Variables o Independent Variable: a quantity that you will vary and control E. G. angle of attack, chamber pressure or temperature, coefficient in algorithm, luminosity, gain O Parameter: a quantity that is set or otherwise determined which you will not vary but which needs to be recorded E. G. atmospheric pressure, constant in algorithm, battery voltage,… O Dependent Variable: A measureable output quantity of your experiment which is a function of the input variables and parameters E. G. reaction time, force, energy consumed temperature2 Variables z Independent Variable: A quantity that you will vary and control – E.G.; angle of attack, chamber pressure or temperature, coefficient in algorithm, luminosity, gain, ... z Parameter: A quantity that is set or otherwise determined, which you will not vary but which needs to be recorded – E.G.; atmospheric pressure, constant in algorithm, battery voltage,... z Dependent Variable: A measureable output quantity of your experiment which is a function of the input variables and parameters – E.G.; reaction time, force, energy consumed, temperature