What is a key characteristic of a quantitative measurement?

Significant Digits and Scientific Notation

Interactive Video
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Chemistry
•
9th - 10th Grade
•
Hard

Patricia Brown
FREE Resource
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
It includes numerical data.
It cannot be measured.
It is always more accurate than qualitative measurements.
It involves subjective descriptions.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In scientific terms, what does accuracy refer to?
The number of significant digits in a measurement.
The closeness of a measurement to the true value.
The ability to measure without error.
The consistency of repeated measurements.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How is precision best described in scientific measurements?
The number of decimal places in a measurement.
The ability to measure without any error.
The closeness of repeated measurements to each other.
The exactness of a single measurement.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following numbers has three significant digits?
0.0045
0.045
4500
4.50
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the rule for placing the decimal point in scientific notation?
It should be placed after the first non-zero digit.
It should be placed randomly.
It should be placed before the first zero.
It should be placed at the end of the number.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When converting a number less than one to scientific notation, what is the sign of the exponent?
Positive
Negative
Zero
It depends on the number
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In addition and subtraction, how do you determine the number of decimal places in the result?
By the number with the most significant digits.
By the number with the most decimal places.
By the number with the fewest decimal places.
By the number with the fewest significant digits.
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