Daily Practice - 13+ Common Entrance
Common Entrance english, maths and science.
23rd February 2000
- 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 parcel of mass 2.5 kg is lifted onto a shelf 2 m above the ground. Take g = 10 N/kg and use GPE = mass x g x height. Calculate the gain in gravitational potential energy.
- 4Physics: Electricity, Magnetism and Waves
A wave has a frequency of 50 Hz and a wavelength of 4 m. Use wave speed = frequency x wavelength to calculate its speed.
- 5Physics: Light, Sound and Space
Put these bodies in order of their distance from the Sun, starting with the closest: Mars, Mercury, Earth, Venus.
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