Physics Tools

Write 0.000456 in scientific notation.

How many significant figures are there in 0.002304?

• 4

• 3

• 5

• 6

The prefix "kilo-" means:

• 0.00000345

• 3,450

• 3,450,000

• 345,000

Which of the following numbers has 3 significant figures?

• 0.040

• 0.00450

• 4,500

• 45.000

• milli-

• centi-

• micro-

• nano-

Multiply (4.0 × 10^{4}) × (2.0 × 10^{3}) and express in scientific notation with the correct significant figures.

A measurement is 4.50 km. Express it in meters using metric prefixes.

• 0.00450 m

• 450 m

• 4,500 m

• 45,000 m

Write 7,890,000 in scientific notation with 3 significant figures.

• pico-

• micro-

• nano-

• milli-