QR Challenge: Sound Group 1 C3

Created using the ClassTools QR Treasure Hunt Generator

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

• Download a QR reader (e.g. I-Nigma | NeoReader | Kaywa) onto their mobile devices
• Bring these devices into the lesson.

3. Print out the QR codes.

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

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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!

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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.

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Questions / Answers (teacher reference)

Question	Answer
1. How do sound waves travel?	longitudinal wave
2. What are the components of a sound wave?	compressions and rarefactions
3. In what units is loudness measured?	decibels
4. Sound waves above the normal human range of hearing are called?	ultrasound
5. How is sound frequency measured?	hertz
6. The change of sound waves in the Doppler effect is heard as a change in?	pitch
7. Sound waves with frequencies below the normal human range of hearing are called?	infrasound
8. True or false, a sonic boom is due to a shock wave that is produced when the sound barrier is broken?	true
9. True or false, the larger the amplitude of a sound wave, the older the sound?
10. The amount of energy a sound wave carries per second through a unit area is called the wave's?	intensity

 

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