Daily Practice · GCSE Science
December 1977 5-a-day
Every sheet in December 1977
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st December 1977Explain why the solvent level in the container must be below the pencil baseline.
- 2nd December 1977In the specific heat capacity practical, why is the block insulated?
- 3rd December 1977Describe the current-potential difference graph for a filament lamp.
- 4th December 1977State the difference between irradiation and contamination.
- 5th December 1977A shopping trolley has a mass of 25 kg. Calculate its weight, taking g = 9.8 N/kg.
- 6th December 1977A student wraps a coil of insulated wire around an iron nail and connects it to a battery. Name the device this creates, and state one way to increase its magnetic field strength.
- 7th December 1977Explain why red-shift observations support the idea that the universe is expanding, rather than Earth simply being at the centre of the universe with everything moving away from it.
- 8th December 1977Name the process that moves substances against a concentration gradient.
- 9th December 1977Name the vector that spreads the protist pathogen that causes malaria.
- 10th December 1977Explain, in terms of respiration, why a build-up of lactic acid causes muscle fatigue during vigorous exercise.
- 11th December 1977A man has genotype XY. State his sex, and state which sex chromosomes are found in the sperm cells he produces.
- 12th December 1977Why is the burette rinsed with the solution it is going to contain rather than with water?
- 13th December 1977State the relative mass and relative charge of a neutron.
- 14th December 1977Calculate the Mr of Ca(OH)2. (Ca = 40, O = 16, H = 1)
- 15th December 1977In the industrial extraction of aluminium, explain why the aluminium oxide is dissolved in molten cryolite rather than melted on its own.
- 16th December 1977Explain why increasing the surface area of a solid reactant increases the rate of a reaction.
- 17th December 1977Which reagent is added, and in what colour change, to test for chlorine gas?
- 18th December 1977Explain how solid carbon particulates released by combustion can cause global dimming.
- 19th December 1977A lamp is supplied with 60 J and transfers 6 J as light. Calculate its efficiency as a percentage.
- 20th December 1977Define specific latent heat of fusion.
- 21st December 1977A gardener pushes a mower with a force of 60 N through a distance of 8.0 m. Calculate the work done. Use W = F x s.
- 22nd December 1977A wave has a frequency of 50 Hz. Calculate its period.
- 23rd December 1977Explain, in terms of forces, why an orbiting satellite does not travel off in a straight line.
- 24th December 1977Give the equation linking magnification, image size and real size.
- 25th December 1977Give one advantage and one disadvantage of a stent.
- 26th December 1977Name the organelle in a plant cell where photosynthesis takes place.
- 27th December 1977State one risk factor linked to type 2 diabetes.
- 28th December 1977State what is meant by the term ecosystem.
- 29th December 1977Name one method used to sterilise fresh water during the production of potable water.
- 30th December 1977Describe metallic bonding.
- 31st December 1977Write the word equation for the reaction between zinc and hydrochloric acid.