Physics Activity - Measurement
Another Simple Measurement - Version 2
Discussion:
In this activity, you will measure the length of an object
supplied by your teacher, then compare your results with the rest of
the class. Ok, no funny stuff this time - everybody's ruler will be
the same length - I promise!
Equipment:
an object to measure (supplied)
|
a four-sided meter stick (supplied)
|
Procedure:
- Write a brief description of this activity in your lab
notebook.
- When it is your turn, measure the length of the object using each of the four sides of the meter stick. Start with the side marked "<---- 1m ---->", then the red-and-white side, then the side marked in centimeters only, and lastly, the standard meter stick side. Use an appropriate
number of significant digits for each measurement. Record your measurements in a data table in your lab
book.
Results:
- Your teacher will tell you when and how to report your
measurement on the board.
- Record your classmates' measurements in your lab book.
- Calculate the mean (average) value for each of the four sets of measurements.
- Discuss the class' results with your classmates.
Conclusions:
In your lab notebook, record the results of this activity, as well
as any other results or conclusions reached by the class. Also, answer the
following questions:
- How did the markings on the meter stick affect the precision
of your results?
- How did the markings on the meter stick affect the accuracy
of your results?
- What do you think would be the best way to report the results of each set of measurements, and why?
1based on "Activity 4a: Length Measurement with the
Four-Sided Meter stick" in the Pasco Significant Figures Set
(ME-9849)
last update August 20, 2007 by JL Stanbrough