What is a chain reaction?
When neutrons from one reaction fire off to cause further reactions.
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Related Physics GCSE answers
All answers ▸Two identical objects have a charge of magnitude q. If r is the distance bethween them, what should their mass be so that the objects are balanced.
In 5V circuit has two 2 Ohm resistors in parallel, what is the current passing through each resistor?
What is the reaction force? (eg from the ground or table)
The loudspeaker produces a sound wave with a frequency of 850 hertz and a wavelength of 0.4 metres. Calculate the speed of this sound wave. Give the unit