Scientific Notation

The body of a 150 lb person contains 2.3 x 10^-4 lb of copper. How much copper is contained in the bodies of 1200 such people?

• 0.28

• 28

• 0.028

• 0.0028

A computer can perform 4.66 x 108 calculations per second. How many calculations can this computer perform in one minute?

• 2.796 X 10^10

• 3 X 10^10

• 3.796 X 10^10

• 2 X 10^10

The speed of light is approximately 3 x 10^8 m/s. How far does light travel in 6.0 x 10^1 seconds?

• 1.8 X 10^9

• 2 X 10^9

• 1.8 X 10^10

• 2 X 10^10

Lake Superior has roughly 25 times the volume of Lake Erie. If the volume of Lake Superior is approximately 1.22 x 10^4 km3 , what is the approximate volume of Lake Erie?

• 5 X 10^2

• 4.88 X 10^5

• 5 X 10^5

• 4.88 X 10^2

A liter is equal to 1 x 10^6 mm3 . There are roughly 5 x 10^6 red blood cells in 1 mm3 of human blood. How many red blood cells are there in a liter of human blood?

• 6 X 10^2

• 7 X 10^2

• 6 X 10^4

• 7 X 10^4

The size of the Indian Ocean is 2.7 x 107 square miles. The Arctic Ocean is 1/5 the size of the Indian Ocean. How big is the Arctic Ocean?

• 6.6 x 10^6

• 5.6 x 10^6

• 5.4 x 10^6

• 6.4 x 10^6