Search over 10,000 free study notes

As this is an isolated system and a simple pendulum starting at rest, at maximum height, all the energy is in potential energy. The known equation for potential energy is simply mgh (mass x acceleration d...

This could be a speaking question, where the student is asked to discuss the positives and negatives of automation, and to take one of these sides during a debate. I would go through generally useful spea...

The tri-cellular model shows how energy is transferred polewards via three cells of air circulation: the Hadley, Ferrel and Polar cells. The Hadley Cell involves the meeting of the trade winds in the Equa...

Firstly, I would discuss the various factors to consider with my student. I would go through all possible points of discussion, and then together we would decide on the three main factors. I would then di...

The central economic problem is scarcity which leads to an opportunity cost. In simple words human wants are infinite but resources are finite (having said that we need to distinguish between human wants ...