Pipe Pops its Cork due to Heating

A wheel, a motor with an attached pipe, 2 allen wrenches, and hinged wooden slats

Concept Overview:

1. Conversion of mechanical work into heat

Lecturer Demonstration

Step(s) to Follow	Expected Result
1. Place wooden slats around tube. 2. Squeeze tightly (but not so tight as to stall motor) 3. Use foot pedal to turn on motor 4. Wait.	Friction between the tube and the wooden slats will heat the metal of the tube. This, in turn, will heat the water inside the tube to the point of evaporation. A build up of pressure will blow the stopper out of the tube.

Step(s) to Follow

Expected Result

1. Place wooden slats around tube.

2. Squeeze tightly (but not so tight as to stall motor)

3. Use foot pedal to turn on motor

4. Wait.

Friction between the tube and the wooden slats will heat the metal of the tube. This, in turn, will heat the water inside the tube to the point of evaporation. A build up of pressure will blow the stopper out of the tube.

Take care not to point the tube at a person.