QR Challenge: Light and Sound Vocabulary

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. Do not require a medium to travel through	electromagnetic wave
2. The transfer of energy as electromagnetic waves	radiation
3. The transfer of energy carried by light waves to particles of matter	absorption
4. The interaction of light with matter that causes light to change direction	scattering
5. The passing of light or other form of energy through matter	transmission
6. Describes matter that allows light to pass through with little interference	transparent
7. Describes matter that transmits light but does not transmit an image	translucent
8. Matter that does not transmit any light	opaque
9. Material that gives a substance its color by absorbing some colors of light and reflecting others	pigment
10. A person can see close-up objects clearly; faraway objects look blurry	nearsightedness
11. A person can see faraway objects clearly; close objects look blurry	farsightedness
12. A longitudinal wave that is caused by vibrations and that travels through a material medium	sound wave
13. A substance through which a wave can travel by vibrating particles in the material	medium
14. A measure of how high or low a sound is perceived to be, depending on the frequency of the wave	pitch
15. An observed change in the frequency of a wave when the source or observes is moving	Doppler Effect
16. The most common unit used to measure loudness	decibel
17. The extent to which a sound can be heard	loudness
18. A reflected sound wave	echo
19. The process of using reflected sound waves to find objects; used by animals such as bats	echolocation
20. The explosive sound heard when a shock wave from an object traveling faster than the speed of sound reaches a person’s ear	sonic boom
21. The result of several pitches mixing together through interference	sound quality
22. A sound that consist of a random mix of frequencies	noise

 

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