Physics Intro

Front

What are significant digits?

Back

Significant digits (or 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 digits are in the number 0.00076?

Back

2 significant digits.

Front

How do you convert a number to scientific notation?

Back

To convert a number to scientific notation, move the decimal point to create a new number between 1 and 10, then multiply by 10 raised to the power of the number of places the decimal was moved.

Front

How would you write 0.0005 in scientific notation?

Back

5 x 10^-4.

Front

What is standard notation?

Back

Standard notation is the way of writing numbers using digits, as opposed to scientific notation.

Front

Express 8.025 x 10^-8 in standard notation.

Back

.00000008025.

Front

What is scientific notation?

Back

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

Front

Express .000457 in scientific notation.

Back

4.57 x 10^-4.

Front

How do you convert scientific notation to standard form?

Back

To convert scientific notation to standard form, move the decimal point to the right or left according to the exponent of 10.

Front

Express 8.317 x 10^6 in standard form.

Back

8,317,000.