Significant Figures
Authored by Desiderio Villalobos
Science
8th Grade
Used 6+ times
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30 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is an exact number?
A number that is uncertain
A number that is measured
A number that is certain
A number that changes frequently
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is an example of an exact number?
The length of a piece of string
The weight of a bag of apples
12 eggs in one dozen
The temperature of a room
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is an inexact number?
A number that is always whole
A number that is certain
A number that is measured
A number that is infinite
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why are numbers obtained from measurement never exact?
Because the measuring tool is always precise
Because there is no need for exact numbers in science
Because there is always a degree of "uncertainty" due to the measuring tool and the individual doing the measuring
Because measurements are always estimated
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many significant figures are there in the number 4.09?
2
3
4
5
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many significant figures does the number 61.02 contain?
2
3
4
5
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If a number ends with zeros that are after the decimal point, such as 0.500, how many significant figures does it have?
2
3
4
5
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