Tools of Physics

How many sig. fig. are in the number below:
350.540

• 4
• 5
• 6
• 7

How many sig. fig. are in the number below:
0.0005

• 1
• 2
• 3
• 4

How many sig figs are there?
0.00400

• 1
• 3
• 5
• 6

Which measurement contains 3 sig figs?

• 200 mL
• 20.0 mL
• 0.02 mL
• 0.020mL

What is the correct number of sig figs in 10500

• 3
• 2
• 4
• 5

Which value has only 4 significant digits? 

• 6.930
• 0.450
• 8450
• 0.392

Convert the following to scientific notation.

0.000480

• 4.8 x 10^-4

• 4.80 x 10^-4

• 48 x 10^-5

• 4.80 x 10⁴

Round 1047.78 to three sig figs

• 104
• 105
• 1050
• 1050.00

Round 1009 to three sig figs

• 100
• 101
• 1010
• 1000

Round 720.36 to two sig figs

• 72
• 73
• 720
• 720.00