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This question is which would ask students to explain with reference to two sources (nearly always quotes from historians) which interpretation of a key event they most agree with. Candidates are often adv...

Before figuring out the revision technique that suited me, I explored a range of different methods for memorizing. There are mind-maps, flash-cards, writing things out and covering them, and so many more....

The critical path is the path from the start to the end event continuously, with the end of one activity forming the start of the next. There is zero float and the project will be completed in the minimum...

Absorbed energy results in electron excitation. De-excitation then occurs, whereby electrons fall back down to the ground state. Energy levels are quantised, therefore each line represents a specific freq...

The photoelectric effect is one of the first pieces of experimental evidence of quantum mechanical phenomena. It describes how a material absorbs light and result in emission of electrons. Using a classic...