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AQA biology a-level paper 2 Question and Answer 100% Correct describe and explain the steps in the light dependent reaction of photosynthesis - 1. photoionisation: light reaches chlorophyll in PSII, which is absorbed by an electron, which becomes excited and moves to a higher energy level. 2. ...

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 t...

AQA A Level Physics Mechanics Exam Questions and Answers 100% Solved Difference between a scalar and a vector - vector has magnitude (size) and direction, whereas scalar only has magnitude (size). Examples of scalars - speed, mass, time, energy, power Examples of vectors - displacement, velocit...

AQA 'A' Psychology Research Methods Key terms Exam Questions and Answers 100% Solved Aim - General statement of why the study is being carried out. Null Hypothesis - An assumption that there is no relationship between the variables. E.g. There is no relationship between age and intellige...

Bristol - GCSE Geography AQA Exam Questions with 100% Correct Answers where is Bristol? - - largest city in south west England. - population of 440 500, and its population is expected to reach 500 000 by 2029. - is one of the UK's 10 'core cities'. why is Bristol a major UK city? - - ...