The Effect Length Has on a Pendulum's Period
Prediction:
I predict that the shorter the length of string, the shorter the time it takes for the pendulum to complete one period. The longer the length of the string, the longer the time it will take to complete one period.
Equipment needed for experiment:
-Clamp
-Stopwatch
-Bob/Ball
-Metre ruler
-String
Obtaining the results:
I will be measuring the length of the string in 10s, so that I can obtain a wider range of results. I will then take 10 readings, and calculate the average time of osocilation for each length, making it a fair test. I also need to take into account what factors will affect this experiment.
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This is what I predicted at the beginning of the experiment.
Evaluation:
I think the method I used was a good way of carrying out the investigation, as it was a fair test. The results were quite accurate, but could be more accurate by doing an average of more than five different sets of results. This could also be a fairer test by making sure the string the pendulum is attached to is exactly 90° (right-angle) from the clamp stand.
Doing background research into the pendulum I found that Galileo was the first to properly experiment on this work. He discovered that a pendulum with a length of string four feet long would have a period that would be twice as long as a pendulum with a string one foot long.
So if the pendulum had a string that was 40cms long, it would be twice as long as a pendulum with 10cms.
If the period for a pendulum of 40cms was 1.4, then the time of the period for the pendulum of 10cms should be
Results: The experiments required the starting, ending, and total times of each run number. To keep the units for time similar, seconds were used. An example of how to convert minutes to seconds is: 2 "minutes" x "60 seconds" /"1 minute" ="120" "seconds" (+ number of seconds past the minute mark)
Count the number of heartbeats in 15 seconds by tapping a pencil on a piece of paper.
Step 4:Make sure the person holds the clothespin between their thumb and index finger and squeeze until the two ends meet.
10. Then wrap the ponytail into a really tight bun and secure with a rubber band. (See Figure 1.9)
5. Add Hcl, as soon as it mixes with the ( ), start the stopwatch
Day 2: Carefully remove the gummy bear from the cup of water and use a paper towel to dry it off to prevent it from dripping all over the place. Record your data in the correct portion of the chart. Determine the amount of change for each measurement and record it in the chart.
I am going to use an elastic band and release it from different tensions I will then measure how far it ‘flies’.
Raise both hands overhead and slam the SandBell or Medicine Ball to the floor. Do this 10 times.
1 and then divide the result by 10, in order to eliminate as much time
You must first go and find an area where you can repel down that has 3 places to tie off from. You must find 3 sturdy places that will not give way once you start to repel down. Some examples would be thick trees, steel beams, and concrete pillars. Then you must tie a figure eight knot at the end of your rope that you are repelling off from. Then you will wrap the rope around the secure structure five times and slip a carabineer in the figure eight and attach and lock it to the other end of the rope. Pull the rope so it is tight and there is no chance of slipping. Next find the other two places to tie off from and go ahead and tie the webbing into water knots around the tie off points and attach a carabineer and lock it to the webbing from the rope. Where you attach the carabineer to the rope you should also tie a figure eight knot in the rope. Once you have tied everything up you must then go ahead and test the ropes to make sure they will not slip.
What’s 10th? It’s moving from start to finish in 4 minutes 37 seconds, while others took anywhere from 4 minutes 29 seconds to 6 minutes 2 second. It’s qualifying.
Death and terror, the inevitable of demise of everything and everyone, there is no escape. It bugs us everyday to know your going to die, but you just don’t know when, just like the pendulum hangs over the main character in the story.
* If a stopwatch is used instead of a standard watch to time the 1 -
A pendulum, is what is used in many rides, generally in, Disney, Knott's Berry, and 6 Flags. A pendulum makes the ride move back and forth in a swaying motion like a swing. It is fixed at a point so gravity propels the object swing back and forth. There is a concept of an ideal period in a pendulum. The time it takes for a pendulum to swing back to its original position where it started is what you would call, an “ideal period”. The group will be determining whether or not it is possible for a pendulum of 45 degrees or less to have an constant/ideal period of 1.5 seconds.
The athlete warms up for approximately 10 minutes .The assistant gives the command “GO”, then starts the stopwatch and the athlete or athletes begin the test. The assistant keeps the athlete informed of the remaining time at the end of each lap (400m). The