Daily Practice

13+ Common Entrance

1st December 1991

5 questions · Years 7-8 · 744 questions in this band

1
Chemistry: The Periodic Table and Separating Mixtures
Explain why a pencil, not a pen, must be used to draw the baseline on chromatography paper.
2
Chemistry: Reactions, Energy and Rates
A student dissolves ammonium nitrate in water and the temperature of the solution falls. State whether this process is exothermic or endothermic.
3
Chemistry: Metals, the Reactivity Series and Environmental Chemistry
Explain why attaching a block of zinc to the hull of a steel ship helps to protect the ship from rusting.
4
Physics: Forces and Energy
Ben has a mass of 12 kg. Calculate his weight on Earth. Use weight = mass x gravitational field strength, with g = 10 N/kg.
5
Physics: Electricity, Magnetism and Waves
In a series circuit, an ammeter placed before a bulb reads 0.6 A. State the current a second ammeter, placed elsewhere in the same series circuit, would read.

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