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fandomhigh2005-10-14 09:21 am
equalsmcsquared.livejournal.com) wrote in fandomhigh2005-10-14 09:21 am
Entry tags:
Physics
*The classroom probably smells strongly of lemons. And the teacher is exhausted, but giddy in the way only geeks can be.*
Hello, everyone. Coffee and snacks are in the back next to the roster. And sorry about the lemon overdosage, but believe me when I say the momento mori would have been even worse.
Today we will be doing an experiment on the acceleration of gravity. Pair up, do the lab, and you can leave.
*This experiment uses the free fall apparatus set up in the back room (the tall pipe with the heavy tripod base and spark timer). Run the wax coated paper up from the bottom and through the top of the apparatus with the wax coated side out (it should be on the front of the support pipe, just in front of the wire next to the pipe), use the chained on clip to hold it taut and position the paper slightly off center so you can make more than one run on each piece of paper. Turn on the electricity (both the large panel and the spark timer) and hang the plum-bob (the string with the bolt on one end), with the pointed end up, on the bottom of the blue magnet, point to point.*
*Using the leveling screws at the base, center the bolt exactly between the wires. Replace the plum-bob with the falling body (pointed end up). Make sure that the timer is turned on for at least a minute and leave the master switch on until you are done with all of your trials. Slightly before one of your group members turns off a circuit breaker on the electrical panel, another member should press AND HOLD the spark switch on the spark timer.*
*The same person should not do both as this could lead to a very shocking experience! This should produce a series of spark dots on the waxed paper and if the spark switch is held down too long, it will also produce flames which will quickly consume your data. Using the method of differences, determine the acceleration of gravity. NOTE: You will need to use this method twice, the first time to get velocity and the second to get the acceleration. Average this second set to get the acceleration of gravity. The spark timer produces 60 (0.1) sparks per second. You should make at least three trials and at least one must be worked out by hand.*
Hello, everyone. Coffee and snacks are in the back next to the roster. And sorry about the lemon overdosage, but believe me when I say the momento mori would have been even worse.
Today we will be doing an experiment on the acceleration of gravity. Pair up, do the lab, and you can leave.
*This experiment uses the free fall apparatus set up in the back room (the tall pipe with the heavy tripod base and spark timer). Run the wax coated paper up from the bottom and through the top of the apparatus with the wax coated side out (it should be on the front of the support pipe, just in front of the wire next to the pipe), use the chained on clip to hold it taut and position the paper slightly off center so you can make more than one run on each piece of paper. Turn on the electricity (both the large panel and the spark timer) and hang the plum-bob (the string with the bolt on one end), with the pointed end up, on the bottom of the blue magnet, point to point.*
*Using the leveling screws at the base, center the bolt exactly between the wires. Replace the plum-bob with the falling body (pointed end up). Make sure that the timer is turned on for at least a minute and leave the master switch on until you are done with all of your trials. Slightly before one of your group members turns off a circuit breaker on the electrical panel, another member should press AND HOLD the spark switch on the spark timer.*
*The same person should not do both as this could lead to a very shocking experience! This should produce a series of spark dots on the waxed paper and if the spark switch is held down too long, it will also produce flames which will quickly consume your data. Using the method of differences, determine the acceleration of gravity. NOTE: You will need to use this method twice, the first time to get velocity and the second to get the acceleration. Average this second set to get the acceleration of gravity. The spark timer produces 60 (0.1) sparks per second. You should make at least three trials and at least one must be worked out by hand.*