Daily Practice

GCSE Science

13th February 1981

5 questions · GCSE · 584 questions in this band

1
Space Physics
Explain how elements heavier than iron, such as gold, are created and distributed through the universe.
2
The Solar System, Orbital Motion and Satellites
Explain why a satellite moving in a stable circular orbit has a changing velocity even though its speed stays constant.
3
Red-shift and the Expanding Universe
State what red-shift shows about the motion of most distant galaxies.
4
Biology Required Practicals and Data Analysis
Why must the same volume of solution be used in every tube in an enzyme investigation?
5
Cell Biology
A student views a red blood cell at a magnification of x2000. The image of the cell measures 20 mm across. Calculate the real width of the cell, giving your answer in micrometres (um).

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