Physical Science Math

Scientific Notation

100

8,900,000,000 in scientific notation

8.9 x 10⁹

200

670,000,000 in scientific notation

6.7 x 10⁸ 

300

0.0000034 in scientific notation

3.4 x 10^-6

400

4.77 x 10⁶ in standard form

4,770,000

500

 2.04 x 10^-6 in standard form

0.00000204

Unit conversions

100

Express 350 centimeters in meters

3.5 meters

200

Express 97.4 meters in centimeters

9,740 centimeters 

300

Express 5.3 kilometers in meters.

5,300 meters

400

Express 2 hours in seconds

7,200 seconds

500

Express 2.3 miles in meters when 1 mile is 1.61 kilometers.

3,703 meters

SI units

100

The SI unit for time

Seconds

200

SI unit for length

Meter

300

SI unit for mass

Kilogram

400

SI unit for temperature

Kelvin

500

SI unit for electric current 

Ampere

Sig Figs

100

Number of sig figs in 76.5

3

200

Number of sig figs in 8,900

2

300

Number of sig figs in 600.2

4

400

Number of sig figs in 0.0004

1

500

Number of sig figs in 20.000

5

Calculating Sig Figs

100

Find the sum and express using sig fig rounding rules: 

0.006 km + 0.059 km

0.065 km

200

Find the difference and round using sig fig rules: 

0.463 Mm - 0.09 Mm

0.37 Mm

300

Find the difference and round using sig fig rules:

0.0205 m - 0.009 m= 

0.012 m

400

Find the product and round using sig fig rules: 

9.8 m/s (3 kg) 

30N

500

Use the speed formula to calculate the speed and round using sig fig rules. 

Distance: 150 m  Time: 20.5 s

 s = d/t 

7.3 m/s