#13 Magnetic Potential Energy Lab

Magnetic Potential Energy Lab

Introduction:

To verify that conservation of energy in this system, we set up the air track as the frictionless surface. First, we find the magnetic repulsion force between two magnetic. Then verify conservation of energy.

Experiment:

First of all, we raise one side of the air track then use logger pro to calculate the magnetic repulsion by different angle with the  different distance it make. By the way, we download some app to phone that can make us measure the angle easily

                                  

We collect 8 distance from 8 different angle we set up

To find magnetic repulsion force 

F= mass of the air track glider *g*sin(angle)

R, Force relationship date 

then we do the linear fit in the logger pro  = Ar^B

And now we are able to verify the conservation of energy.

We put on the motion sensor and set it up to record 30 measurement per second, and also attach the aluminum on the air track glider for senor to collect the date.

Let the air track horizontally and push it slowly run to the motion senor but do not tough the magnetic at the closest point to the magnetic.

Then we get time, velocity, and acc 

and we are able to calculate our KE U and Total Energy

then we graph it

Conclusion:

In the first part of the experiment shows that the relationship between the distance and the magnetic repulsion force. It perfectly fit in the linear fit of Ax^B

 In second experiment, we except the total energy stay same, but the few graph we make early shows that it is a little be different then we keep fix it and get this final result. It still seem that the total energy have change when the cart close to the magnetic. We think that there might have some error when the experiment going or there are some other force doing in the system.