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AQA A Level Physics Astrophysics Stars Answers

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AQA Physics • AQA Physics

AQA OCR Edexcel GCSE Chemistry Tests for Ions and Gases Answers

AQA OCR Edexcel GCSE Chemistry Tests for Ions and Gases Answers

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AQA Chemistry • AQA Chemistry

AQA OCR Edexcel BIOLOGY Gene Technology Answers

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AQA OCR Edexcel BIOLOGY Gene Technology Answers

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AQA BIOLOGY • AQA BIOLOGY

AQA OCR EDEXCEL GCSE Chemistry The development of the model of the atom Answers

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AQA OCR EDEXCEL GCSE Chemistry The development of the model of the atom Answers

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AQA Chemistry • AQA Chemistry

AQA OCR EDEXCEL GCSE Chemistry Compounds and Mixtures Answers

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AQA OCR EDEXCEL GCSE Chemistry Compounds and Mixtures Answers

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AQA Chemistry • AQA Chemistry

AQA OCR Edexcel Control of Heart Rate Answers

AQA OCR Edexcel Control of Heart Rate Answers

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AQA BIOLOGY • AQA BIOLOGY

AQA OCR Edexcel A Level Physics Electric Fields Answers

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1. Total for Question 1: 13 (a) Define the electric field strength at a point in space. [1] (b) State one similarity and one difference between the electric fields produced by charges and the gravitational fields produced by masses. [2] (c) Which two of the following statements are true? i. The direction of an electric field is that in which a negative charge would move. ii. Electric field lines are always perpendicular to the surface of a conductor. iii. The spacing ...

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AQA Physics • AQA Physics

AQA OCR DNA Fingerprinting Answers

DNA Profiling Answer Marks 1. a) i) Highly repetitive sequences of DNA bases ii) VNTRs differ in size/length between different individuals -VNTRs occur in lots of different places in the genome between different individuals - The difference in size and location of VNTRs creates a genetic fingerprint unique to the individual which can be used to identify them. b) i)- PCR amplifies DNA - It copies the areas that contain VNTRs using primers - The result is a sample containing man...

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AQA BIOLOGY • AQA BIOLOGY

AQA Edexcel A Level Physics Gravitational Fields Answers 2

1. The graph below shows the variation of the orbital period squared with the radius cubed for Jupiter’s moons. Total for Question 1: 10 (a) Define a gravitational field. (b) By equating the centripetal force and the gravitational force on a planet, show that T 2 = 4π2 r3. [1] [4] (c) Use the result from the previous part and the graph above to calculate Jupiter’s mass. [3] (d) Kepler’s second law states that a line segment joining a pla...