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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In practice, several measurements of load and extension would be made and a graph drawn of stress against strain. c Use the idea of ‘work done by a force’ to explain why the satellite’s speed increases as it moves closer to the Earth. a Calculate the path difference between the two waves, one travelling from S1 to P and the other travelling from S2 to P.

c The area of the triangle represents the object’s additional displacement resulting from its acceleration. A The units are mixed – for example, resistivity in Ω m and length in cm – so make sure you convert them so they are consistent. But gases at low pressures behave very much like ideal gases, so the idea of an ideal gas is very useful.The nature and properties of nuclear radiation This exercise helps you understand that the nature of radiation is what it is made of; its properties are what it can do. Remember to always calculate a spacecraft’s distance from the centre of the Earth, not its distance above the Earth’s surface. c Rearrange the equation to give an expression which has the form of ‘the difference of two squares’.

This exercise provides practice in calculating angles in radians and converting between degrees and radians. By comparing a specific equation to this ‘standard equation’, you can deduce a great deal of information about the motion of an oscillating mass. It shows the four forces acting on the block as it is pulled, by a length of string, directly up the slope at a constant speed of 0. A charged sphere can be considered to behave like a point charge where all of the charge is concentrated at the centre of the sphere.Using your diagram, join up all the points on one side of the point A where the path difference is λ. in terms of the energy transferred by a source in driving unit charge around a complete circuit distinguish between e. Suggest two sources of uncertainty in the experiment and explain in each case how they affect the calculated value for g.

State two advantages for each of: a FM transmissions when compared with AM transmissions b AM transmissions when compared with FM transmissions. In this exercise you will answer questions about thermometers and the Celsius and thermodynamic (Kelvin) scales of temperature. Kirchhoff’s first law: the sum of currents entering any point is equal to the sum of the currents leaving that same point.Explain why the experiment is difficult to perform with α-radiation and how the experiment shows that β− -particles are emitted with a range of speeds.