Daily Practice - 13+ Common Entrance
24th December 1997
- 1Chemistry: 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.
- 2Chemistry: 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.
- 3Physics: Forces and Energy
A farmer weighing 900 N stands on the ground. Her boots have a total sole area of 0.03 m^2. Use pressure = force / area to calculate the pressure she exerts on the ground, giving your answer in Pa.
- 4Physics: Electricity, Magnetism and Waves
State whether the north pole of one bar magnet placed near the north pole of a second bar magnet will attract or repel.
- 5Physics: Light, Sound and Space
A red filter is held in front of a torch shining white light. State which colour of light passes through the filter.
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