Department of Physics
VILLAFLOR, KIM MICHAELA B.
EMG/3
PHY11-2L/B4
2009100103
GROUP NO.5 504
DATE OF PERFORMANCE: MAY 3,2013
DATE OF SUBMISSION: MAY 10,2013
INSTRUCTOR
Analysis:
The work done by the fan cart is not constant. Because the work is directly proportional to the displacement given a constant force while power is indirectly proportional to work. Therefore we can conclude that power is also directly proportional to the displacement given a constant force. If the applied force is constant as the work rises so does the displacement and power as shown in the experiment. In the second part of the experiment when an object is lifted up in a curve motion its gravitational potential energy increases. Based on the experiment we conclude that the work done on the curve path is directly proportional to the gravitational potential energy.
Conclusion:
Using the data taken from 4 trials, we have computed for the power done by the fan cart by using the formula of work (W=Fs), and power (P=Work/time). From the results that we have come up with we have proved that the work is directly proportional to the force acting on a body and the displacement, and that the power is directly proportional to work, but inversely proportional to time. On the second part of the experiment we have to compute for the work but this time along a curved path. We conducted 4 trials with an incrementation of 20° per trial. Using the formula given we computed for the work done (W=wL(1-cosΘ)). With the results that came up after the experiment we can say that the angle is proportional to the work done.
Related Discussion:
Surface energy
Contact angle measurements can be used to determine the surface energy of a material. Here, a drop of water on glass.
Surface energy quantifies the disruption of intermolecular bonds that occur when a surface is created. In the physics of solids, surfaces