If i assume that i could also rotate this one.
Spring constant of a rubber band.
A rubber band has a spring constant of 45 n m.
For my experimental setup i hung a rubber band from a support with a container tied to the bottom of the band.
Shoot at least five rubber bands for each stretch length.
Then using the scatter plot and a line of best fit students will determine the spring constant of the rubber band.
After you get the rubber band stretched just a little bit it is very spring like.
After each launch have your helper.
Rubber band spring constant.
Rubber bands apparatus selection of rubber bands including broken ones hung from retort stand weights with hangers a ruler action the students hang weights from the rubber bands to determine the spring constant of the rubber bands and how linear the stress strain relationship for the bands is.
Hooke s law and elastic potential.
Plot graph pf elongation versus weight.
Rubber elasticity refers to a property of crosslinked rubber.
Shoot more rubber bands in the same way except stretch them back to 15 cm 20 cm 25 cm or 30 cm.
Do it for different weights.
Rubber is a member of a larger class of materials called elastomers and it is difficult to overestimate their economic and.
It can be stretched by up to a factor of 10 from its original length and when released returns very nearly to its original length.
When the rubber band is pulled by a force of 9 8 n how far will it stretch and what is its potential energy.
Apply some small force on rubber band and note its elongation.
The rotational spring constant for this thicker band is not surprisingly higher than the normal sized rubber band with a value of 4 92 x 10 4 n m.
Description students will use isense software to record the displacement of a rubber band as weight is added.
They can estimate the young s.
F which represents force k which is called the spring constant and measures how stiff and strong the spring is and x is the distance the spring is stretched or compressed away from its equilibrium or rest position.
The minus sign shows that this force is in the opposite direction of the force that s stretching or compressing the spring.
This can be repeated many times with no apparent degradation to the rubber.
Rick michalka over 5 years ago this project is locked.
Slope of this line is the spring constant.
Spring constant tells you how much a spring elongates for a given weight applied within its limit.
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