Measurement-SigFig-Dimensional Analysis

Measurement-SigFig-Dimensional Analysis

by William Lovering

Multiple Choice

What SI unit is used to measure length?

• meter

• liter

• gram

• mole

Multiple Choice

Which of the following is the SI unit for temperature?

• degrees Fahrenheit

• degrees Celsius

• Kelvins

• Moles

Multiple Choice

What is the number 2 305 000 000 in scientific notation?

• $$2.3\times10^9$$  

• $$2.305\times10^{-9}$$  

• $$2.305\times10^9$$  

• $$230.5\times10^7$$  

Multiple Choice

Which of the following is a derived unit?

• Kilograms

• Liters

• Moles

• Kelvins

Multiple Choice

What is $$\left(3.25\ \times10^6\right)\left(1.7\ \times10^4\right)$$  

• $$5.525\times10^{10}$$  

• $$5.525\times10^{24}$$  

• $$5.525\times10^2$$  

• $$4.95\times10^{10}$$  

Multiple Choice

How many significant digits are in the number 200.10

• 2

• 4

• 5

• 1

Multiple Choice

How many siginificant digits are in the number 500

• 1

• 2

• 3

Multiple Choice

What answer has the correct sig fig

25.7 x 3200

• 82240

• 8224

• 82200

• 82000