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QR Challenge: physics cluster c activity

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. Write law of electric field strength at point
2. What is the law of electric potential energy
3. What is the law of work done on charges?
4. In which direction does the negative charge move in the electric field?
5. In which direction does the positive charge move in the electric field?
6. The force acted on charge of 4 µC is 0.05N placed at a pair of parallel metal plates separated by 0.02m. What is the potential difference applied to plates?
7. Calculate the potential difference between two charged plates, if a potential energy of 12 e V required to move 2 electrons between them(e = 1.6×10-19 C , 1 e V = 1.60 × 10–19 J).
8. Two point charges having charge values of 2.0 µC and –3.0 µC, respectively, are separated by 2 cm.a- What is the value of the mutual force between them? b- If we doubled the distance between the two charge what is the force then?(k = 9 X 10 9 N.m /C
9. Give one similarity and one difference between the electric force and the gravitational force
10. Two point charges are 10.0 cm apart and have charges of 3.0 µC and –3.0 µC, respectively. What is the magnitude of the electric field at the midpoint between the two charges?
11. What is the unit of electric field strength in the SI system?
12. Two point charges, initially 4 cm apart, are moved to a distance of 20 cm part By what factor does the resulting electric force between them change?
13. Two equal charges are separated by 3.7 x 10 -10 m. The force between the charges has a magnitude of 2.5 x 10 -3 N. What is the magnitude of q on the charges? (k = 9 x 10 9 N•m /C )
14. A thundercloud has an electric charge of 43.2 C near the top of the cloud and 38.7 C near the bottom of the cloud. The magnitude of the electric force between these two charges is 3.95 x 10 6 N. What is the average separation between these charges? (k = 9 x 10 9 N•m /C )
15. voltmeter reads (500 v) across two charged, parallel plates that are (0.02m) apart. What is the electric field between them?
16. A charge of 0.4 µC placed in an electric field .If the force 3.0 10-6N on the charge .What is the magnitude of the electric field strength?
17. The force acted on charge of 16 µC is 0. 5 x 10-3 N placed at a pair of parallel metal plates separated by 20 cm . What is the potential difference applied to plates?
18. Two point charges having charge values of 0.02 C and – 0.04 C, respectively, are separated by 20 cm. What is the value of the mutual force between them?
19. Two point charges are 10.0 cm apart and have charges of 3 nC and – 3 nC, respectively. What is the magnitude of the electric field at the midpoint between the two charges?
20. Calculate the electric potential energy of a 3 µC charge moves between two plates, if the potential difference between them is 3V
21. What is the law of electric field between two plates?
22. What is coulomb’s law?
23. Write the law of electric potential at point?

 


physics cluster c activity: QR Challenge

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

Question 1 (of 23)

 


physics cluster c activity: QR Challenge

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

Question 2 (of 23)

 


physics cluster c activity: QR Challenge

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

Question 3 (of 23)

 


physics cluster c activity: QR Challenge

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

Question 4 (of 23)

 


physics cluster c activity: QR Challenge

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

Question 5 (of 23)

 


physics cluster c activity: QR Challenge

https://www.classtools.net/QR/decode.php?text=The_force_acted_on_charge_of_4_µC_is_0.05N_placed_at_a_pair_of_parallel_metal_plates_separated_by_0.02m._What_is_the_potential_difference_applied_to_plates?

Question 6 (of 23)

 


physics cluster c activity: QR Challenge

https://www.classtools.net/QR/decode.php?text=Calculate_the_potential_difference_between_two_charged_plates,_if_a_potential_energy_of_12_e_V_required_to_move_2_electrons_between_them(e_=_1.6×10-19_C__,_1_e_V_=_1.60_×_10–19_J).

Question 7 (of 23)

 


physics cluster c activity: QR Challenge

https://www.classtools.net/QR/decode.php?text=Two_point_charges_having_charge_values_of_2.0_µC_and_–3.0_µC,_respectively,_are_separated_by_2_cm.a-_What_is_the_value_of_the_mutual_force_between_them?_b-_If_we_doubled_the_distance_between_the_two_charge_what_is_the_force_then?(k__=_9_X_10_9___N.m_/C

Question 8 (of 23)

 


physics cluster c activity: QR Challenge

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

Question 9 (of 23)

 


physics cluster c activity: QR Challenge

https://www.classtools.net/QR/decode.php?text=Two_point_charges_are_10.0_cm_apart_and_have_charges_of_3.0_µC_and_–3.0_µC,_respectively._What_is_the_magnitude_of_the_electric_field_at_the_midpoint_between_the_two_charges?

Question 10 (of 23)

 


physics cluster c activity: QR Challenge

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

Question 11 (of 23)

 


physics cluster c activity: QR Challenge

https://www.classtools.net/QR/decode.php?text=Two_point_charges,_initially_4_cm_apart,_are_moved_to_a_distance_of_20_cm_part_By_what_factor_does_the_resulting_electric_force_between_them_change?

Question 12 (of 23)

 


physics cluster c activity: QR Challenge

https://www.classtools.net/QR/decode.php?text=Two_equal_charges_are_separated_by_3.7_x_10_-10__m._The_force_between_the_charges_has_a_magnitude_of_2.5_x_10_-3__N._What_is_the_magnitude_of_q_on_the_charges?_(k__=_9_x_10_9__N•m_/C__)

Question 13 (of 23)

 


physics cluster c activity: QR Challenge

https://www.classtools.net/QR/decode.php?text=A_thundercloud_has_an_electric_charge_of_43.2_C_near_the_top_of_the_cloud_and_38.7_C_near_the_bottom_of_the_cloud._The_magnitude_of_the_electric_force_between_these_two_charges_is_3.95_x_10_6__N._What_is_the_average_separation_between_these_charges?_(k__=_9_x_10_9__N•m_/C_)

Question 14 (of 23)

 


physics cluster c activity: QR Challenge

https://www.classtools.net/QR/decode.php?text=voltmeter_reads_(500_v)_across_two_charged,_parallel_plates_that_are_(0.02m)_apart._What_is_the_electric_field_between_them?

Question 15 (of 23)

 


physics cluster c activity: QR Challenge

https://www.classtools.net/QR/decode.php?text=A_charge_of_0.4_µC_placed_in_an_electric_field_.If_the_force_3.0_10-6N_on_the_charge_.What_is_the_magnitude_of_the_electric_field_strength?

Question 16 (of 23)

 


physics cluster c activity: QR Challenge

https://www.classtools.net/QR/decode.php?text=The_force_acted_on_charge_of_16_µC_is_0._5_x_10-3_N_placed_at_a_pair_of_parallel_metal_plates_separated_by__20_cm_._What_is_the_potential_difference_applied_to_plates?

Question 17 (of 23)

 


physics cluster c activity: QR Challenge

https://www.classtools.net/QR/decode.php?text=Two_point_charges_having_charge_values_of_0.02_C_and_–_0.04_C,_respectively,_are_separated_by_20_cm._What_is_the_value_of_the_mutual_force_between_them?

Question 18 (of 23)

 


physics cluster c activity: QR Challenge

https://www.classtools.net/QR/decode.php?text=Two_point_charges_are_10.0_cm_apart_and_have_charges_of_3_nC_and_–_3_nC,_respectively._What_is_the_magnitude_of_the_electric_field_at_the_midpoint_between_the_two_charges?

Question 19 (of 23)

 


physics cluster c activity: QR Challenge

https://www.classtools.net/QR/decode.php?text=Calculate_the_electric_potential_energy_of_a_3_µC_charge_moves_between_two_plates,_if_the_potential_difference_between_them_is_3V

Question 20 (of 23)

 


physics cluster c activity: QR Challenge

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

Question 21 (of 23)

 


physics cluster c activity: QR Challenge

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

Question 22 (of 23)

 


physics cluster c activity: QR Challenge

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

Question 23 (of 23)