Sartor's Unit 1 Flashcard

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

Convert 0.00000000789 to scientific notation.

Back

7.89 x 10^-9

Front

Convert 205.2 to scientific notation.

Back

2.052 x 10^2

Front

What are significant figures?

Back

Digits in a number that contribute to its precision, including all non-zero digits, zeros between significant digits, and trailing zeros in the decimal part.

Front

Determine the number of significant figures in 0.07856.

Back

4

Front

Round 0.000479629 to 2 significant figures.

Back

0.00048

Front

Determine the number of significant figures in 45,213.00.

Back

7

Front

How do you identify significant figures in a number?

Back

1. Non-zero digits are always significant. 2. Any zeros between significant digits are significant. 3. Leading zeros are not significant. 4. Trailing zeros in a decimal number are significant.

Front

What is the significance of trailing zeros in whole numbers?

Back

Trailing zeros in whole numbers without a decimal point are not considered significant.

Front

Convert 0.00056 to scientific notation.

Back

5.6 x 10^-4