Dimensional Analysis, Scientific Notation, and Percent Error

How many kilograms of calcium are there in 173 pounds of calcium?

(1 pound = 454 grams; 1 kg = 1000 g)

• 1.10 kg

• 78.5 kg

• 110 kg

• 78500 kg

How many inches are in 1 mile? (5280ft = 1mi; 12in = 1ft)

• 66330in

• 63360in

• 63660in

• 63066in

How many minutes are in a school year, 187 days?

• 269,280 min.

• 16, 200 min.

• 16, 156 min.

• 269,000 min.

How would you write 0.0005 in scientific notation?

• 50 x 10^-5

• 5 x 10^-4

• 5 x 10³

• .5 x 10³

Scientific Notation is made up of two number parts. The first part should be a number between 1 and 100.

• True
• False

Convert to scientific notation:

520,000,000

• 52 x 10⁷

• 5.2 x 10^-7

• 5.2 x 10⁸

• 0.52 x 10⁹

If the exponent is a positive number the original number was...

• a really big number.

• a really small number.

Convert this number into scientific notation:

0.068

• 6.9 x 10⁶

• 6.8 x 10^-9

• 6.8 x 10^-2

• None of the above

Which value is the greatest?

• 5.0 x 10^-9

• 5.0 x 10^-4

• 5.0 x 10⁶

• 5.0 x 10⁸

Convert 62 miles/hour to feet/second

• 5,456 feet/second

• 0.003 feet/second

• 90.9 feet/second

• 909 feet/second