Daily Practice - GCSE Science
Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
18th June 2023
- 1Electromagnetic Induction and Transformers
A transformer has a primary current of 2.0 A and a primary voltage of 230 V. The secondary voltage is 460 V. Assuming the transformer is 100 percent efficient, calculate the secondary current.
- 2Space Physics
State what a nebula is, and explain its role in the life cycle of a star.
- 3The Solar System, Orbital Motion and Satellites
State what provides the centripetal force that keeps a planet in orbit around the Sun.
- 4Red-shift and the Expanding Universe
State how the amount of red-shift is related to a galaxy's distance from Earth.
- 5Biology Required Practicals and Data Analysis
In the microbiology practical, why are agar plates incubated at 25 degrees Celsius in schools rather than at 37 degrees Celsius?
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