Daily Practice - 13+ Common Entrance
Common Entrance english, maths and science.
21st August 2025
- 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
In a tug of war, Team X pulls with a force of 640 N and Team Y pulls with a force of 590 N in the opposite direction. Calculate the resultant force acting on the rope.
- 5Physics: Electricity, Magnetism and Waves
A torch bulb has a resistance of 15 ohms and a current of 0.2 A flows through it. Use V = I x R to calculate the voltage across the bulb.
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