Daily Practice · GCSE Science
July 1961 5-a-day
Every sheet in July 1961
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st July 1961A transformer's primary coil is connected to a 12 V supply and has 60 turns. Calculate the number of turns needed on the secondary coil to produce an output of 3.0 V.
- 2nd July 1961A microscope has a x10 eyepiece lens and a x20 objective lens. Calculate the total magnification.
- 3rd July 1961State two functions of bile.
- 4th July 1961What is an antigen?
- 5th July 1961Define a synapse.
- 6th July 1961Give one example of an abiotic factor that could affect where a plant species grows.
- 7th July 1961Explain why potable water is not the same as pure water.
- 8th July 1961Explain why sodium chloride conducts electricity when molten but not when solid.
- 9th July 1961State two reasons why a percentage yield is less than 100 percent.
- 10th July 1961State what is meant by the activation energy of a reaction.
- 11th July 1961State the general formula of the alkanes.
- 12th July 1961Explain why the baseline is drawn in pencil rather than ink.
- 13th July 1961Give one reason for taking the gradient from the line of best fit rather than from two data points.
- 14th July 1961State the equation linking potential difference, current and resistance.
- 15th July 1961Define half-life.
- 16th July 1961Calculate the momentum of a 1200 kg car travelling at 18 m/s.
- 17th July 1961Explain why a compass needle placed just outside one end of a current-carrying solenoid lines up parallel to the solenoid's axis.
- 18th July 1961Name the second major piece of observational evidence, besides red-shift, that supports the Big Bang model.
- 19th July 1961Define osmosis.
- 20th July 1961Explain why a small number of healthy volunteers are given a very low dose of a new drug in the first stage of a clinical trial.
- 21st July 1961A student counts 19 pulse beats in 10 seconds immediately after running. Calculate her heart rate in beats per minute.
- 22nd July 1961State how many chromosomes are found in a normal human body cell, and how they are arranged.
- 23rd July 1961A gas syringe collects 48 cubic centimetres of gas in 40 seconds. Calculate the mean rate.
- 24th July 1961Why do isotopes of an element react in the same way?
- 25th July 1961Calculate the Mr of calcium carbonate, CaCO3. (Ca = 40, C = 12, O = 16)
- 26th July 1961In the industrial extraction of aluminium, explain why the carbon anodes need to be replaced regularly.
- 27th July 1961State the condition, in terms of energy, that colliding particles must meet for a reaction to occur.
- 28th July 1961State the reagent added, and the result, that shows a white solid contains sulfate ions.
- 29th July 1961State the two products of the complete combustion of a hydrocarbon fuel.
- 30th July 1961State one way to increase the efficiency of a motor.
- 31st July 1961Why is the density of a gas much lower than that of the same substance as a liquid?