Daily Practice

GCSE Science

20th July 1990

5 questions · GCSE · 584 questions in this band

1
Space Physics
Explain, in terms of forces, why an orbiting satellite does not travel off in a straight line.
2
The Solar System, Orbital Motion and Satellites
State the name of the force that keeps a satellite in orbit around the Earth.
3
Red-shift and the Expanding Universe
State, in one sentence, what the Big Bang model proposes about the early universe.
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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