Chem Lab
Purpose: To find out if the weight of different objects effects the acceleration when falling.Trial Time (s) # of dots Frequency (1/s) Period (s)Trial Mass (g) Time (s) Distance (m) Avg speed (m/s)
All of our weights when rounded to one significant digit took 2 seconds to fall meaning there is only a slight difference between them, which is caused by human error because they should have all taken the same exact time to hit the ground. For example, a feather will fall slower than a grain of sand even though they both weigh almost nothing. This just means we accelerated with our pulling and it did not stay constant. y = Number of dots / TimePeriod = Time / Number of dotsAverage speed = meters / secondsQuestions:1. The second part of the lab we took 4 different weights to see if any would fall faster and just counted up the amount of dots and multiplied by . In this lab we first found out how often the recording timer made a dot and on average it was one dot per . What is the possible source of error in the measurement of the period of the recording timer?A: The speed we pulled the paper threw, if the machine wasn't set well and the dots weren't recording, if it wasn't clamped down well and it was moving2. The only thing that will vary the speed of the object when pulled by gravity is the resistance. Is there a difference in the spacing between the dots? What is this indicative of? A: Yes there is. How do the speeds of the various falling masses compare with each other?A: They are all generally the same and should be the same if all of our measurements were perfect. Conclusion: As a result of this lab I have concluded that no matter what the mass of something is it will fall at the same speed.
Common topics in this essay:
Calculations Frequency,
Data Table,
Distance Avg,
,
Materials Procedure,
data table,
recording timer,
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Acceptance Essays
