Daily Practice · GCSE Science
April 1999 - GCSE Science 5-a-day
Every sheet in April 1999
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st April 1999Give one reason for taking the gradient from the line of best fit rather than from two data points.
- 2nd April 1999State the equation linking potential difference, current and resistance.
- 3rd April 1999Define half-life.
- 4th April 1999Calculate the momentum of a 1200 kg car travelling at 18 m/s.
- 5th April 1999Explain why a compass needle placed just outside one end of a current-carrying solenoid lines up parallel to the solenoid's axis.
- 6th April 1999Name the second major piece of observational evidence, besides red-shift, that supports the Big Bang model.
- 7th April 1999Define osmosis.
- 8th April 1999Explain 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.
- 9th April 1999A student counts 19 pulse beats in 10 seconds immediately after running. Calculate her heart rate in beats per minute.
- 10th April 1999State how many chromosomes are found in a normal human body cell, and how they are arranged.
- 11th April 1999A gas syringe collects 48 cubic centimetres of gas in 40 seconds. Calculate the mean rate.
- 12th April 1999Why do isotopes of an element react in the same way?
- 13th April 1999Calculate the Mr of calcium carbonate, CaCO3. (Ca = 40, C = 12, O = 16)
- 14th April 1999In the industrial extraction of aluminium, explain why the carbon anodes need to be replaced regularly.
- 15th April 1999State the condition, in terms of energy, that colliding particles must meet for a reaction to occur.
- 16th April 1999State the reagent added, and the result, that shows a white solid contains sulfate ions.
- 17th April 1999State the two products of the complete combustion of a hydrocarbon fuel.
- 18th April 1999State one way to increase the efficiency of a motor.
- 19th April 1999Why is the density of a gas much lower than that of the same substance as a liquid?
- 20th April 1999A cyclist rides 300 m north then 300 m back south to the start. State the total distance travelled and total displacement.
- 21st April 1999A wave has a period of 0.005 s. Calculate its frequency.
- 22nd April 1999State the difference between a natural satellite and an artificial satellite, and give one example of each.
- 23rd April 1999Name two structures found in a plant cell but not in an animal cell.
- 24th April 1999Why is the wall of the left ventricle thicker than that of the right ventricle?
- 25th April 1999A lamp is placed 10 cm from pondweed. Calculate the relative light intensity using relative light intensity = 1 / distance^2.
- 26th April 1999Name the hormone that causes the liver to convert stored glycogen back into glucose.
- 27th April 1999State one abiotic factor that can affect the population of fish living in a pond.
- 28th April 1999Classify crude oil as finite or renewable, and justify your answer.
- 29th April 1999What type of bonding is present in a compound formed between a metal and a non-metal?
- 30th April 1999Calculate the number of moles of sodium hydroxide in 200 cm3 of a 0.500 mol/dm3 solution.