CCU1LL Calculating and Rounding with Sig Figs

LLU1 Calculating and Rounding with Sig Figs

​Agenda:

Sig Fig Video 1

• The Why

• Short-cut to counting sig figs​

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Sig Fig Video 2​

• Calculating with Sig Figs​

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Multiple Choice

What are significant figures?

• They are the reliably known digits that a measurement contains.

• They are diagrams representing significant atoms and molecules.

• They are measurements which are important to everyday life.

• They are units of measurement in the International System of Units.

Multiple Choice

How many significant figures does 10,080 sec have?

• 3
• 4
• 5
• 6

Multiple Choice

How many significant figures does 10.1 cm have?

• 1
• 2
• 3
• 4

Multiple Choice

Determine the number of sig figs in the following measurement: 
0.00300

• 3
• 6
• 1
• 5

Multiple Choice

Determine the number of sig figs in the following measurement: 
72,100 g

• 5

• 3

• 6

• 4

Multiple Choice

Select the measurement with the correct number of significant figures.

• 8.250

• 8.25

• 8.2

• 8

Multiple Choice

Select the measurement with the correct number of significant figures.

• 6 cm

• 6.770 cm

• 6.77 cm

• 6.775 cm

Multiple Choice

What is the following measurement rounded to 3 significant figures?

6.589 cm

• 6.59 cm

• 6.58 cm

• 6.589 cm

• 6.60 cm

• 6.5 cm

Multiple Choice

How many significant figures are in the following measurement?

2.51 m

• 1 significant figure

• 2 significant figures

• 3 significant figures

• 4 significant figures

• 5 significant figures

Multiple Choice

Which of the following is the answer for the problem with the correct number of significant digits?
23.91 x 12.861 = 307.50651

• 308

• 307.51

• 307.5

• 307

Multiple Choice

What is the result for the following calculation? Ensure that the correct number of significant figures are included in the calculated result.

$$25.085\ m\ +\ 16.2\ m$$  

• 41.3 m

• 41.2085 m

• 41.285 m

• 41.2 m

Multiple Choice

Calculate
5.50 cm + 5.50 cm

• 11 cm

• 11.0 cm

• 11.00 cm

• 11.000 cm

Multiple Choice

How many significant figures are in the result for the following calculation?

$$6.08\ kg\times5.0\ \frac{m}{s}$$  

• 3 significant figures

• 1 significant figure

• 2 significant figures

• 4 significant figures

• 5 significant figures

Multiple Choice

How many significant figures are in the result for the following calculation?

$$\frac{65.3\ J}{50.085\ s}$$  

• 5 significant figures

• 2 significant figures

• 1 significant figure

• 3 significant figures

Multiple Choice

What is the result for the following calculation? Ensure that the correct number of significant figures are included in the calculated result.

$$25.085\ m\ +\ 16.2\ m$$  

• 41.3 m

• 41.2085 m

• 41.285 m

• 41.2 m

Multiple Choice

What is the result of the following calculation? Ensure that the correct number of significant figures are included in the calculated result.

$$12.582\ s\ -\ 5.23\ s$$  

• 7.360 s

• 7.36 s

• 7.35 s

• 7.352 s

• 7.350 s

Multiple Choice

For significant figures, which term is the limiting term in the following calculation?

$$17.2\ g\ +\ 9\ g\ +\ 36.333\ g\ +\ 0.58\ g$$  

• 17.2 g

• 9 g

• 36.33 g

• 0.58 g