Density & Percent Error

Front

What is density?

Back

Density is the mass of an object divided by its volume, typically expressed in grams per cubic centimeter (g/cm³) or kilograms per cubic meter (kg/m³).

Front

How do you calculate density?

Back

Density = Mass / Volume.

Front

What is percent error?

Back

Percent error is a measure of how inaccurate a measurement is, expressed as a percentage of the accepted value.

Front

How do you calculate percent error?

Back

Percent Error = |(Estimated Value - Actual Value)| / Actual Value × 100%.

Front

If the estimated attendance at a game was 15,000 and the actual was 12,500, what is the percent error?

Back

20%.

Front

If Jessie estimated her cat's weight at 8 pounds and the actual weight is 10 pounds, what is the percent error?

Back

20%.

Front

What is the order of liquids from most dense to least dense if given densities of 4, 3, 2, 1?

Back

4, 3, 2, 1.

Front

How do you round 0.1234 to two significant figures?

Back

0.12.

Front

What variable is needed to calculate density if mass is known?

Back

Volume.

Front

What is the significance of significant figures in measurements?

Back

Significant figures indicate the precision of a measurement and help convey the uncertainty in the data.