Follow
Tuesday, 17 June 2014 13:45

F3-02: SURFACE TENSION - BALLOONS

Additional Info

  • ID Code: F3-02
  • Purpose: demonstrate surface tension in a counterintuitive way.
  • Description: Use two identical balloons. Blow up one balloon on the tube and clamp it. Then blow up the other balloon to a different size and slip it onto the other end of the tube.

    Q: When you remove the clamp, what will happen?: (a) the small balloon will get smaller and the large one larger, (b) the two balloons will become equal, or (c) they will stay the way they are.

    A: The small balloon will blow up the larger one, and get smaller, due to surface tension effects. The rubber is thicker in a smaller balloon, and thus produces greater surface tension.

  • Availability: Available
Read 747 times Last modified on Monday, 20 July 2015 09:34
  • 1