One method of energy transfer is by conduction. In this experiment you will compare the properties of conduction in different types of metal. To do this similar size rods of different types of metal are heated at one end while the rate of rise in temperature is measured and recorded at the other end.

 

  1. Assemble the apparatus as shown in the diagram. Use insulation tape to fix the temperature probes securely so that the end of each probe is in good contact with the rod. Hold in a boss and stand above the light bulb.

2.       Use a light bulb to supply heat to the rods. It is important that this bulb is placed centrally so that each rod is heated equally.

3.       Click the 'Launch' button to load the logging software

4.       Click on the Run Icon to begin logging. 

 

  1. Identify and label the set of data that corresponds to each of the metal samples/temperature probes.

2.       The results can be saved, printed or copied into your report document as required.

 

  1. How does the graph show the metals are getting hotter?

2.       List the metals in order, with the best conductor first. Explain your conclusion.

3.       How can you tell that energy travelled along the rod? Can you explain how this energy travelled?

4.       Why is it important that each sample of metal has the same size and shape?

5.       Describe another way in which heat could be supplied evenly to each sample.



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Education

Heat and Temperature

Sensing Science