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QR Challenge: WAVES QR CHALLENGE

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. 1. Draw a picture of what constructive interference would look like.
2. 2. Draw a picture of what destructive interference would look like.
3. 3. In which direction does a transverse wave oscillate in comparison to the direction the wave travels?
4. 4. Are sound waves longitudingal(compressional) or transverse?
5. 5. A tuning fork starts to vibrate when a certain note is played on the piano. Is this an example of resonance or reflection?
6. 6. The speed of EM waves in a vacuum is always _________km/s.
7. 7. Which of the following sounds would have a shorter wavelength: a dog barking at 180HZ or a bell gonging a 90HZ ?
8. 8. Choose the true answer: in order for doppler effect to occur:A. the sound source must moving B.the listener must be moving C.both source and listener must be moving D.either source or listener must be moving
9.
10. 9. Electromagnetic wave that is visible to the human eye. ____
11. 10. Which wave has a longer wavelength radio waves or x-rays?
12. 11. Sunscreen blocks which type of wave? ________
13. 12. Your cell phone works using which type of EM wave? ______
14. 13. Which EM wave do you feel as heat? _____
15. 14. Which of the following has a shorter wavelength- Gamma Rays or Microwaves?
16. 15. The amplitude is heard as the __________ or _______ of a sound.
17. 16. The frequency is heard as the __________ of a sound.
18. 17. Sound travels fastest through ________ and slowest through _____
19. 18. Light speed will _____ when going from water to air.
20. 19. Light speed will _____ when going from a gas to a solid.
21. 20. When you look at a black shirt, which colors are you actually seeing?
22. 21. Which EM wave travels faster through a vacuum, UV or X-ray?
23. 21. What are the 7 EM waves in order?
24. 22. Sound does not travel through ______.
25. 23. An ocean wave has a frequency of 2 Hz and a speed of 20 m/sec. What is the wavelength of this wave? Remember Velocity =wavelength x frequency
26. 24. Loudness of sound is measured in what unit? _______
27. 25. What does supersonic mean? (think about the meaning of each word).

 


WAVES QR CHALLENGE: QR Challenge

https://www.classtools.net/QR/decode.php?text=1._Draw_a_picture_of_what_constructive_interference_would_look_like.

Question 1 (of 27)

 


WAVES QR CHALLENGE: QR Challenge

https://www.classtools.net/QR/decode.php?text=2._Draw_a_picture_of_what_destructive_interference_would_look_like.

Question 2 (of 27)

 


WAVES QR CHALLENGE: QR Challenge

https://www.classtools.net/QR/decode.php?text=3._In_which_direction_does_a_transverse_wave_oscillate_in_comparison_to_the_direction_the_wave_travels?

Question 3 (of 27)

 


WAVES QR CHALLENGE: QR Challenge

https://www.classtools.net/QR/decode.php?text=4._Are_sound_waves_longitudingal(compressional)_or_transverse?

Question 4 (of 27)

 


WAVES QR CHALLENGE: QR Challenge

https://www.classtools.net/QR/decode.php?text=5._A_tuning_fork_starts_to_vibrate_when_a_certain_note_is_played_on_the_piano._Is_this_an_example_of_resonance_or_reflection?

Question 5 (of 27)

 


WAVES QR CHALLENGE: QR Challenge

https://www.classtools.net/QR/decode.php?text=6._The_speed_of_EM_waves_in_a_vacuum_is_always__________km/s.

Question 6 (of 27)

 


WAVES QR CHALLENGE: QR Challenge

https://www.classtools.net/QR/decode.php?text=7.__Which_of_the_following_sounds_would_have_a_shorter_wavelength:_a_dog_barking_at_180HZ_or_a_bell_gonging_a_90HZ_?

Question 7 (of 27)

 


WAVES QR CHALLENGE: QR Challenge

https://www.classtools.net/QR/decode.php?text=8._Choose_the_true_answer:_in_order_for_doppler_effect_to_occur:A._the_sound_source_must_moving_B.the_listener_must_be_moving_C.both_source_and_listener_must_be_moving_D.either_source_or_listener_must_be_moving

Question 8 (of 27)

 


WAVES QR CHALLENGE: QR Challenge

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

Question 9 (of 27)

 


WAVES QR CHALLENGE: QR Challenge

https://www.classtools.net/QR/decode.php?text=9._Electromagnetic_wave_that_is_visible_to_the_human_eye._____

Question 10 (of 27)

 


WAVES QR CHALLENGE: QR Challenge

https://www.classtools.net/QR/decode.php?text=10._Which_wave_has_a_longer_wavelength_radio_waves_or_x-rays?

Question 11 (of 27)

 


WAVES QR CHALLENGE: QR Challenge

https://www.classtools.net/QR/decode.php?text=11._Sunscreen_blocks_which_type_of_wave?_________

Question 12 (of 27)

 


WAVES QR CHALLENGE: QR Challenge

https://www.classtools.net/QR/decode.php?text=12.__Your_cell_phone_works_using_which_type_of_EM_wave?________

Question 13 (of 27)

 


WAVES QR CHALLENGE: QR Challenge

https://www.classtools.net/QR/decode.php?text=13._Which_EM_wave_do_you_feel_as_heat?______

Question 14 (of 27)

 


WAVES QR CHALLENGE: QR Challenge

https://www.classtools.net/QR/decode.php?text=14._Which_of_the_following_has_a_shorter_wavelength-_Gamma_Rays_or_Microwaves?

Question 15 (of 27)

 


WAVES QR CHALLENGE: QR Challenge

https://www.classtools.net/QR/decode.php?text=15._The_amplitude_is_heard_as_the____________or_________of_a_sound.

Question 16 (of 27)

 


WAVES QR CHALLENGE: QR Challenge

https://www.classtools.net/QR/decode.php?text=16._The_frequency_is_heard_as_the____________of_a_sound.

Question 17 (of 27)

 


WAVES QR CHALLENGE: QR Challenge

https://www.classtools.net/QR/decode.php?text=17._Sound_travels_fastest_through___________and_slowest_through______

Question 18 (of 27)

 


WAVES QR CHALLENGE: QR Challenge

https://www.classtools.net/QR/decode.php?text=18._Light_speed_will_______when_going_from_water_to_air.

Question 19 (of 27)

 


WAVES QR CHALLENGE: QR Challenge

https://www.classtools.net/QR/decode.php?text=19._Light_speed_will_______when_going_from_a_gas_to_a_solid.

Question 20 (of 27)

 


WAVES QR CHALLENGE: QR Challenge

https://www.classtools.net/QR/decode.php?text=20._When_you_look_at_a_black_shirt,_which_colors_are_you_actually_seeing?

Question 21 (of 27)

 


WAVES QR CHALLENGE: QR Challenge

https://www.classtools.net/QR/decode.php?text=21._Which_EM_wave_travels_faster_through_a_vacuum,_UV_or_X-ray?

Question 22 (of 27)

 


WAVES QR CHALLENGE: QR Challenge

https://www.classtools.net/QR/decode.php?text=21._What_are_the_7_EM_waves_in_order?

Question 23 (of 27)

 


WAVES QR CHALLENGE: QR Challenge

https://www.classtools.net/QR/decode.php?text=22._Sound_does_not_travel_through_______.

Question 24 (of 27)

 


WAVES QR CHALLENGE: QR Challenge

https://www.classtools.net/QR/decode.php?text=23._An_ocean_wave_has_a_frequency_of_2_Hz_and_a_speed_of_20_m/sec._What_is_the_wavelength_of_this_wave?_Remember_Velocity_=wavelength_x_frequency

Question 25 (of 27)

 


WAVES QR CHALLENGE: QR Challenge

https://www.classtools.net/QR/decode.php?text=24._Loudness_of_sound_is_measured_in_what_unit?________

Question 26 (of 27)

 


WAVES QR CHALLENGE: QR Challenge

https://www.classtools.net/QR/decode.php?text=25._What_does_supersonic_mean?_(think_about_the_meaning_of_each_word).

Question 27 (of 27)