Dark energy is a mystery so daunting that it stretches and strains our most robust theories. The universe is expanding, ...

Professor Brian Cox gives an introduction to speed. He defines what is meant by speed and how to calculate speed by applying the ‘distance divided by time’ equation.

Some questions in the exam will require you to recall and apply equations you have learned in class. Other questions will ask you to use the ‘Physics Equation Sheet’. This is a set list of ...