Unit 1 Study Guide

Does this image show results that are accurate and/or precise?

• Accurate, but not precise

• Precise, but not accurate

• Both precise and accurate

• Neither precise nor accurate

Multiply:
(9.4 x 10⁶)(3.2 x 10⁵)

• 30.08 x 10¹¹

• 3.8 x 10¹

• 3.008 x 10¹²

• 2.9375 x 10¹

A set of data are all close to each other, but they are not close to the actual value. This set of data can be described as...

• accurate

• precise

• both precise and accurate

Calculate 12.47 m ÷ 3.2 s and give your answer with the correct number of significant figures.

• 4 m/s

• 3.9 m/s

• 3.90 m/s

• 3.897 m/s

125,678,000: Change to scientific notation

• 1.25678 x 10¹²

• .125678 x 10^-9

• 12.5678 x 10⁸

• 1.25678 x 10⁸

Change from standard form to scientific notation: 12,000,000

• 12.0 x 10⁷

• 0.12 x 10⁷

• 1.2 x 10⁶

• 1.2 x 10⁷

Change from standard form to scientific notation: 0.004078

• 4.078 x 10^-3

• 4.078 x 10³

• 40.78 x 10^-4

• .4078 x 10^-2

A set of data are not close to each other, but the average of the data is very close to the actual value. This set of data can be described as...

• accurate

• precise

• both precise and accurate

If the exponent on your power of 10 is positive, is your number larger or smaller than 10?

• Larger

• Smaller

Change from standard form to scientific notation: 0.000398

• 39.8 x 10^-5

• 39.8 x 10^-5

• 3.98 x 10^-4

• 39.8 x 10^-6