Font size
Worksheetse-Activity: Significant Figures Practice I
Total questions: 12
Worksheet time: 8mins
Significant Figures refer to the number of important _____ digits from zero(0) to nine(9) in the coefficient of an expression that conveys an accurate measurement, length, volume or mass.
single
real
irrational
variable
When rounding a quantity with no visible decimal point, to a place value(ie. nearest whole number), in significant figures, replace the rounded digits with (a) .
To count the number of significant figures in a quantity, with no visible decimal point, start counting from the first digit _____.
on the right
on the left
in the middle
that varies depending on the number
All (a) digits are always significant figures.
Any zero(0) placed in between two(2) significant figures is considered a(n) _____.
significant figure
irrational number
mixed number
useless quantity
If zeros are placed both on the right side of a decimal point and left of a non-zero digit, they _____.
are considered sometimes in the value of the quantity
are significant figures
may not be considered in the value of the quantity
are not significant figures
Zeros placed on the right side of the last non-zero digit after the decimal point _____.
are significant figures
may sometimes be considered as significant figures
are not significant figures
The measurement 1000 mL has (a) significant figure(s).
Zeros that are placed on the right side of the last non-zero digit _____ when they come from a measurement.
are not significant figures
may sometimes be significant figures
are significant figures
How many significant figures are represented in the measurement
4000. torr? There are _____ significant figures in the measurement.
1
3
4
2
How many significant figures are represented in the quantity 9009.00?
There are _____ significant figures in the quantity.
2
4
5
6
Which of the following quantities below has five(5) significant figures?
1) 0.0005 cm 2) 0.00005 cm 3) 10,005 cm 4) 1,005,550 cm.
The answer is __) ; _____ cm
(a)
