Rubber Band Stretch Experiment

The water temperature x axis.

Rubber band stretch experiment.

Stretch your science knowledge with this experiment that defies the laws of physics. The mass hanger is hung from the band and an measurement of extension taken. If you have conducted this experiment correctly you will notice the band s temperature rise when you stretch it and you will notice the temperature drop when you relax the band. Measure carefully its stretched length with a ruler.

In the end you should have one graph with three lines each representing a different trial with a different rubber band. Will heat make a rubber band expand and get longer or contract and get shorter. To see this in action begin by suspending a rubber band vertically then attach a weight to it. A strong rubber band may require more quarters a weaker.

The rubber band is hung from the clamp stand and two points are marked on the band with the pen. One such experiment is the effect of heat on a rubber band. While most objects expand when heated a rubber band contracts. But just how much energy does a rubber band have.

The rubber band changes temperature for a different reason 1 than the traditional heat pump but the effect is easy to sense and the test equipment doesn t require a. Shoot at least five rubber bands for each stretch length. Repeating the experiment a total of three times will help you determine if your findings are consistent and reliable. Supplies an empty 2 liter soda bottle permanent marker scissors pencil small thin rubber band a handful of quarters 20 25 tape paper clip hot tap water ice cubes large shallow.

The gap between the two marks will denote the extension value and so one mark should be drawn near the top and one near the bottom of the band. In this experiment you will find out how the stretching of a rubber band affects the amount of energy that springs out of it. Shoot more rubber bands in the same way except stretch them back to 15 cm 20 cm 25 cm or 30 cm. You want the rubber band to visibly stretch out when you hang the quarters from it but not so much that it hits the bottom of the bottle.