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Scientific Notation and Significant Figures Video Quiz
This quiz is based on this video:
https://www.youtube.com/watch?v=IIQPHC5gZT8
Please watch the video first and then take the quiz. Be sure to complete the info at the bottom (last name, first name, period, and email) so I can give you a grade.
How many significant figures does 5.42 have?
3
none
Clear selection
How many significant figures in 7.100?
2 because zeros are never significant
4
Clear selection
(2:50) When rounding, how do you know how many significant figures you get?
video example: 2.0 and 8.330 How did he decide how many significant figures to round to?
the number with fewer significant figures determines the number of significant figures
the number with more significant figures determines the number of significant figures
Clear selection
When divide numbers, what do you do with the exponents?
add the exponents
subtract the exponents
Clear selection
Why isn't 0.24 x 10⁴ not the answer?
It is the right answer
In scientific notation, you need one number to the left of the decimal place
Clear selection
Remember, the rules for addition and subtraction with signifcant figures are somewhat different.
When adding, how do you determine how many significant figures to write?
the one with the most significant figures
the one with the most places after the decimal
the one with the fewest places after the decimal
Clear selection
Last Name
Your answer
First Name
Your answer
Period
Please select the period of chemistry that you are in.
Period 1
Period 2
Period 3
Clear selection
Your email
Be sure to type your email correctly so I can email you your grade on the quiz.
Your answer
Submit
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