Daily Practice - 13+ Common Entrance
Common Entrance english, maths and science.
26th January 2020
- 1Chemistry: The Periodic Table and Separating Mixtures
Explain why a pencil, not a pen, must be used to draw the baseline on chromatography paper.
- 2Chemistry: 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.
- 3Chemistry: 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.
- 4Physics: Forces and Energy
In a tug of war, Team X pulls with a force of 640 N and Team Y pulls with a force of 590 N in the opposite direction. Calculate the resultant force acting on the rope.
- 5Physics: Electricity, Magnetism and Waves
State one way, other than increasing the current, to increase the strength of an electromagnet made from a coil of wire around an iron core.
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