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
4. Cut them out and place them around your class / school.
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!
4. A detailed case study in how to set up a successful QR Scavenger Hunt using this tool can be found here.
Question | Answer |
1. 1. What does the law of conservation of energy state? | energy can't be created or destroyed | 2. 2. You stretch a rubber band. Which result happens the farther you pull back? | more energy will be transformed into kinetic energy when you let go | 3. 3. You pull back the ball at the end of a Newton's cradle. Which energy transformation takes place when you let go? | potential to kinetic | 4. 4. What is the role of a battery in an electrical circuit? | source | 5. 5. What energy transformation takes place in a generator? | mechanical to electrical | 6. 6. Which energy transformation takes place in an electric motor? | electrical to mechanical | 7. 7. Through which method is heat transferred through direct contact? | conduction | 8. 8. Which type of heat transfer happens through space? | radiation | 9. 9. True or false: Heat transfers from warmer substances to cooler ones | True | 10. 10. What is one kind of evidence that work is done on an object? | the object moves | 11. 11.You lift a box onto a table. How can you increase the amount of gravitational potential energy the box gains? | lift it higher | 12. 12. True or False: A simple machine helps to reduce the amount of force and work that is done. | False | 13. 13. How can you reduce the effort force you need to exert on a lever to lift a load? | moving fulcrum closer to load or away from the effort force | 14. 14. How can you increase the efficiency of rusted door knob? | oil it | 15. 15. True or False: A single fixed pulley can only change the direction of the effort force. | True | 16. 16. A student lifts an object up 2 meters. The other student used a ramp. Who did more work? | they both did the same amount of work | 17. 17. True or False: You can increase the efficiency of an inclined plane by making it smoother. | True | 18. 18. A student tries to lift a load with a fixed pulley and noticed that the amount of force she used was the same without it. What can she do to reduce the force needed to lift the load? | use a movable pulley | 19. 19.A woman had a held a heavy brief case as she waited for a bus. She felt tired from holding the briefcase. Did the woman do work on the briefcase? | no because it didn't move a distance | 20. 20. A person places a ramp at the back of a truck. He pushes furniture up the ramp and into the truck. How does the ramp make his job easier to do? | it decreases the effort force | 21. 21. Electric motor or generator: Which device produces an electric current? | generator | 22. 22. Electric motor or generator: Which device involves rotating a magnet near a coil of wire or rotating a col of wire near a magnet? | generator | 23. 23. Electric motor or generator: Which device uses an electromagnet? | electric motor | 24. 24. Electric motor or generator: Which device uses electricity? | electric motor | 25. 25. Fixed or movable: Changes direction but not the size of the effort force | fixed | 26. 26. Fixed or movable: Pull down on the rope | fixed | 27. 27. Fixed or movable: Pull up on the rope | movable | 28. 28. Fixed or movable: Reduces the effort force needed to lift the load | movable | 29. 29. True or False: A simple machine reduces the amount of work that is done by decreasing the amount of effort force | False | 30. 30. How can you increase the strength of an electromagnet? | bigger nail, stronger battery, more coils of wire. |
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