Monday, 30 June 2014 11:04

## I5-03: MECHANICAL EQUIVALENT OF HEAT - JOULE'S METHOD

• ID Code: I5-03
• Purpose: Determine the mechanical equivalent of heat.
• Description: Turning the handle with weights hanging from a cord wrapped around the copper cylinder requires a calculable amount of mechanical energy. This energy is converted into heat in the copper cylinder and the water bath, raising their temperature. The constant of proportional, which is the mechanical equivalent of heat, can be calculated using these two measurements. The device counts turns, so you can continue to lecture while cranking, typically 100-150 turns. The result is generally good to better than ten percent. (Note that when you turn the handle the heavy weight should be lifted off the floor, so the net frictional force causing the heating of the cylinder is the difference between the weights on the two ends of the cord.)
• Availability: Available
• Loc codes: I5, I0
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Demonstrates that heat can be produced from mechanical work Read More
• #### I5-02: TRANSFORMATION OF MECHANICAL ENERGY INTO HEAT

Demonstrate transformation of mechanical energy into heat. Read More
• #### I5-03: MECHANICAL EQUIVALENT OF HEAT - JOULE'S METHOD

Determine the mechanical equivalent of heat. Read More

• #### I5-21: HEATING AIR BY COMPRESSION

Demonstrate heating air by compression. Read More
• #### I5-22 FIRE SYRINGE

Demonstrates heating air by compression Read More
• #### I5-31 STEAM ENGINE - STATIONARY

Working model of a steam engine Read More
• #### I5-32: STIRLING ENGINE

Demonstrates a Stirling engine Read More
• #### I5-33 STEAM ROLLER

Toy steam roller with real steam engine Read More
• #### I5-41: ENDOTHERMIC REACTION - ENTROPY

Aid a discussion of entropy. Read More
• #### I5-51: SPECIFIC HEAT - ALUMINUM AND COPPER

Illustrate calorimitry and to determine experimentally the specific heats of aluminum and of copper. Read More
• #### I5-52: ELECTRIC CALORIMETER

Determine the equivalence between electrical energy and heat energy (the electrical equivalent of heat). Read More
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