Graphs - line of worst fit and error bars

y13 Pendulum experiment

This experiment is easily performed at home. All you need is a piece of string and some plasticene to make the pendulum. You can measure the length with a measuring tape. Your moblie phone will have an adequte timer. You can enter the readings into Excel which will draw the graph for you.

  

Y12 Uncertainties

Experiment - Voltage and a wire

Gradient of Graph (Ohm's Law)

Examples of circular motion

y13 Angular Frequency