Daily Practice · GCSE Science
February 1979 5-a-day
Every sheet in February 1979
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st February 1979Name the two additional products that can form during the incomplete combustion of a hydrocarbon fuel.
- 2nd February 1979Give the equation for efficiency in terms of energy.
- 3rd February 1979Calculate the mass of 0.5 cubic metres of a material of density 2400 kilograms per cubic metre.
- 4th February 1979A cyclist rides 300 m north then 300 m back south to the start. State the total distance travelled and total displacement.
- 5th February 1979Sound waves travel through a steel rail at approximately 5900 m/s. A sound wave sent along the rail has a frequency of 2950 Hz. Calculate its wavelength.
- 6th February 1979State the eventual fate of a star with a much greater mass than the Sun, after it explodes as a supernova.
- 7th February 1979State the function of the mitochondria.
- 8th February 1979Which component of blood transports carbon dioxide, urea and hormones?
- 9th February 1979A lamp is placed 10 cm from pondweed. Calculate the relative light intensity using relative light intensity = 1 / distance^2.
- 10th February 1979Name the gland often called the body's master gland.
- 11th February 1979A student places ten 1 m x 1 m quadrats at random across a school field of area 3000 m2 and counts a total of 45 dandelions across all ten quadrats. Estimate the total number of dandelions on the field.
- 12th February 1979Classify crude oil as finite or renewable, and justify your answer.
- 13th February 1979Why can metals conduct electricity when solid?
- 14th February 1979Calculate the number of moles of sodium hydroxide in 200 cm3 of a 0.500 mol/dm3 solution.
- 15th February 1979State whether forming a new chemical bond requires energy or releases energy.
- 16th February 1979State the number of covalent bonds a carbon atom forms in a saturated hydrocarbon.
- 17th February 1979Give two human activities that increase the amount of greenhouse gases in the atmosphere.
- 18th February 1979A 5.0 kg object is lifted 3.0 m. Calculate its gain in gravitational potential energy (g = 9.8 N/kg).
- 19th February 1979What is the difference between alternating and direct current?
- 20th February 1979What observation showed that the atom is mostly empty space?
- 21st February 1979State the equation that links pressure, force and area.
- 22nd February 1979In a simple d.c. electric motor, state the name and function of the component that reverses the current in the coil every half turn.
- 23rd February 1979In the microbiology practical, why are agar plates incubated at 25 degrees Celsius in schools rather than at 37 degrees Celsius?
- 24th February 1979State two ways that bile aids the digestion of fats.
- 25th February 1979Why can HIV not be treated with antibiotics?
- 26th February 1979Name the gland that monitors and controls blood glucose concentration.
- 27th February 1979Explain why genetic engineering can introduce a new characteristic in a single generation, while selective breeding cannot.
- 28th February 1979State the relative charge of a neutron.