Daily Practice

GCSE Science

30th March 1993

5 questions · GCSE · 584 questions in this band

1
Space Physics
Name the force that keeps the planets in orbit around the Sun.
2
The Solar System, Orbital Motion and Satellites
Explain, in terms of forces, why a satellite in a stable orbit does not fall towards the Earth or fly off into space.
3
Red-shift and the Expanding Universe
Name the model of the origin of the universe that is supported by red-shift observations.
4
Biology Required Practicals and Data Analysis
Name the apparatus used to estimate the population of a slow-moving or non-moving species in a field.
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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