Case+study+planning

PLANNING

• What are you investigating? • List equipment, mention why you chose that equipment and draw diagram. • What are you measuring? • What are the dependent and independent variables? • How are you measuring and over what range? • How many measurements? • Is your experiment a fair test? • Have you considered all safety aspects? • How are you presenting data  – Table (how many Significant Figures for data?)   – Graph   • Uncertainties? • Include units throughout  • YOU CAN PERFORM EXPERIMENT IN A GROUP BUT YOUR PLANNING WRITE UP MUST BE IN YOUR OWN WORDS   • Use your coursework marking grid

__ Planning Structure __

__ Investigation __ __ Equipment __ __ Procedure __ __ Table of results __
 * Diagram in pencil
 * Include prediction
 * Step by step
 * Pencil and ruler



__ From exam board material __

• Indicate how you intend to use the data that you collected. For example, you could write:  – I will plot stress against strain and use the gradient of the linear part to find the Young modulus. • Include a diagram showing the arrangement of the apparatus that you will use. Mark important distances on this diagram and, in particular, mark any distances that you will measure. • Finally, remember that your plan should show logical thought by describing what you intend to do in sequence. The plan should be written in the future tense but this is not essential.

__ To consider __

• Water bath  – Keeps temperature regulated for long periods of time   – Only provided temperatures are 30, 40, 50 and 60 degrees Celsius   • Direct heat method   – Hard to maintain temperature   – Can select a greater range of temperatures   • Also Ice bath available   • Rubber squash ball does require a long time to heat   – Same heating time for each temperature? • Can drop from greater than 1 m height for higher (proportionally) bounce distance.