Lab 10
Work and Power
Ricardo Gonzalez
Josue Luna
April 5, 2017
The overarching goal of this experiment is to use known knowledge of work and power to measure real life situations.
1. Theory
We know that when we apply a force on a mass over a given distance, work has been applied by the source of the force. Also, when we we apply work, the power exerted is given by the amount of work divided by the time.
2. Procedure
Part 1
We began by setting up our experimental apparatus. A long wooden board was placed on top of a second floor outside through the railing. At the end of the board, a small pulley was pre-attached, however we ran a rope through it and let it overhang to the bottom. At the bottom, we attached one end of the rope to a backpack with a designated mass (m). Using gloves, we pulled up on the rope while another student simultaneously held down the end of the board to the floor and a third student would measure the time it took to raise the backpack. The pack was raised to the floor on the second story.
Part 2
1. Theory
We know that when we apply a force on a mass over a given distance, work has been applied by the source of the force. Also, when we we apply work, the power exerted is given by the amount of work divided by the time.
2. Procedure
Part 1We began by setting up our experimental apparatus. A long wooden board was placed on top of a second floor outside through the railing. At the end of the board, a small pulley was pre-attached, however we ran a rope through it and let it overhang to the bottom. At the bottom, we attached one end of the rope to a backpack with a designated mass (m). Using gloves, we pulled up on the rope while another student simultaneously held down the end of the board to the floor and a third student would measure the time it took to raise the backpack. The pack was raised to the floor on the second story.
Part 2
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