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QR Challenge: Electronics test

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) Which of these components gives out light: 555 Timer / Resistor / LEDLED
2. 2) What two main things do you notice about the LED?Flat side / Short leg
3. 3) What is this tool?Soldering Iron
4. 4) How can you tell if this tool is on?Wet the sponge and touch the tip on it
5. 5) What is this component?Battery Snap
6. 6) You can put a battery snap through a hole before you solder it. What is this hole called? A St___s or St___n hole. Why is the battery snap fed through this hole?
7. 7) What is the reason for using copper tape in your circuit?It conducts electricity
8. 8) What does the black wire symbolise?Negative
9. 9) What does the red wire mean?Positive
10. 10) What is this component called?Resistor
11. 11) What does this component do?Limits the flow of electricity
12. 12) Why does this component have coloured bands?To work out the strength of it
13. 13) The component with the arrow is polarised and the other isn't. What does this mean?It doesn't have a positive or negative
14. 14) What is this component called? P_sh to m__e s_i_ch
15. 15) How does the component for question number 14 work?when it's pressed the electricity flows through
16. 16) Can you explain why we solder components into a circuit?
17. 17) Your bedroom doorbell will have two outputs, can you choose them in this list: Battery / Transistor / LED / Battery Snap / Tilt Switch / Buzzer
18. 18) What does LED stand for? L___T E__TT_NG D__DE

 


Electronics test: QR Challenge

https://www.classtools.net/QR/decode.php?text=1)-Which-of-these-components-gives-out-light:---------555-Timer----/----Resistor-----/------LED

Question 1 (of 18)

 


Electronics test: QR Challenge

https://www.classtools.net/QR/decode.php?text=2)-What-two-main-things-do-you-notice-about-the-LED?

Question 2 (of 18)

 


Electronics test: QR Challenge

https://www.classtools.net/QR/decode.php?text=3)-What-is-this-tool?

Question 3 (of 18)

 


Electronics test: QR Challenge

https://www.classtools.net/QR/decode.php?text=4)-How-can-you-tell-if-this-tool-is-on?

Question 4 (of 18)

 


Electronics test: QR Challenge

https://www.classtools.net/QR/decode.php?text=5)-What-is-this-component?

Question 5 (of 18)

 


Electronics test: QR Challenge

https://www.classtools.net/QR/decode.php?text=6)-You-can-put-a-battery-snap-through-a-hole-before-you-solder-it.------What-is-this-hole-called?-A-St___s-or-St___n-hole.------------Why-is-the-battery-snap-fed-through-this-hole?

Question 6 (of 18)

 


Electronics test: QR Challenge

https://www.classtools.net/QR/decode.php?text=7)-What-is-the-reason-for-using-copper-tape-in-your-circuit?

Question 7 (of 18)

 


Electronics test: QR Challenge

https://www.classtools.net/QR/decode.php?text=8)-What-does-the-black-wire-symbolise?

Question 8 (of 18)

 


Electronics test: QR Challenge

https://www.classtools.net/QR/decode.php?text=9)-What-does-the-red-wire-mean?

Question 9 (of 18)

 


Electronics test: QR Challenge

https://www.classtools.net/QR/decode.php?text=10)-What-is-this-component-called?

Question 10 (of 18)

 


Electronics test: QR Challenge

https://www.classtools.net/QR/decode.php?text=11)-What-does-this-component-do?

Question 11 (of 18)

 


Electronics test: QR Challenge

https://www.classtools.net/QR/decode.php?text=12)-Why-does-this-component-have-coloured-bands?

Question 12 (of 18)

 


Electronics test: QR Challenge

https://www.classtools.net/QR/decode.php?text=13)-The-component-with-the-arrow-is-polarised-and-the-other-isn't.-What-does-this-mean?

Question 13 (of 18)

 


Electronics test: QR Challenge

https://www.classtools.net/QR/decode.php?text=14)-What-is-this-component-called?---------P_sh---to---m__e---s_i_ch

Question 14 (of 18)

 


Electronics test: QR Challenge

https://www.classtools.net/QR/decode.php?text=15)-How-does-the-component-for-question-number-14-work?

Question 15 (of 18)

 


Electronics test: QR Challenge

https://www.classtools.net/QR/decode.php?text=16)-Can-you-explain-why-we-solder-components-into-a-circuit?

Question 16 (of 18)

 


Electronics test: QR Challenge

https://www.classtools.net/QR/decode.php?text=17)-Your-bedroom-doorbell-will-have-two-outputs,-can-you-choose-them-in-this-list:---Battery--/-Transistor--/-LED--/-Battery-Snap--/-Tilt-Switch--/-Buzzer

Question 17 (of 18)

 


Electronics test: QR Challenge

https://www.classtools.net/QR/decode.php?text=18)-What-does-LED-stand-for?-----L___T---E__TT_NG---D__DE

Question 18 (of 18)