Daily Practice

13+ Common Entrance

30th May 1992

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
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.
4
Physics: Electricity, Magnetism and Waves
In a series circuit, an ammeter placed before a bulb reads 0.6 A. State the current a second ammeter, placed elsewhere in the same series circuit, would read.
5
Physics: Light, Sound and Space
State the law of reflection.

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