Assignment: Metric system

Assignment: Metric system
Assignment: Metric system
Permalink:
Lab Answers (14p)
1. Using a metric ruler, determine the length of the items in Table 1.1 below:
In the final column, you are to estimate your measurement precision. To do this, measure each item a second or even third time. How close are the measurements? If there is a range of values for the length you measure, record the average difference between measurement values as your uncertainty. If your measured value for a given object appears the same after repeated measurements, this does not necessarily mean that your uncertainty is zero. Look closely at your ruler or measurement device and estimate the smallest unit of length that you would be able to discriminate with it. Every measurement device has limits. For instance, very few people use a ruler with a precision greater than 1/3 or 1/2 of a millimeter; in many cases, even this precision is difficult or impossible to obtain. Typically +/- 1 mm is standard for measuring flat objects with a ruler, but this uncertainty can be expected to go up when the object has significant curvature or its length is not quite so well defined.
To measure the circumference (length around) of your head or thigh, wrap a piece of string around it and mark where the string meets itself. Then lay the string out flat and measure the length with your ruler.
Table 1.1. Metric measurements and uncertainties.
meters cm mm inches
Uncertainty
?
Your favorite shoe .254 25.4 254 10 2.54
Your index finger 0.0762 7.62 76.2 3 7.62
A pencil 0.1524 15.24 152.4 6 1.524
Fingernail of your pinky 0.003175 0.3175 3.175 1/8 .3175
Width of a credit card
The circumference of
your thigh
The circumference of
your head
2. Measure and record volume in Table 1.2.
Estimate the rough volume of your head by using the circumference (denoted C) and multiplying out this formula (based on the volume of a sphere =4pr3/3 = C3/(6p2)):
Volume ? 1/59 × C × C × C = C3/59
Estimate the uncertainty in your head volume (?V, called “delta V”) calculation by using the uncertainty in your measurement of the circumference of your head (denoted ?C) and multiplying through the following formula:
?V ? 3/59 × C × C × ?C = 3/59 × C2 × ?C
Table 1.2. Head volume and uncertainty estimates.
Circumference
(C)
Uncertainty in
Circumference
(?C)
Head Volume
? 1/59 C3
Uncertainty in
Head Volume (?V)
? 3/59 × C2 × ?C
3. Complete the conversions in Table 1.3. The first row has been done.
Table 1.3. Length conversions.
Length km m miles feet
2.0 km 2.0 2,000 1.24 6,562
705 m 705
3.25 miles 3.25
300 ft 300
4. Complete the conversions in Table 1.4.
Table 1.4. Mass conversions.
Weight kg g pounds (lbs)
5.0 kg 5.0
400 g 400
50 pounds 50
5. Complete the conversions in Table 1.5.
Table 1.5. Volume conversions.
Volume liters ml gallons
6.0 liters (l) 6.0
600 ml 600
3 gallons 3
6. Complete the conversions in Table 1.6.
Table 1.6. Temperature conversions.
Temperature °C °F
100 °C 100
27 °C 27
-2 °C -2
27 °F 27
95 °F 95
-40 °F -40
7. Population biologists use the term “Doubling time” to refer to how long it takes a population to double in size. This concept is particularly useful when the average time for a given individual to reproduce is fairly constant in a species. Consider a bacterial population that can reproduce by dividing into two daughter cells (binary fission) from an original single individual cell. Assume a doubling time of ten minutes and fill out the following table. At time zero there is one bacterium, ten minutes later there are two bacteria, ten minutes after that there are 4 bacteria, etc. Fill in the blanks in Table 1.7.
Table 1.7. Population growth.
Number of Bacteria 1 8 First exceeds
10,000
Time 0 30 min 1 hour 2 hour

So much stress and so little time? Take care of yourself: let us help you with your task on
Assignment: Metric system
Get a 20% Discount on this Paper
Get Help Now
Calculate the price
Make an order in advance and get the best price
Pages (550 words)
$0.00
*Price with a welcome 15% discount applied.
Pro tip: If you want to save more money and pay the lowest price, you need to set a more extended deadline.
We know how difficult it is to be a student these days. That's why our prices are one of the most affordable on the market, and there are no hidden fees.

Instead, we offer bonuses, discounts, and free services to make your experience outstanding.
Sign up, place your order, and leave the rest to our professional paper writers in less than 2 minutes.
step 1
Upload assignment instructions
Fill out the order form and provide paper details. You can even attach screenshots or add additional instructions later. If something is not clear or missing, the writer will contact you for clarification.
s
Get personalized services with Do My Homeworkk
One writer for all your papers
You can select one writer for all your papers. This option enhances the consistency in the quality of your assignments. Select your preferred writer from the list of writers who have handledf your previous assignments
Same paper from different writers
Are you ordering the same assignment for a friend? You can get the same paper from different writers. The goal is to produce 100% unique and original papers
Copy of sources used
Our homework writers will provide you with copies of sources used on your request. Just add the option when plaing your order
What our partners say about us
Check out the latest reviews and opinions submitted by real customers worldwide and make an informed decision.
Leadership Studies
This is great! Thanks a bunch
Customer 452485, March 1st, 2022
Nursing
A well-researched paper. Delivered before the deadline as well. Extremely pleased !!
Customer 452445, August 20th, 2021
Business and administrative studies
Thank you so much for your help!!!!!
Customer 452519, November 9th, 2022
Management
Job done to satisfaction. Thank you!
Customer 452443, October 31st, 2021
Nursing
Good work, professional and beat the deadline. Thank you so very much
Customer 452445, August 24th, 2021
Chemical Engineering
Amazing. The writer delivered the draft earlier than expected, lol. I am pleased with the work; I hope my supervisor will like it too.
Customer 452443, September 1st, 2021
Other
Thank you!
Customer 452493, May 29th, 2022
Nursing
Great services.
Customer 452443, November 22nd, 2021
Economics
Thank you - much appreciated!
Customer 452493, April 2nd, 2022
Finance
Thank you
Customer 452445, September 8th, 2021
Nursing
Excellent! Followed directions and completed a great paper
Customer 452445, August 22nd, 2021
M5A1 Outline and Thesis
Paper was late
Customer 452457, November 15th, 2021
OUR GIFT TO YOU
15% OFF your first order
Use a coupon FIRST15 and enjoy expert help with any task at the most affordable price.
Claim my 15% OFF Order in Chat

Order your essay today and save 15% with the discount code ESSAYHELP