Measurement/SigFig Check In

How would you report a measurement of 100 m in mm?

Use standard number form (i.e. 100 mm)

How would you report a measurement of 100 cm³ in m³?

Write it as a standard form decimal in the form: 0.01 m^3

How would you report a measurement of 0.56 cm in nm?

You may use either standard decimal form, or, scientific notation: write as 4.5 x 10^4

Convert 25 °C into Kelvin.

Remember that by definition T_K = T_°C + 273

Remember your units!!!

How would you convert 1 m³ into mL?

Report in standard form.

Remember 1 mL = 1 cm³

Convert 1 year into seconds. Write out the long form dimensional analysis.

365 days = 1 year

24 hrs = 1 day

60 min = 1 hr

60 s = 1 min

Report the number in standard form

A bag weighs 50 lbs, what is the mass in centigrams?

1 kg = 2.2 lbs

Report in standard form, round to the ones place.

Gold has a density of 19.3 g/cm^3. Convert this into units of kg/m^3.

Report in standard form.

45 km/s is what speed in miles per hour (mph)?

Report in standard form rounded to the ones place.

1 mile = 1600 m

1 hour = 60 min

1 min = 60 s

Light travels at a rate of 186,000 miles per second.  Write this number in scientific notation.

• 1.86 x 10⁵

• 1.86 x 10⁴

• 18.6 x 10⁴

• 186 x 10³