Be Precise (Density, Sig Figs, % Error)

Front

What two types of measurements make up DENSITY?

Back

Mass and Volume

Front

Round 1289 to three significant figures.

Back

1.29x10^3

Front

Solve and give your answer with the correct number of significant figures: 24.28 + 12.5

Back

36.8

Front

What is the percent error if the measured weight of a table is 20 Kg and the actual weight is 23 Kg?

Back

13%

Front

What units can be used to express density?

Back

g/mL

Front

Define Density.

Back

Density is the mass of an object divided by its volume.

Front

What is the formula for calculating percent error?

Back

Percent Error = |(Measured Value - Actual Value) / Actual Value| x 100%

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 significance of significant figures in measurements?

Back

Significant figures indicate the precision of a measurement.

Front

Convert 0.00456 to scientific notation.

Back

4.56 x 10^-3