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QR Challenge: Pressure Conversions

Created using the ClassTools QR Treasure Hunt Generator

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Teacher Notes

A. Prior to the lesson:

1. Arrange students into groups. Each group needs at least ONE person who has a mobile device.

2. If their phone camera doesn't automatically detect and decode QR codes, ask students to

3. Print out the QR codes.

4. Cut them out and place them around your class / school.

B. The lesson:

1. Give each group a clipboard and a piece of paper so they can write down the decoded questions and their answers to them.

2. Explain to the students that the codes are hidden around the school. Each team will get ONE point for each question they correctly decode and copy down onto their sheet, and a further TWO points if they can then provide the correct answer and write this down underneath the question.

3. Away they go! The winner is the first team to return with the most correct answers in the time available. This could be within a lesson, or during a lunchbreak, or even over several days!

C. TIPS / OTHER IDEAS

4. A detailed case study in how to set up a successful QR Scavenger Hunt using this tool can be found here.

Questions / Answers (teacher reference)

Question

Answer

1. 0.971atmThe pressure is recorded as 738 mmHg. Convert this measurement to atmospheres (atm).
2. 50660 PaWhat is the pressure in pascals if the pressure is equal to 380.0 torr?
3. 187520 mmHgThe safety disk in a scuba tank will blow at a pressure of approximately 25000. kPa. Convert this pressure to mmHg.
4. 0.840 barA container of helium is connected to a manometer and the mercury level is 145 mm lower on the side open to the atmosphere. Atmospheric pressure is 775 mm Hg. Find the pressure of the helium in bar.
5. 1.09 atmA gas container is connected to a manometer. The mercury in the manometer is 7.2 cm lower on the side open to the gas. Atmospheric pressure is measured to be 755 mm Hg. What is the pressure of the gas in atmospheres?
6. 740 Torr (aka mmHg)A basketball is attached to a manometer and the mercury is 18 mm higher on the side connected to the atmosphere. The pressure of the atmosphere is 0.95 atm. Find the pressure in the basketball in Torr.

 


Pressure Conversions: QR Challenge

https://www.classtools.net/QR/decode.php?text=0.971atm

Question 1 (of 6)

 


Pressure Conversions: QR Challenge

https://www.classtools.net/QR/decode.php?text=50660-Pa

Question 2 (of 6)

 


Pressure Conversions: QR Challenge

https://www.classtools.net/QR/decode.php?text=187520-mmHg

Question 3 (of 6)

 


Pressure Conversions: QR Challenge

https://www.classtools.net/QR/decode.php?text=0.840-bar

Question 4 (of 6)

 


Pressure Conversions: QR Challenge

https://www.classtools.net/QR/decode.php?text=1.09-atm

Question 5 (of 6)

 


Pressure Conversions: QR Challenge

https://www.classtools.net/QR/decode.php?text=740-Torr-(aka-mmHg)

Question 6 (of 6)