Scientific Measurements

Front

What is the SI base unit of length?

Back

Meter

Front

Calculate 78.467 / 3 and round to the correct significant figures.

Back

30

Front

Round 12,678.56 to one significant figure.

Back

10,000

Front

What is density?

Back

Density is the mass of a substance divided by its volume.

Front

Calculate the density of a substance with a volume of 5.0 mL and a mass of 45.3 g.

Back

9.06 g/mL

Front

How many significant figures are in the number 0.0045?

Back

2

Front

What are significant figures?

Back

Significant figures are the digits in a number that contribute to its precision.

Front

How do you determine the number of significant figures in a measurement?

Back

Count all non-zero digits, any zeros between them, and trailing zeros in the decimal part.

Front

What is the formula for calculating density?

Back

Density = Mass / Volume

Front

If a measurement is 0.00340, how many significant figures does it have?

Back

3