Daily Practice · GCSE Science
May 1957 5-a-day
Every sheet in May 1957
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st May 1957State three factors that can limit the rate of photosynthesis.
- 2nd May 1957Explain why sweating cools the body down.
- 3rd May 1957The Arctic fox has small, rounded ears compared with the desert fennec fox, which has very large ears. State whether this is a structural, behavioural or functional adaptation, and explain how it helps the Arctic fox survive.
- 4th May 1957Explain, in terms of particle size, how reverse osmosis separates water from dissolved salt.
- 5th May 1957Write the formula of calcium chloride and explain the ratio.
- 6th May 1957Explain why aluminium cannot be extracted from aluminium oxide by heating with carbon.
- 7th May 1957Hydrogen reacts with chlorine to form hydrogen chloride: H2 + Cl2 -> 2HCl. Use the bond energies given to calculate the overall energy change for this reaction. Bond energies: H-H = 436 kJ/mol, Cl-Cl = 243 kJ/mol, H-Cl = 432 kJ/mol.
- 8th May 1957Name the catalyst used when an alkene reacts with hydrogen to form an alkane.
- 9th May 1957Name three greenhouse gases.
- 10th May 1957A kettle transfers 360000 J of energy in 150 s. Calculate its power in watts.
- 11th May 1957Give the equation linking energy transferred, charge flow and potential difference.
- 12th May 1957Who provided the evidence for the existence of the neutron, and roughly when relative to the nuclear model?
- 13th May 1957A force of 40 N is applied 0.25 m from a pivot. Calculate the moment.
- 14th May 1957A rectangular coil carrying a current is placed in a magnetic field, with its two long sides parallel to each other. Explain why the coil rotates rather than moving in a straight line.
- 15th May 1957Why does taking repeat readings and calculating a mean improve the data?
- 16th May 1957Name the plant tissue that transports water and dissolved minerals from the roots to the leaves.
- 17th May 1957State two ways measles is prevented from spreading.
- 18th May 1957Define homeostasis.
- 19th May 1957Give one example of variation that is caused purely by the environment rather than by genes.
- 20th May 1957Explain, in terms of electrons, why reactivity decreases going down Group 7.
- 21st May 1957Give two observations when lithium is added to water.
- 22nd May 1957State the value of the Avogadro constant and what it counts.
- 23rd May 1957Explain, in terms of bonds, why breaking bonds is an endothermic process.
- 24th May 1957In the Haber process, state the effect of removing some ammonia from the equilibrium mixture as it forms on the position of equilibrium.
- 25th May 1957Write the ionic equation for the precipitation reaction between barium ions and sulfate ions.
- 26th May 1957Write the equation linking power, energy and time, and rearrange it for time.
- 27th May 1957In a series circuit, the current through one lamp is 0.30 A. State the current through a second lamp in the same circuit.
- 28th May 1957A gas is heated in a sealed rigid container. Explain what happens to the pressure.
- 29th May 1957A runner completes a 400 m race in 52 s. Calculate her average speed, giving your answer to 3 significant figures.
- 30th May 1957Name the type of electromagnetic wave used by a television remote control.
- 31st May 1957Explain why a satellite moving in a stable circular orbit has a changing velocity even though its speed stays constant.