Question

1. You measure the Gravity constant which is g= 9.8 m/s^2. If your experiment yields a value for g=8.85 m/s^2, what is the percentage error in the value of g? 2. What precise meaning do you attach to the statement r = (24.0 ± 0.3) mm, where r is the radius of a tube? 3. How do you reduce the amount of error in your experiment? 4. Convert 1.75 liters to cubic centimeters. 5. List 3 different units that can be used to specify each of the following: length, mass, volume, and density. 

          1. You measure the Gravity constant which is g= 9.8 m/s^2.
If your experiment yields a value for g=8.85 m/s^2, what is
the percentage error in the value of g?
2. What precise meaning do you attach to the statement r =
(24.0 ± 0.3) mm, where r is the radius of a tube?
3. How do you reduce the amount of error in your
experiment?
4. Convert 1.75 liters to cubic centimeters.
5. List 3 different units that can be used to specify each of
the following: length, mass, volume, and density.
Show more…
1. You measure the Gravity constant which is g= 9.8 m/s^2. If your experiment yields a value for g=8.85 m/s^2, what is the percentage error in the value of g? 2. What precise meaning do you attach to the statement r = (24.0 ± 0.3) mm, where r is the radius of a tube? 3. How do you reduce the amount of error in your experiment? 4. Convert 1.75 liters to cubic centimeters. 5. List 3 different units that can be used to specify each of the following: length, mass, volume, and density.

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University Physics with Modern Physics
University Physics with Modern Physics
Hugh D. Young 14th Edition
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1. You measure the Gravity constant which is g= 9.8 m/s^2. If your experiment yields a value for g=8.85 m/s^2, what is the percentage error in the value of g? 2. What precise meaning do you attach to the statement r = (24.0 ± 0.3) mm, where r is the radius of a tube? 3. How do you reduce the amount of error in your experiment? 4. Convert 1.75 liters to cubic centimeters. 5. List 3 different units that can be used to specify each of the following: length, mass, volume, and density.
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Transcript

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0:00 All right.
00:01 So let's say you measure your gravitational acceleration to be 8 .85 meters per second squared.
00:09 And the accepted value, we'll call like g0, is 9 .8 meters per second square.
00:15 So the percent error, which is delta g over g, is going to be the difference between these two.
00:23 So 9 .8 minus 8 .85 over 9 .8.
00:31 9 .8 minus 8 .85 divided by 9 .8.
00:35 This is, we'll write it as 9 .69%.
00:40 Question 2.
00:41 If you have the radius measured of an object and it comes out to be 24 plus or minus 0 .3 millimeters, that means that the sort of average value that you measured was 24 millimeters and that your uncertainty, we'll call this delta, so the amount that you could be off by in this measurement is 0 .3 millimeters...
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