Significant Figures and Scientific Notation Quiz

How many significant figures are in the measurement 0.004560?

• 3

• 4

• 5

• 6

The accepted value of a reaction time is 0.250s. A student measures 0.263s. What is the percent error?

• 5.2%

• 4.8%

• 0.048%

• 52%

Write 0.000072 in scientific notation.

• 7.2×10−4

• 7.2×10−5

• 7.2×10−6

• 7.2×10−7

Which of the following sets of measurements shows high precision but low accuracy?

• 3.1, 3.0, 2.9, 3.2 (true value: 3.0)

• 5.1, 5.0, 5.2, 5.1 (true value: 8.0)

• 7.5, 7.8, 8.2, 7.9 (true value: 7.9)

• 2.0, 4.0, 6.0, 8.0 (true value: 5.0)

Multiply: (3.25m)(4.0m).

• 13 m²

• 13.0 m²

• 13.00 m²

• 13.0

Which is larger?

• 4.5×10³

• 3.2×10⁴

• 7.1×10²

• 9.9×10¹

A measurement is reported as 1.230g. How many significant figures are there?

• 2

• 3

• 4

• 5

Add: 12.11g + 18.0g + 1.013g. Report with correct sig figs.

• 31.123 g

• 31.1 g

• 31.12 g

• 31 g

Convert 6.09×10² into standard notation.

• 0.0609

• 60.9

• 609

• 6090

A student measures a block to be 2.56 cm wide, but the actual width is 2.60 cm. What is the percent error?

• 0.04%

• 1.5%

• 4%

• 15%