Significant Figures Quiz

How many significant figures are in the following measurement?

4.500 mg

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• 4

When using a graduated cylinder, what type of measurement can you make?

• Mass

• Volume

• Length

• None of these answer choices.

Which of the following is the most precise measurement?

• 23.400 mL

• 23 mL

• 23.0 mL

• 23.40 mL

When using a non-electronic instrument to make a measurement, how many digits are estimated?

• 0

• 1

• 2

• Never estimate a digit when reading an instrument.

How many significant figures are in the following measurement?

0.0060 L

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How many significant figures are in the following measurement?

5.00 X 10^-2 m

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You are given a ruler and a piece of copper wire.

What type of measurement will you make?

What must you determine about the ruler before determining the length of the wire?

• Mass, the smallest line/graduation on the ruler

• Volume, the largest line/graduation on the ruler

• Length, the smallest line/graduation on the ruler

• None of these options

You need to determine the VOLUME of an irregular-shaped object that is more dense than water.

What is the best method?

• Use a ruler; record as many sides as you can, then calculate.

• Use an electronic scale; record the mass.

• There is no way to determine the density of an irregular-shaped object that sinks in water.

• Use a graduated cylinder; add water to it, record the volume, add the object, record the second volume, then subtract the two volumes.

How many significant figures are in the following measurement?

6004 m

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When multiplying and dividing with measurements, how many significant figures should the answer have?

• The number on the calculator (never round).

• Look at the givens from the problem: use the most significant figures from the givens.

• Look at the givens from the problem: use the fewest significant figures from the givens.

• Always round your answer to 2 significant figures.