Write the slope of your F/x calculations for each spring under the matching color on the whiteboard on the right.
Contents of this post
Spring constants
As we saw yesterday, the relationship between the force applied to a spring and the stretch of the spring is linear. The slope of the F/ Δ x plot is
F = k* Δ x
which can be rearranged for the spring constant:
k=F/ Δ x
and the units of the spring constant must be N/m.
Review: Video showing the calculation of a spring constant
Similar to the lab we did in class, only this one uses the force of gravity between the earth and a hanging mass.
Calculating the energy in a spring
We demonstrated this both with algebra/geometry and with integrals in calculus. Vide of this will appear below soon.
Calculation video will appear here soon.
Flipping physics video.
Class/homework
In your textbook, Page 152, Problems 21-25. Complete tonight so we can whiteboard them tomorrow.
Problem 22: Here is a video of helper springs at work: https://youtu.be/GQs79EIw81M (this video is set to not allow embedding in other web sites. Below is another video that did allow embedding.