Dimensional Analysis Practice and Review Assignment

Front

What are significant figures?

Back

Significant figures are the digits in a number that contribute to its precision. This includes all non-zero digits, any zeros between significant digits, and trailing zeros in the decimal portion.

Front

How many significant figures are in the number 1000 mL?

Back

1 significant figure.

Front

Convert 3.97 x 10^-2 to standard form.

Back

0.0397

Front

How many minutes are in four hours?

Back

240 minutes.

Front

Convert 12,000,000 to scientific notation.

Back

1.2 x 10^7.

Front

How do you convert kilometers to centimeters?

Back

Multiply the number of kilometers by 100,000 (1 km = 100,000 cm).

Front

Convert 32.9 km to centimeters.

Back

3,290,000 cm.

Front

What is the formula for converting hours to minutes?

Back

Multiply the number of hours by 60.

Front

What is scientific notation?

Back

A way of expressing numbers that are too large or too small to be conveniently written in decimal form, using powers of ten.

Front

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

Back

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