Fermi Problems

Front

How many students can fit on a football field that is 360 feet long and 160 feet wide, given that a standing person occupies about 2.5 sq feet?

Back

23040

Front

A bag of rice weighs 4 pounds. One ounce of rice contains about 2000 grains of rice. About how many grains of rice are in the bag? (1 pound = 16 ounces)

Back

128000

Front

How much air does someone breathe in each day? It takes 5 breaths to breathe 1 liter of air. We breathe on average 10 times per minute.

Back

2880

Front

How much would it cost in gas money to drive across the US? The US is about 3000 miles across. Gas cost $2.00 per gallon. The car gets 25 miles per gallon.

Back

$240.00

Front

How much air does someone breathe in each day? It takes 5 breaths to breathe 1 liter of air. We breathe on average 10 times per minute.

Back

2880

Front

Estimate the size of a crowd at a parade that is 7 ft deep on both sides and 5280 ft long, using the 2.5 sq. ft per person rule.

Back

29568

Front

How many feet are in 1 mile?

Back

5280

Front

Which of the following facts is least important to answering the Fermi question "How many miles will I walk at Tri-Cities High this school year?"?
Options: Your walking speed, Average number of steps per day, Length of a step, Number of days in a school year

Back

Your walking speed

Front

Which of the following is the most reasonable answer to the Fermi problem "How many times will the average student use the bathroom at Tri-Cities High School this year?"

Back

50