Scientific Measurement

This refers to how close the measurement is to the true or accepted value

• estimate
• accuracy
• precision
• mean

This refers how close a group of measurements are to eachother

• estimate
• accuracy
• precision
• mean

What is the base unit for measuring volume?

• liters

• meters

• grams

• seconds

What is the formula for DENSITY?

• D=M*V
• D=M/V
• D=V*M
• D=V/M

What is the density of an object having a mass of 8.0 g and a volume of 25 cm³?

• 0.32 g/cm³
• 2.0 g/cm³
• 3.1 g/cm³
• 200 g/cm³

The diameter of a carbon atom is 0.000 000 000 154 m. What is this number expressed in scientific notation?

• 1.54 x 10¹² m
• 1.54 x 10^-12 m
• 1.54 x 10¹⁰ m
• 1.54 x 10^-10 m

Tags

CCSS.8.EE.A.3

The expression of 5008 km in scientific notation is ____.

• 5.008 x 10³ km
• 50.08 X 10^-4 km
• 5.008 x 10^-3 km
• 5.008 x 10⁴ km

Tags

CCSS.8.EE.A.3

Which of the following measurements is expressed to three significant figures?

• 0.007 m
• 7077 mg
• 7.30 x 10^-7 km
• 0.070 mm

Tags

CCSS.8.EE.A.4

How many significant figures are in the measurement 40,500 mg?

• two
• three
• four
• five

Tags

CCSS.8.EE.A.4

What is the measurement 111.009 mm rounded off to four significant digits?

• 111 mm
• 111.0 mm
• 111.01 mm
• 110 mm