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QR Challenge: Work/Direction Problems

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. A kid kicks a kickball with a force of 5 N over a distance of 0.2 m. Is the work POSITIVE, NEGATIVE, or ZERO?positive
2. A car comes to a stop over 10 m as Superman pushes on its front hood. Is the work POSITIVE, NEGATIVE, or ZERO?negative
3. You continue moving forwards 15 m while your little brothers/sisters/cousins attach themselves to your leg to drag you backwards. Is the work POSITIVE, NEGATIVE, or ZERO?neg
4. You push on a cow and it doesn't move. Is the work POSITIVE, NEGATIVE, or ZERO? zero
5. You get dragged along the full-of-friction floor. Is the work POSITIVE, NEGATIVE, or ZERO from friction?neg
6. A ball falls downwards. Is the work POSITIVE, NEGATIVE, or ZERO from gravity?positive
7. A ball is tossed upwards. Is the work POSITIVE, NEGATIVE, or ZERO from gravity?negative

 


Work/Direction Problems: QR Challenge

https://www.classtools.net/QR/decode.php?text=A_kid_kicks_a_kickball_with_a_force_of_5_N_over_a_distance_of_0.2_m.__Is_the_work_POSITIVE,_NEGATIVE,_or_ZERO?

Question 1 (of 7)

 


Work/Direction Problems: QR Challenge

https://www.classtools.net/QR/decode.php?text=A_car_comes_to_a_stop_over_10_m_as_Superman_pushes_on_its_front_hood.___Is_the_work_POSITIVE,_NEGATIVE,_or_ZERO?

Question 2 (of 7)

 


Work/Direction Problems: QR Challenge

https://www.classtools.net/QR/decode.php?text=You_continue_moving_forwards_15_m_while_your_little_brothers/sisters/cousins_attach_themselves_to_your_leg_to_drag_you_backwards.____Is_the_work_POSITIVE,_NEGATIVE,_or_ZERO?

Question 3 (of 7)

 


Work/Direction Problems: QR Challenge

https://www.classtools.net/QR/decode.php?text=You_push_on_a_cow_and_it_doesn't_move.____Is_the_work_POSITIVE,_NEGATIVE,_or_ZERO?

Question 4 (of 7)

 


Work/Direction Problems: QR Challenge

https://www.classtools.net/QR/decode.php?text=You_get_dragged_along_the_full-of-friction_floor.____Is_the_work_POSITIVE,_NEGATIVE,_or_ZERO_from_friction?

Question 5 (of 7)

 


Work/Direction Problems: QR Challenge

https://www.classtools.net/QR/decode.php?text=A_ball_falls_downwards.____Is_the_work_POSITIVE,_NEGATIVE,_or_ZERO_from_gravity?

Question 6 (of 7)

 


Work/Direction Problems: QR Challenge

https://www.classtools.net/QR/decode.php?text=A_ball_is_tossed_upwards.____Is_the_work_POSITIVE,_NEGATIVE,_or_ZERO_from_gravity?

Question 7 (of 7)