Daily Practice · 13+ Common Entrance

Daily Practice - 13+ Common Entrance

28th September 1996

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

1
Chemistry: Reactions, Energy and Rates
In the disappearing cross experiment, a student times how long it takes for a cross under the flask to disappear from view. Explain why a shorter time indicates a faster reaction.
2
Chemistry: Metals, the Reactivity Series and Environmental Chemistry
A piece of magnesium ribbon is added to silver nitrate solution. State whether a displacement reaction would occur, and explain why.
3
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.
4
Physics: Electricity, Magnetism and Waves
Name the circuit component whose symbol is a circle with a cross inside it.
5
Physics: Light, Sound and Space
An astronaut has a mass of 70 kg on Earth. State her mass on the Moon, and explain why her weight on the Moon is less than her weight on Earth.

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