practice drawing electric fields and understanding the rules that should be followed. Resistivity and resistance: harder problems This exercise gives you practice in some harder examples where you have to use R = ρl .

c The area of the triangle represents the object’s additional displacement resulting from its acceleration. a State which particles in the carbon atom are leptons and how many leptons in total are found in one neutral atom of carbon. g The coherent light is replaced by light of the same wavelength, but from two different sources that are not coherent.