H2 Physcis on energy change

• Tanbrenda

  20 Apr 10, 20:14

  I am wondering the energy change of this scenario, what energy change (conversion) takes place when we blow air into a balloon and then just release it later until it reaches the ground?

  I am wondering is it elastic potential energy --> gravitational energy (due to the height) --> kinetic energy (moving downwards)--> sound + heat energy ?

  Do any one know this? Thanks 

• wee_ws

  20 Apr 10, 22:28

  Hi,

    You got the idea mostly :)

    This site also discusses about the topic:

    http://answers.yahoo.com/question/index?qid=20100216060608AAvqYQu

    Thanks.

  Cheers,
  Wen Shih