Quiz#2: Scientific Notation

Write 0.000972 in scientific notation.

• 9.72 x 10^-4
• 9.72 x 10^-3
• 972 x 10^-4
• 9.72 x 10⁴

Write 0.037 in scientific notation.

• 3.7 x 10^-2
• 3.7 x 10²
• 37 x 10^-3
• 37 x 10³

Write 2.08 x 10²  in standard form.

• 208
• 0.0208
• 20,800
• 0.208

How would you write 50,000 in scientific notation?

• 50 x 10⁵
• 5 x 10⁴
• 5 x 10³
• .5 x 10³

Light travels at a rate of 186,000 miles per second.  Write this number in scientific notation.

• 1.86 x 10⁵
• 1.86 x 10⁴
• 18.6 x 10⁴
• 186 x 10³

The closest galaxy to our own is over 2,500,000 light years away.  Write this number is scientific notation.

• 2.5 x 10⁷
• .25 x 10⁷
• 25 x 10⁵
• 2.5 x 10⁶

Write this number in standard form:  7.7 x 10⁹

• 7,700,000,000
• 7,700,000
• 7,000,000.000
• 70,000,000,000

• None of the above

(5 x 10⁶)(5 x 10⁷)

• 2.5 x 10¹²
• 2.5 x 10¹⁴
• 25 x 10¹²
• 25 x 10¹³

2 x 10⁵
----------
8 x 10²

• 2.5 x 10⁴
• 2.5 x 10²
• 25 x 10³
• .25 x 10³