Scientific Notation and Measurement

Express 23400 in proper scientific notation. 

• 2.34 x 10⁴
• 2.3 x 10³
• 2.30 x 10⁵
• 2.34 x 10³

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

The chief advantage of the metric system over other systems of measurement is that it ____.

• has more units
• is in multiples of 10
• is in French
• is derived from nature itself

What is the quantity 0.0075 meters expressed in centimeters?

• 0.075 cm
• 0.75 cm
• 7.5 cm
• 70.5 cm

Add (7.405 x 10⁴) + (5.15 x 10^-6) and express in standard form.

• 7405
• 74050.0000051
• 74050.51
• 74050.000000000051

How would you write -5.6 x 10^-3 in standard form?

• 0.0056
• -5,600
• 0.00056
• -0.0056

Which of the following is correct scientific notation?

• 20.35 x 10⁴
• .2035 x 10⁴
• 2035 ⁴
• 2.035 x10⁴

Convert 1.7 mm to Km

• 0.00000017 Km
• 0.0000017 Km
• 1700000 Km
• 17000000 Km

Convert 21.56 cm to m

• 215.6 m
• 21.56 m
• 2.156 m
• 0.2156 m

Convert 0.0056 Hg to g

• 0.056 g
• 0.56 g
• 5.6 g
• 56 g