Daily Practice

GCSE Science

27th March 1990

5 questions · GCSE · 584 questions in this band

1
Electromagnetic Induction and Transformers
A transformer's primary coil is connected to a 12 V supply and has 60 turns. Calculate the number of turns needed on the secondary coil to produce an output of 3.0 V.
2
Space Physics
State the eventual fate of a star with a much greater mass than the Sun, after it explodes as a supernova.
3
The Solar System, Orbital Motion and Satellites
State two uses of artificial satellites.
4
Red-shift and the Expanding Universe
State what is meant by red-shift.
5
Biology Required Practicals and Data Analysis
Why must the same volume of solution be used in every tube in an enzyme investigation?

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