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There are three kinds of nuclear radiation that you need to know for GCSE physics, and each is considerably different from the others. Firstly, alpha radiation: this is when a chunk of the nucleus is emit...

I would begin by instructing them to draw a diagram of the problem. This would be of a cliff, labelled height s_y, with an arrow representing the ball being thrown from the top. This should be l...

Initially the air resistance (r) is low, and the force due to gravity (mg) is high. These forces are unbalanced so the skydiver accelerates downwards. (mg > r)As the velocity increases the force of air...

Standing waves are produced from the superposition of 2 progressive waves with the same wavelength, travelling in opposite directions. The pattern consists of nodes and antinodes. Nodes are formed from d...

Sometimes it is more useful for us to represent a vector in terms of other vectors added together. For example, we can split a vector into the vectors pointing in the direction of our axes, we call these ...