Vasey - Chapter 1 Test Review

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. It is written as a product of a number (between 1 and 10) and a power of 10.

Front

Convert 21,500,000 to scientific notation.

Back

2.15 × 10^7

Front

Convert 0.0000067 to scientific notation.

Back

6.7 × 10^-6

Front

What is the general form of scientific notation?

Back

The general form is a × 10^n, where 1 ≤ a < 10 and n is an integer.

Front

How do you convert a large number to scientific notation?

Back

1. Move the decimal point to the left until you have a number between 1 and 10. 2. Count the number of places you moved the decimal point; this becomes the exponent of 10.

Front

How do you convert a small number to scientific notation?

Back

1. Move the decimal point to the right until you have a number between 1 and 10. 2. Count the number of places you moved the decimal point; this becomes a negative exponent of 10.

Front

What is the value of 10^0?

Back

1

Front

What does the exponent in scientific notation indicate?

Back

The exponent indicates how many places to move the decimal point. A positive exponent means to move to the right, while a negative exponent means to move to the left.

Front

Convert 0.00000045 to scientific notation.

Back

4.5 × 10^-7

Front

Convert 1500000000 to scientific notation.

Back

1.5 × 10^9