Scientific Notation Concepts

The video tutorial explains how to convert numbers from standard form to scientific notation. It emphasizes the importance of moving the decimal point correctly and ensuring the format has one digit before the decimal. The tutorial also highlights common mistakes, such as incorrect placement of the decimal point and incorrect exponent values, and provides guidance on how to avoid them.

What is the scientific notation of the number 0.0045?

• 4.5 * 10^-3

• 45 * 10^-4

• 0.45 * 10^-2

• 4.5 * 10^3

How many decimal places do you move to convert 0.0045 to scientific notation?

• 1

• 2

• 3

• 4

What is the exponent when converting 0.0045 to scientific notation?

• 2

• -2

• -3

• 3

In scientific notation, how many digits should be before the decimal point?

• Three

• None

• Two

• One

Which of the following is an incorrect scientific notation?

• 45 * 10^-4

• 0.45 * 10^-2

• 4.5 * 10^-3

• 4.5 * 10^3

Why is 45 * 10^-4 not a correct scientific notation?

• It has no digits after the decimal point.

• The decimal point is missing.

• The exponent is incorrect.

• It has more than one digit before the decimal point.