Daily Practice

13+ Common Entrance

10th June 1983

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

1
Chemistry: Reactions, Energy and Rates
State what happens to a catalyst during a chemical reaction.
2
Chemistry: Metals, the Reactivity Series and Environmental Chemistry
In the reactivity series, state which is more reactive: zinc or copper.
3
Physics: 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.
4
Physics: 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.
5
Physics: Light, Sound and Space
State why an astronaut in open space, far from any planet or star, cannot hear an explosion happening nearby.

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