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Measurement Significant Figures and Calculations HONORS

Last updated over 1 year ago

6 questions

Instructions

You may use your notes packets to help you. 
You may not talk to other students or seek help online.

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Question 1

1.

How many significant figures in the number
250

Question 2

2.

How many significant figures in 0.03064

Question 3

3.

How many significant figures in 15.0

Question 4

4.

Round 0.0459762 to 3 sig figs

0.0459

0.045

0.046

0.0460

Question 5

5.

Remember:
Accuracy measures how close results are to the true or known value.
Precision, on the other hand, measures how close results are to one another.

In your "1.2 Lab: Measurement in the Kitchen", your 4 trials of 1/4 cup flour resulted in 4 different mass measurements. This shows...

The balance is not accurate

The scooping method is not precise

Question 6

6.

Remember:
Accuracy measures how close results are to the true or known value.
Precision, on the other hand, measures how close results are to one another.

In your "1.2 Lab: Measurement in the Kitchen", your 1/4 cup flour mass average was higher than the 30g listed on the nutrition label. This shows...

Measuring by scoop volume (1/4 cup) is not accurate.

Measuring by scoop volume is not precise. 