Assignment: Metric system

Want create site? With you can do it easy.

Assignment: Metric system

Assignment: Metric system


Struggling to find relevant content or pressed for time? – Don’t worry, we have a team of professionals to help you on
Assignment: Metric system
Get a 15% Discount on this Paper
Order Now

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




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.



Uncertainty in



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


Time 0 30 min 1 hour 2 hour
Did you find apk for android? You can find new and apps.

Calculate the price
Make an order in advance and get the best price
Pages (550 words)
*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.
How it works
Receive a 100% original paper that will pass Turnitin from a top essay writing service
step 1
Upload your 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.
Pro service tips
How to get the most out of your experience with MyCoursebay
One writer throughout the entire course
If you like the writer, you can hire them again. Just copy & paste their ID on the order form ("Preferred Writer's ID" field). This way, your vocabulary will be uniform, and the writer will be aware of your needs.
The same paper from different writers
You can order essay or any other work from two different writers to choose the best one or give another version to a friend. This can be done through the add-on "Same paper from another writer."
Copy of sources used by the writer
Our college essay writers work with ScienceDirect and other databases. They can send you articles or materials used in PDF or through screenshots. Just tick the "Copy of sources" field on the order form.
See why 20k+ students have chosen us as their sole writing assistance provider
Check out the latest reviews and opinions submitted by real customers worldwide and make an informed decision.
excellent job i will be coming back for any future papers if I have too.
Customer 452611, October 11th, 2021
Customer 452813, June 30th, 2022
Looks good. Thank you!!
Customer 452525, April 27th, 2022
Customer 452813, June 30th, 2022
Great job
Customer 452643, October 31st, 2021
The paper is great. Will definitely use again.
Customer 452773, May 24th, 2022
Paid for the paper to be completed 5 days prior than the day I received the paper.
Customer 452693, July 13th, 2022
IT, Web
Did an excellent job with the body of the paper and staying on the topic.
Customer 452885, October 27th, 2022
Web programming
thank you so much. This was very helpful and I was able to understand the assignment better after seeing it completed.
Customer 452715, September 22nd, 2022
Professions and Applied Sciences
Amazing work!
Customer 452707, May 29th, 2022
Human Resources Management (HRM)
Thanks for the paper. Hopefully this one will receive higher than a C and has followed all guidelines.
Customer 452701, November 16th, 2022
Thank you great job
Customer 452813, July 10th, 2022
Customer reviews in total
Current satisfaction rate
3 pages
Average paper length
Customers referred by a friend
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

Get your perfect essay with a 15% discount. Use DC15


Thank you for choosing MyCoursebay. Your presence is a motivation to us. All papers are written from scratch. Plagiarism is not tolerated. Order now for a 15% discount

Order Now