Chem Unit 7

How many miles will a person run during a 10.0 kilometer race?

• 6.2 miles

• 6.21 miles

• 1.61 miles

• 1.6 miles

The moon is 250,000 miles from earth. How many feet is that?

• 47, 348 ft.

• 47 ft.

• 1.32 X 10⁹ ft.

• 1.3 X 10⁹ ft.

Tags

NGSS.MS-ESS1-3

What is the conversion for g-->mg?

• 1 g --> 1/1000 mg

• 1 g --> 100 mg

• 1000 g --> 1 mg

• 1 g --> 1000 mg

What is the conversion for m-->Hm

• 1 Hm --> 100 m

• 1 m --> 100 Hm

• 1 m --> 10 Hm

• 1000 m --> 1 Hm

What is the conversion for L --> dL

• 1 L --> 100 dL

• 1000 L --> 1 dL

• 1 L --> 10 dL

• 10 L --> 1 dL

How many centimeters are in an inch?

• 2.54 inches

• 2.54 cm

• 12 inches

• 10 cm

What is the first step when solving dimensional analysis problems?

• Write your plan

• Put your "known" over 1

• Identify your "known" and "unknown"

• Cross out units that are opposite each other

What is the second step when solving dimensional analysis problems?

• Write your plan

• Put your "known" over 1

• Identify your "known" and "unknown"

• Cross out units that are opposite each other

What is the third step when solving dimensional analysis problems?

• Write your plan

• Put your "known" over 1

• Identify your "known" and "unknown"

• Cross out units that are opposite each other

What does the prefix "Mega-" represent?

• 1,000,000

• 1/1,000,000

• 10,000,000

• 100,000