The ant’s swimming
pool!
X
Y
The ant’s swimming pool!
Name_________ Period_
Make the following measurements and calculations. Make sure that you show all you work and
include units. Remember don’t read to the line, add an uncertain digit to tell how far between the
lines you are.
1. I have ruler number ______. It can measure to ____ significant figures.
2. Measure the swimming pool on sides x and y. As always, estimate between lines or add a
zero if your measurement is exactly on a line.
X=_____________________
Y=_____________________
3. Determine the area of the shape SHOW WORK AND UNITS!
This would use the (check one):
□ sig fig rules for X/
□ sig fig rules for +/ -
4. Determine the perimeter of A. SHOW WORK AND UNITS!
This would use the (check one):
□ sig fig rules for X/
□ sig fig rules for +/ -
CLASS DATA COPIED FROM THE BOARD:
Ruler
#
1
2
3
4
5
6
7
8
Length x
(Tj)
Length y
(Tj)
Area of
(Tj2)
How many
sig figs in
the Area?
Perimeter
(Tj)
How many
sig figs in
the
Perimeter?
5. What do you notice about the differences between groups 1-4?
6. What to you notice about the differences in groups 5-8?
7. Explain why using instruments with greater precise is important.
8. Explain how using a ruler with lower precise, but making calculations assuming
zeros can cause problems with build this box.
9. Groups 5-8 were not given numbers. What problems did not know the values of
each line have on the measurements?
10.
What problems did not knowing the unit cause?