Daily Practice - 13+ Common Entrance
Common Entrance english, maths and science.
21st February 2019
- 1Chemistry: The Periodic Table and Separating Mixtures
In a chromatography experiment, the solvent front travels 10 cm and a dye spot travels 4 cm. Calculate the Rf value of the dye.
- 2Chemistry: Reactions, Energy and Rates
State whether an exothermic reaction transfers energy to, or takes in energy from, the surroundings.
- 3Chemistry: Metals, the Reactivity Series and Environmental Chemistry
Name the two substances that must both be present for iron to rust.
- 4Physics: 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.
- 5Physics: 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.
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