1. The following are four possible graphs of a quantity Y plotted against another quantity X. Y Y Y Y X A B X C X D X Which graph best represents Y when it is the kinetic…

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1. The diagram below shows part of a molecule of deoxyribonucleic acid (DNA). C B D A (a) Name A, B, C and D. A ................................................................................................................................…

1. The diagram shows a lever with two arms of equal length and with a 30 kg mass at one end. The force F is just strong enough to raise the 30 kg mass off the ground. 30…

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1. A child is playing on a swing. The graph shows how the displacement of the child varies with time. 2 1 Time/ s 0 –1 –2 Displacement / m The maximum velocity, in m…

1. A student is asked: “What is meant by background radiation?” She writes: “It is the radiation produced by the rocks in the ground.” This answer is A B C D correct…