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Further Information each correct answer = 1 mark Accept descriptions of making slopes, e.g. to make the material go downwards / to Accept so it is always the same height/angle/incline Do not accept to make the results accurate / reliable both correct = 1 mark more than one material named = 0 marks Accept both the answers anywhere within the answer lines Accept do it again / take the time more than once / find the mean or average for
Marks 2 make a slide 1 1 each material
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Answer Blessy uses the boards to make a slope / make a ramp / raise one Blessy always uses four boards to make it a fair test / to compare The ball will take the longest time to reach the end of the bumpy plastic. This is because this material has the most friction.
end of the material. (the results). repeat the investigation
Question (b)
10(a) (c)
