Physics (AS & A Level) · Oct / Nov 2017 · Paper 11 · Question 3

An ion is accelerated in a vacuum by a series of electrodes. A graph of the power supplied to the ion is plotted against time. What is represented by the area under the graph between two times?

1. Athe average force on the ion
2. Bthe change in kinetic energy of the ion
3. Cthe change in momentum of the ion
4. Dthe change in velocity of the ion

As printed in the paper