18
Building a Thermometer

Building a Thermometer. Question What is a thermometer? Sketch a thermometer and briefly describe how your thermometer works

Embed Size (px)

Citation preview

Building a Thermometer

Question

What is a thermometer?

Sketch a thermometer and briefly describe how your thermometer works.

Build a Thermometer• The objective of this lab is to

o design, o build, o calibrate, and o test a thermometer.

• Design Plan due -------– This includes list of materials needed. Feel free to discuss your ideas with instructor during your planning stage.

• Lab construction – --------• Report Due ---------

  Steaming Boiling Warm Cold

Design Plan Uses a unique method that is easy to follow and includes trouble shooting suggestions.

Method is complete and easy to follow

Essential steps are there for someone else to replicate

One could not follow this method and make a thermometer

Documentation of work

Description of concepts considered in design and recorded all information as outlines in “Lab Notebook” instructions. Reports the range of thermometer.

Recorded all information as outlined in “Notebook” instructions. Reports the range of thermometer

Recorded essential information with little detail

Sketchy documentation

Calibration of Thermometer

Calibrates, tests, and measures accuracy.

Calibrates with at least 3 repetitions

Provides a scale No reliable calibration

The test! 

Measure environment specified by Instructor within 0.1 C

Measure environment specified by Instructor within 1.0 C

Measure environment specified by Instructor within 5.0 C

Measure environment specified by Instructor within 10 C or not all all

         

Examples

Link to video of explanation

Bimetal strip

Resistance Thermometer

Galileo Thermometer

Gas Thermometer

Liquid Crystal Thermometer

Rubric for Report  Exemplary Very Good Needs Work POINTS

AWARDED

POINTS 3 2 1  Introduction Clearly states the goal

that Good statement goal but lacks clarity.

Poor statement of goal  

Literature Review Minimum one page of background information that explain the principles on which your thermometer is built. Includes principles such as coefficient and kinetic energy

Minimum one page of background information that explain the principles on which your thermometer is built.

Doesn’t fully lay the foundation for the design.

 

Materials and Methods

Complete enough to understand how the lab is done without getting into too much detail. Includes method of calibration

Can understand how the experiment was conducted but not clearly stated. General calibration described

Too much detail or insufficient detail to obtain a clear picture of how the experiment was conducted. Little or no calibration information

 

Final Sketch or photograph of Thermometer

Calibration Data

Good use of results, data or observations to explain range and uses of your thermometer.% error

Calibration not replicated and very large % error

No calibration or % error reported.

 

Conclusions:How well did your

thermometer work?

Clearly report the usefulness of your thermometer, error analysis, and suggestions for improvement

Some report of the usefulness of your thermometer, error analysis, and suggestions for improvement

Lack of report of usefulness of your thermometer, error analysis, and suggestions for improvement

 

After Building and Calibrating

• Students make a presentation to the class to share their thermometer.

Assessment

• Sketch a thermometer and explain how it works.

What is Temperature?

• Now that you have built an instrument to measure temperature, how would you define temperature?

Temperature Basics

• Temperature of an ideal gas is directly proportional to the average translational kinetic energy of the molecules of gas.

• Temperature is important as it provides a way to measure the thermal radiation of an object

Land Surface Temperature Anomaly

Land Surface Temperature Anomaly video : http://svs.gsfc.nasa.gov/vis/a000000/a003900/a003901/

Add GISStemperature2011_withcolorbar. Mp4 to show video within PowerPoint

What is the difference between heat and

temperature?Place your hand on each object on the table and then arrange them in order of hottest to coldest.

Images: Microsoft PowerPoint Clipart

Heat (q)• Heat (q) is the energy transfer from one object to

another. The heat of your hand transferred to the

metal object giving you the impression that the object is cold.

• Heat(q) = mass of substance (m) x Specific Heat of substance (c) x the change in Temperature (T)

q = m x c x T