- Describe what the following terms mean:
Temperature -
Heat - - Using your definition for temperature above, explain how a thermometer works to provide a visual representation of the temperature
- Thermometers in the past were filled with mercury but most are now filled with alcohol instead due to safety reasons. Why do you think alcohol is used instead or
water? - The simulator allows you to add the same amount of heat energy to different materials e.g. water, oil, iron, brick. If you are able to measure the temperature of these
materials as you are heating them would you predict that each will have the same temperature changes? Explain.
Experiment: - Position the Iron block on one of the ring stands and move a thermometer to the block to measure the temperature of it. Then click the Energy Symbols tab and begin
increasing the heat under the iron. Describe what you observe. - Predict what you would see if you are able to measure the temperature of the Iron block and Brick block as you supply the same amount of heat to each block.
- Click the reset button, then drag the iron block on one stand and the brick block on the second stand. Again, put a thermometer in both blocks to measure the
temperature of each. Click the Energy Symbols and Link Heaters tabs. Before adding any heat to the blocks, observe any differences in the blocks and provide a reason for this
Observation & Analysis: - Increase the temperature on the blocks and observe the thermometers and record observations
- If you wanted to use these experiment to get quantitative observations and create a graph showing trends, list the variables in such an experiment
Independent -
Dependent -
Control - - Repeat the comparison done with the blocks above, this time comparing the two liquids. Record your observations.
- Repeat again this time comparing water and iron. Records your results.
- What does your experiment tell you about water?
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Definition of temperature
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