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QR Challenge: Electricity and electrostatics

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. Identify the mathematical equation you would use to solve this problem. The current in a circuit is 2A and the voltage is 12V what is the resistance? Find the QR code with the answer12
2. How do you prevent the risk of explosion when refuelling an airplane and explain how it works? Find the QR code with the answer17
3. Polythene rods become ___________ charged when charged by friction. Find the QR code with the answer21
4. Perspex rods become ___________ charged when charged by friction. Find the QR code with the answer16
5. Sub-atomic particle that carries a negative charge, in an atom. Find the QR code with the answer13
6. Like charges _______. Find the QR code with the answer20
7. What is an electric current? Find the QR code with the answer19
8. How is static electricity used to spray cars with paint? Find the QR code with the answer22
9. What is a coulomb? Find the QR code with the answer14
10. What mathematical equation links charge, current and time? Find the QR code with the answer15
11. What is induction in electrostatics?18
12. V=IROhms Law
13. electronnegativeparticle
14. A unit of chargeCoulomb
15. Q=Itequation for charge
16. Positivecharge+
17. Use a conductor to ground the aircraft, so that electrons can flow down the conductor to the earthplane
18. When a charged object is brought near to an uncharged object the electrons on the uncharged object move, so that a temporary charge separation occursinduction
19. Flow of electronscurrent
20. Attractopposite charges
21. NegativePolythene
22. Car door given negative charge, paint droplets given positive charge, opposites attract which deposits a thin layer of paint.paint spray
23. If you want to measure the current through a component what device should you use? Find the QR code with the answer33
24. If the current into a junction is 0.8A and one of the branches has a current of 0.2A what is the current in the other branch? Find the QR code with the answer36
25. What piece of equipment would you use to measure the voltage in a circuit? Find the QR code with the answer40
26. How do you connect a voltmeter into a circuit, relative to the component? Find the QR code with the answer35
27. What is the mathematical equation linking current, voltage, energy and time? Find the QR code with the answer41
28. How does the resistance of a thermistor change as you increase the temperature? Find the QR code with the answer38
29. How does the resistance of an LDR (Light Dependent Resistor change as you increase the temperature? Find the QR code with the answer42
30. Describe, in detail, how the resistance of a filament lamp changes with current and WHY. Find the QR code with the answer39
31. Describe, in detail, how the resistance of a fixed resistance changes with current and WHY. Find the QR code with the answer34
32. Define what voltage is, in terms of energy and charge. Find the QR code with the answer37
33. Ammetercurrent measure
34. Directly proportionalvariation of resistance
35. In parallelvoltmeter
36. 0.6A (the sum of the current in the two branches must equal 0.8A)junction
37. Joules per coulombvoltage
38. As temperature increases, the resistance decreasesthermistor
39. As current increases, this causes temp to increase. The increase in temp causes particles in structure to vibrate more, which knock into electrons as they move through, this increases the resistanceresistance
40. Voltmetercomponent
41. E=ItVenergy eqn
42. As the light intensity increases, the resistance decreasesLDR
43.
44.

 


Electricity and electrostatics: QR Challenge

https://www.classtools.net/QR/decode.php?text=Identify_the_mathematical_equation_you_would_use_to_solve_this_problem.__The_current_in_a_circuit_is_2A_and_the_voltage_is_12V_what_is_the_resistance?_Find_the_QR_code_with_the_answer

Question 1 (of 44)

 


Electricity and electrostatics: QR Challenge

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

Question 2 (of 44)

 


Electricity and electrostatics: QR Challenge

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

Question 3 (of 44)

 


Electricity and electrostatics: QR Challenge

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

Question 4 (of 44)

 


Electricity and electrostatics: QR Challenge

https://www.classtools.net/QR/decode.php?text=Sub-atomic_particle_that_carries_a_negative_charge,_in_an_atom.____Find_the_QR_code_with_the_answer

Question 5 (of 44)

 


Electricity and electrostatics: QR Challenge

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

Question 6 (of 44)

 


Electricity and electrostatics: QR Challenge

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

Question 7 (of 44)

 


Electricity and electrostatics: QR Challenge

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

Question 8 (of 44)

 


Electricity and electrostatics: QR Challenge

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

Question 9 (of 44)

 


Electricity and electrostatics: QR Challenge

https://www.classtools.net/QR/decode.php?text=What_mathematical_equation_links_charge,_current_and_time?____Find_the_QR_code_with_the_answer

Question 10 (of 44)

 


Electricity and electrostatics: QR Challenge

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

Question 11 (of 44)

 


Electricity and electrostatics: QR Challenge

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

Question 12 (of 44)

 


Electricity and electrostatics: QR Challenge

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

Question 13 (of 44)

 


Electricity and electrostatics: QR Challenge

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

Question 14 (of 44)

 


Electricity and electrostatics: QR Challenge

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

Question 15 (of 44)

 


Electricity and electrostatics: QR Challenge

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

Question 16 (of 44)

 


Electricity and electrostatics: QR Challenge

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

Question 17 (of 44)

 


Electricity and electrostatics: QR Challenge

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

Question 18 (of 44)

 


Electricity and electrostatics: QR Challenge

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

Question 19 (of 44)

 


Electricity and electrostatics: QR Challenge

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

Question 20 (of 44)

 


Electricity and electrostatics: QR Challenge

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

Question 21 (of 44)

 


Electricity and electrostatics: QR Challenge

https://www.classtools.net/QR/decode.php?text=Car_door_given_negative_charge,_paint_droplets_given_positive_charge,_opposites_attract_which_deposits_a_thin_layer_of_paint.

Question 22 (of 44)

 


Electricity and electrostatics: QR Challenge

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

Question 23 (of 44)

 


Electricity and electrostatics: QR Challenge

https://www.classtools.net/QR/decode.php?text=If_the_current_into_a_junction_is_0.8A_and_one_of_the_branches_has_a_current_of_0.2A_what_is_the_current_in_the_other_branch?__Find_the_QR_code_with_the_answer

Question 24 (of 44)

 


Electricity and electrostatics: QR Challenge

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

Question 25 (of 44)

 


Electricity and electrostatics: QR Challenge

https://www.classtools.net/QR/decode.php?text=How_do_you_connect_a_voltmeter_into_a_circuit,_relative_to_the_component?__Find_the_QR_code_with_the_answer

Question 26 (of 44)

 


Electricity and electrostatics: QR Challenge

https://www.classtools.net/QR/decode.php?text=What_is_the_mathematical_equation_linking_current,_voltage,_energy_and_time?__Find_the_QR_code_with_the_answer

Question 27 (of 44)

 


Electricity and electrostatics: QR Challenge

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

Question 28 (of 44)

 


Electricity and electrostatics: QR Challenge

https://www.classtools.net/QR/decode.php?text=How_does_the_resistance_of_an_LDR_(Light_Dependent_Resistor_change_as_you_increase_the_temperature?__Find_the_QR_code_with_the_answer

Question 29 (of 44)

 


Electricity and electrostatics: QR Challenge

https://www.classtools.net/QR/decode.php?text=Describe,_in_detail,_how_the_resistance_of_a_filament_lamp_changes_with_current_and_WHY.__Find_the_QR_code_with_the_answer

Question 30 (of 44)

 


Electricity and electrostatics: QR Challenge

https://www.classtools.net/QR/decode.php?text=Describe,_in_detail,_how_the_resistance_of_a_fixed_resistance_changes_with_current_and_WHY.__Find_the_QR_code_with_the_answer

Question 31 (of 44)

 


Electricity and electrostatics: QR Challenge

https://www.classtools.net/QR/decode.php?text=Define_what_voltage_is,_in_terms_of_energy_and_charge.__Find_the_QR_code_with_the_answer

Question 32 (of 44)

 


Electricity and electrostatics: QR Challenge

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

Question 33 (of 44)

 


Electricity and electrostatics: QR Challenge

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

Question 34 (of 44)

 


Electricity and electrostatics: QR Challenge

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

Question 35 (of 44)

 


Electricity and electrostatics: QR Challenge

https://www.classtools.net/QR/decode.php?text=0.6A_(the_sum_of_the_current_in_the_two_branches_must_equal_0.8A)

Question 36 (of 44)

 


Electricity and electrostatics: QR Challenge

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

Question 37 (of 44)

 


Electricity and electrostatics: QR Challenge

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

Question 38 (of 44)

 


Electricity and electrostatics: QR Challenge

https://www.classtools.net/QR/decode.php?text=As_current_increases,_this_causes_temp_to_increase.__The_increase_in_temp_causes_particles_in_structure_to_vibrate_more,_which_knock_into_electrons_as_they_move_through,_this_increases_the_resistance

Question 39 (of 44)

 


Electricity and electrostatics: QR Challenge

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

Question 40 (of 44)

 


Electricity and electrostatics: QR Challenge

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

Question 41 (of 44)

 


Electricity and electrostatics: QR Challenge

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

Question 42 (of 44)

 


Electricity and electrostatics: QR Challenge

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

Question 43 (of 44)

 


Electricity and electrostatics: QR Challenge

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

Question 44 (of 44)