Additional Info

• ID Code: C8-11
• Purpose: Shows that when energy disappears from the center of mass motion it may be converted into internal energy
• Description: Hold the balls horizontally with the spring relaxed and drop; it should produce a high rebound. Then drop at an angle of about 45 degrees to the horizontal. The device will not rebound very high, but will develop a lot of internal energy, as evidenced by lots of spring vibration.

  This device can also be used as a simple model of energy in a two-atom molecule. Erik Neumann has created a simulation of this demonstration for this purpose as well. It can be found at https://www.myphysicslab.com/springs/molecule2-en.html .

• Availability: Available
• Loc codes: C8