{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Conservation of Energy

# Conservation of Energy - Conservation of Energy...

This preview shows pages 1–2. Sign up to view the full content.

Conservation of Energy Introduction/Theory The purpose of this experiment is to examine the theory of conservation of energy, which states that the total energy of a system is equal to the sum of the kinetic and potential energies at any given time. Kinetic energy is calculated by taking 1/2mv 2 , which is equal to the total energy mgh when dropping an object through a photogate sensor, allowing us to calculate its velocity by taking the square root of 2gh, where h is the height above the photogate sensor from where the object is released. Free Fall The displacement of an object on the horizontal x-axis has no effect when calculating the potential energy of an object, because in the absence of kinetic energy, the only force acting on the object is gravity. Therefore changing the magnitude of the height only alters the potential energy of an object. Diameter of tube – 2.95 cm Table of velocities Observed Velocities H=10cm H=20cm H=30cm 1.355 1.923 2.492 1.368 1.929 2.516 1.357 1.914 2.507 1.347 1.928 2.490 1.350 1.933 2.489 Theoretical v 1.359 1.928 2.50 Standard Dev. .01717 .00211 .000639 Examining our data will show that our results are very close to the calculated velocities (which were calculated using v=sqrt(2mh) ). Friction is not a factor in this experiment, except for the negligible amount due to air resistance. When dropping a paper tube from

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### Page1 / 3

Conservation of Energy - Conservation of Energy...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online