Investigating Energy Aim: To investigate how to make a cotton reel car move, using potential energy. Keywords: Elastic Potential Energy Elastic: Any object that is able to be deformed and returns to it's original state. In this lesson we investigated how the elastic potential energy stored within a rubber band is able to make a car move. We also investigated how elastic potential energy is able to cause a rubber popper to jump into the air. Rubber Poppers Our experimentation with the rubber poppers found that if placed on a surface, the elastic potential energy stored within an inverted popper was enough to cause it to fly high in the air. This is because rubber will revert back to it's original shape if it is deformed. The elastic energy released from this motion is converted into kinetic energy that launches the popper into the air. Cotton Reel Car The construction of the cotton reel car demonstrated how objects don't need to be turned inside-out in order to contain elastic potential energy. The energy stored in the rubber band increased as it was twisted. The longer it was twisted the more energy that would build up and the faster and further the car would go. This also meant that too much energy caused the car to spin uncontrollably.
Lesson Summary:
0 Comments
Leave a Reply. |
Views this weeks Weekly Blog Progress Report. Just press 'View on 'Scribd' and you will be able to read the document
Your browser does not support viewing this document. Click here to download the document.
|