Detailed Case Study Search the Archive Feedback

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

- Download a QR reader (e.g. I-Nigma | NeoReader | Kaywa) onto their mobile devices
- Bring these devices into the lesson.

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. According to Newton's Third Law, action and reaction are? | Equal and in opposite directions |

2. | |

3. You are pushing a wheel barrow and suddenly a load of dirt is dumped into it so that the wheel barrow's mass doubles, what happens to the wheel barrow's acceleration? | It halves |

4. | |

5. Which law states the need to wear seat belts? The blood in your head rushes to your feet when riding on an elevator that is descending and abruptly stops. | Newton's 1st Law |

6. | |

7. What is the mass of an object if the force pushing it is 50N and the acceleration is 5m/s? | 10kg |

8. | |

9. Which law states the relationship between an objects mass (m), its acceleration (a), and the force (f) is F=ma. | Newton's 2nd Law |

10. | |

11. What does Inertia measure? | Mass |

12. | |

13. Two students are moving a heavy box of books down a hallway. Leroy exerts a force of 30 Newtons on the box left. Chuck exerts a force of 50 Newtons in the same direction. What is the force on the box and the direction of motion? | 80N left |

14. | |

15. Which law does this demonstrate? A big rock moves slower when it is shot from a slingshot, than a pebble shout out of it. | Newton's 2nd Law |

16. | |

17. A force that 1 surface exerts on another when the two rub against each other is called? | Friction |

18. | |

19. When two equal forces act on the same object in opposite directions, the net force is? | Zero |

20. | |

21. Two students play tug of war. Jack pulls East with a force of 82 Newtons while Tony pulls west with a force of 96 Newtons. Which of the following best describe the NET FORCE on the flag and DIRECTION at the center of the rope? | 178N West |

22. | |

23. Considering Newton's 1st Law, what force is responsible for a golf ball's trajectory? | Gravity |

24. | |

25. In the diagrams below, two forces are exerted on an object. The forces are represented by arrows. The length of the arrow indicates the magnitude of the force. In which of the diagrams will the motion of the object remain unchanged? | Diagram A |

26. | |

27. The force needed to accelerate a football to a given velocity is greater than that of a ping-pong ball to the same velocity. | Newtons 2nd Law |

28. | |

29. What happens to an object if the forces acting upon it are unbalanced? | moving |

30. | |

31. What happens to an object if the forces acting upon it are balanced? | Not moving or constant velocity |

32. | |

33. If a car races around a track where will the car experience acceleration? EXPLAIN | On the curve because changing direction is acceleration |

34. | |

35. The tendency of an object to remain at rest or in constant motion unless acted on by an outside, unbalanced force is called? | Inertia |

36. | |

37. A hot wheel car with a mass of 5kg was pushed with a force of 10 N. What is the hot wheelâ€™s acceleration? | 2m/s |

38. | |

39. Draw the FORCE and SPEED triangle | must be correct |

40. | |

41. What three things can you find on the Periodic Table Formula chart? | varies |

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