CH. 2.1-2.5 Measurements

2.2

100

What is the purpose of scientific notation?

To simplify writing very large or very small numbers

200

What is the scientific notation for the number 0.00034?

3.4 X 10^-4

300

What happens when the decimal point is moved to the left while converting to scientific notation?

The exponent becomes positive

400

How do you convert a number to scientific notation?

Move the decimal to get a number between 1 and 10, then multiply by 10ⁿ

500

In the number 1.2 x 10^-10, what does the 10^-10 represent?

The exponential part with a negative exponent

2.3

100

Number of significant figures 1.9740

5

200

Number of significant figures 15.0789

6

300

 Number of significant figures 3.980000

7

400

Number of significant figures 0.002332

4

500

Number of significant figures 5.00099

6

2.4

100

2.8723 x 1.6=?

4.6

200

10.567 – 9.11=?

1.46

300

(568.99 – 232.1) + 53 =?

64

400

23.56 + 12.1 =?

35.6

500

12.5 / 2.365=?

5.285

2.5

100

What are the 3 types of basic units?

English, metric, SI

200

What are the 3 types of derived units?

Area, volume, inches

300

The metric system is made up of what?

SI units

400

What phrase did we say we would use to remember the metric system?

The good man king henry died by drinking chocolate milk make nice people fart a lot

500

What are some SI units?

Length, mass, time