Daily Practice - GCSE Science
Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
26th December 2024
- 1The Electromagnetic Spectrum
A microwave oven uses electromagnetic waves with a wavelength of 0.12 m. Calculate the frequency of these waves (speed of light = 3 x 10^8 m/s).
- 2Magnetism and Electromagnetism
A student wraps a coil of insulated wire around an iron nail and connects it to a battery. Name the device this creates, and state one way to increase its magnetic field strength.
- 3Magnetism and the Motor Effect
A current-carrying wire experiences a force of 1.2 N when placed at right angles to a magnetic field of flux density 0.40 T, carrying a current of 6.0 A. Calculate the length of wire in the field.
- 4Electromagnetic Induction and Transformers
State the difference between an alternator and a dynamo.
- 5Space Physics
Name the region of the Solar System where most asteroids are found.
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