Daily Practice - 13+ Common Entrance
Common Entrance english, maths and science.
7th November 2011
- 1Science: Full Practice Paper 7
A pupil measures the resultant force on an object as 0 N even though several forces are acting on it. State the term used to describe forces in this situation.
- 2Science: Full Practice Paper 8
State the name of a reaction in which a more reactive metal displaces a less reactive metal from a compound.
- 3Science: Full Practice Paper 9
Name the process used to neutralise an acid using an alkali.
- 4Working Scientifically
A student measures the length of a metal rod five times: 62.1 cm, 62.4 cm, 62.0 cm, 62.5 cm, 62.2 cm. Calculate the mean length of the rod.
- 5Science: Working Scientifically and Practical Skills Set 2
A pupil uses a stopwatch to measure how long a candle takes to burn down by 1 cm, but forgets to shield the candle from a draught in the room. State whether this makes the result less reliable or less valid, and explain your answer.
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