QR Challenge: Force- Mechanical/Fluid

Created using the ClassTools QR Treasure Hunt Generator

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

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

3. Print out the QR codes.

4. Cut them out and place them around your class / school.

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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!

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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.

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Questions / Answers (teacher reference)

Question	Answer
1. what is mass	the amount of matter or stuff
2. what is weight	the force of gravity on an object
3. what is volume	the 3-dimensional space that a substance occupies
4. what is area	the size of a 2-dimensional surface
5. what is the formula for volume	length times width times height
6. what is the formula for area	length times width
7. Volume is ALWAYS____	cubed
8. Area is ALWAYS____	squared
9. what is force	the push or pull of an object
10. what is it called when two forces are equal	equilibrium
11. what is a scalar	having only magnitude, not direction
12. what is a vector	a quantity having direction and magnitude
13. what is a fluid	a substance that can flow easily and has no fixed shape
14. how do we move fluid	with pressure
15. what is buoyancy	the force exerted from fluids on solids
16. Buoyancy always pushes an object in which direction	Upwards
17. what does a hydrometer measure	the specific gravity of a liquid
18. what two types of hydrometers are there	light and heavy
19. which is bigger- a kilometer or a meter	a kilometer
20. How many meters are in a kilometer	1000
21. how many millimeters are in a meter	1,000
22. what are used in scales to weigh a person or produce	springs
23. force is measured in what English unit	pounds
24. force is measured in what metric unit	Newtons
25. pressure is measured in what English units	psi
26. what is the equation for density	mass divided by volume
27. If the density of an object is less than the density of water will the object float or sink	float
28. would a can of regular Coke sink or float in water	sink
29. would a can of Diet Coke sink or float in water	float
30. what is the density of water	1.0gm per cm cubed
31. what is the equation for pressure	force divided by area

 

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