4B60.15 - Mechanical Equivalent of Heat - Hammer a Block | Instructional Resources and Lecture Demonstrations

Code Number:

4B60.15

Demo Title:

Mechanical Equivalent of Heat - Hammer a Block

Condition:

Excellent

Principle:

Mechanical Energy Converted to Heat

Area of Study:

Heat & Fluids

Disclaimer

Equipment:

Infrared Camera, Wooden Block, Large Hammer.

Procedure:

Place the wooden block on the table with the IR camera pointing down onto it. Hit the block with a large hammer. Note the area of increased temperature where the hammer struck the block.

Place your hand on the table in the area under the camera for a few seconds and then remove your hand. The camera will be able to clearly see where your hand was for several minutes afterward.

References:

George M. Hopkins, "Heat Due to Friction", Experimental Science, p. 194.
Borislaw Bilash II, David Maiullo, "Mechanical Equivalent of Heat", A Demo a Day: A Year of Physics Demonstrations, p. 226.

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