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Describe thermal conduction

Thermal conduction is one of three types of heat transfer. It occurs when 2 objects are in contact and have a difference in temperature. The kinetic energy is passed on from the warmer object to the cooler o...
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Answered by Lakshan T. • Physics tutor
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Solve x^(2) + 7x + 6 = 0.

1) Factorise x 2 + 7x +6 Numbers that multiply to make +6: 6 and 1, -6 and -1, 3 and 2, -3 and -2 Which pair also add/subtract to make +7? 6 + 1 = 7 So factors are: (x+6)(x+1) 2) Solve value of x. (x+6)(x+1)...
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Answered by Rebecca H. • Maths tutor
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Explain how volcanic eruptions occur at destructive plate margins (4 marks usually).

Oceanic crusts are forced beneath the continental crust at a subduction zone because they are denser. Heat produced by friction turns the sinking oceanic plate into magma. This then tries to reach the surfac...
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Name two advantages and disadvantages of hormonal contraception?

One advantages of hormonal contraception are that, when used properly i.e. taken on time and regularly, they are more effective than physical barrier contraceptives such as condoms or diaphragms. However the...
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Answered by Sophie M. • Biology tutor
4791 Views

Describe two examples of the increased power of the state during World War One (4)

'Describe' questions are looking for historical, contextual, knowledge - tailored specifically to the question.For example the examiner will have hundreds of papers to mark and they are looking for specific ...
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Answered by James H. • History tutor
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