Dimensional Analysis

Which conversion fraction would be needed?

• 
• 

The Olympic record for the high jump is just over 2.6 yards. What is that distance in feet?  (3 ft=1 yd)

• 0.867 ft
• 7.8 ft
• 8.07 ft
• 8.27 ft

Which conversion factor would be needed?

• 
• 
• 
• 

What conversion factor would you use to solve this problem? (2.20 lbs = 1 kg)

• 2.20 lbs / 1 kg
• 1 kg / 2.20 lbs
• 0.002 lbs / 1 g
• 1 g / 0.002 lbs

All conversion factors are equal to _______.

• zero

• one

• ten

• original units

What would be the final units of this problem?

• feet/minute

• yards/minute

• yards/second

• seconds/feet

Tags

NGSS.MS-PS3-1

The moon is 250,000 miles from earth. How many feet is that? (5280 ft = 1 mile)

• 47, 348 ft.

• 47 ft.

• 1.32 X 10⁹ ft.

• 1.3 X 10⁹ ft.

Tags

NGSS.HS-ESS1-4

How many minutes are in a school year, 187 days?

• 269,280 min.

• 16, 200 min.

• 16, 156 min.

• 269,000 min.

You never learned dimensional analysis so you have been working at a fast food restaurant for 35.0000 years wrapping burgers. Each hour you wrap 184 burgers. You work 8 hours per day, 5 days a week. How many burgers have you wrapped? (1 yr = 52 wks)

• 13,395,200 burgers

• 18,753,300 burgers

• 40,185,600 burgers

• 56,259,800 burgers

A child weighs 40.0 lb and is to receive 0.10 mg of an antibiotic for each kg of body weight. How many milligrams of the antibiotic shall the child receive? (1 kg = 2.2 lbs)

• 18.2 mg

• 182 mg

• 0.182 mg

• 1.82 mg