1.2 Numbers & Measurement (Part 2)

Multiple Choice

If the exponent is a positive number the original number was...

• a really big number.

• a really small number.

Multiple Choice

Convert to scientific notation:

520,000,000

• 52 x 10⁷

• 5.2 x 10^-7

• 5.2 x 10⁸

• 0.52 x 10⁹

Multiple Choice

How would you write 0.0005 in scientific notation?

• 50 x 10^-5

• 5 x 10^-4

• 5 x 10³

• .5 x 10³

Multiple Choice

If the exponent is a negative number the original number was...

• a really large number.

• a really small number.

Fill in the Blank

Convert this number to standard notation:

7.1 x 10⁴

Fill in the Blank

Convert this number to standard notation:

1.4 x 10^-2

.

Multiple Choice

When converting between SI prefixes, what should you do if you are moving from smaller to larger units?

• move the decimal to the left

• move the decimal to the right

• do not move the decimal

• use dimensional analysis

Multiple Choice

When converting between SI prefixes, what should you do if you are moving from larger to smaller units?

• move the decimal to the left

• move the decimal to the right

• do not move the decimal

• use dimensional analysis

Multiple Choice

A beaker contains 0.42 L of water. The beaker's volume is _________ mL.

• 4.2

• 0.042

• 42

• 420

Multiple Choice

How many meters in 1.2 km?

• 1200

• .0012

• 12000

• .012

Multiple Choice

The string is 3.2 cm. How many meters long is it?

• .032

• 32

• 3200

• .0032

Multiple Choice

What is the symbol for the prefix kilo-?

• L

• m

• k

• kg

Multiple Choice

Which of the following is equivalent to 4.5 m?

• 450 km

• 450 cm

• 0.45 km

• 45 cm

Multiple Choice

Convert from meters to cm:  9 meters

• 900 cm

• 90 cm

• 0.9 cm

• 0.09 cm

Multiple Choice

Convert 17 m to cm:

• 0.17 cm

• 0.017 cm

• 1,700 cm

• 170 cm

Multiple Choice

Convert 300 meters to centimeters:

• 3000 cm

• 0.3 cm

• 30,000 cm

• 3 cn

Multiple Choice

240 cm = ___________ m

• 2400

• 24

• 2.4

• 0.24

Multiple Choice

15.6 L = ___________ mL

• 15,600

• 156,000

• 1,560,000

• 15,600,000

Multiple Choice

2804 mg = ___________ g

• 0.2804

• 2.804

• 28.04

• 280.4

Multiple Choice

490,000 g =____ kg

• 490

• 49

• 4,900

• 0.49

Fill in the Blank

How many significant figures (sig figs) are in the value 1204?

Fill in the Blank

How many sig figs are in the value 1.20*10^-3?

Fill in the Blank

How many sig figs are in the value 0.00200?

Fill in the Blank

Give the value of the following calculation to the proper number of sig figs. Don't forget to include units!

$$\frac{4.1\ m}{2.60\ s}$$  

.

/

Fill in the Blank

Do the following calculation, giving the final answer to the proper number of sig figs.

$$0.076\ -\ 0.0012$$  

.

Multiple Choice

Solve the expression $$3\ cm\ \cdot\ 4.0\ cm$$  . Give the answer to the proper number of sig figs.

• 12 cm²

• 10 cm²

• 12.0 cm²

• 10 cm