Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 800 · 40 questions

Engineer's tip (Test fairly, record honestly): Prototype = an early model made to test an idea. Fair test: change one thing, keep the rest the same, measure and record every result. Mean of three tests = (first + second + third) ÷ 3.

1. 1.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “sketch three ideas”? (a) read the challenge rules (b) sketch three ideas
2. 2.True or false: to record every result is poor testing. (a) False (b) True
3. 3.🧪 A paper bridge was tested three times. It held 190 g, 50 g and 210 g. What is the mean (average) load it held, in grams?
4. 4.🔍 Which is the odd one out? (a) use the same load (b) change only one thing (c) use a new load each time (d) record every result
5. 5.True or false: to repeat each test is good testing. (a) True (b) False
6. 6.🧪 Why do engineers make prototypes? (a) to decorate a room (b) to sell them at once (c) to avoid testing (d) to test ideas cheaply
7. 7.True or false: to measure the same way is poor testing. (a) False (b) True
8. 8.🧪 The first prototype held 110 g. After the team improved it, the new prototype held 190 g. How many more grams did it hold?
9. 9.🧪 Is it good or poor testing to record every result? (a) good testing (b) poor testing
10. 10.🧪 The first prototype held 70 g. After the team improved it, the new prototype held 190 g. How many more grams did it hold?
11. 11.🧪 Three prototype bridges were tested with the same method. Design A held 310 g, design B held 360 g and design C held 260 g. Which design was the strongest? (a) design B (b) design A (c) design C
12. 12.True or false: to test it only once is good testing. (a) True (b) False
13. 13.🧪 Why repeat a test three times? (a) to use more paper (b) it looks busy (c) to get reliable results (d) the first is wrong
14. 14.True or false: to measure the same way is good testing. (a) False (b) True
15. 15.🧪 The first prototype held 120 g. After the team improved it, the new prototype held 320 g. How many more grams did it hold?
16. 16.🧪 Is it good or poor testing to skip writing results? (a) good testing (b) poor testing
17. 17.🧪 A paper bridge was tested three times. It held 290 g, 110 g and 170 g. What is the mean (average) load it held, in grams?
18. 18.🧪 A paper bridge was tested three times. It held 160 g, 80 g and 240 g. What is the mean (average) load it held, in grams?
19. 19.🔍 Which is the odd one out? (a) change only one thing (b) test it only once (c) change lots at once (d) use a new load each time
20. 20.🧪 The first prototype held 230 g. After the team improved it, the new prototype held 290 g. How many more grams did it hold?
21. 21.True or false: to change only one thing is good testing. (a) True (b) False
22. 22.🔢 To build and test a straw bridge, which comes first: “sketch three ideas” or “build it with straws”? (a) sketch three ideas (b) build it with straws
23. 23.🧪 A paper bridge was tested three times. It held 440 g, 350 g and 260 g. What is the mean (average) load it held, in grams?
24. 24.🧪 What is a prototype? (a) the final product (b) a broken part (c) an early test model (d) a sales poster
25. 25.🧪 A paper bridge was tested three times. It held 220 g, 160 g and 100 g. What is the mean (average) load it held, in grams?
26. 26.🔍 Which is the odd one out? (a) guess, do not measure (b) record every result (c) change lots at once (d) skip writing results
27. 27.🔢 To build and test a straw bridge, which comes first: “choose and draw one” or “strengthen the weak part”? (a) choose and draw one (b) strengthen the weak part
28. 28.🧪 Three prototype bridges were tested with the same method. Design A held 190 g, design B held 240 g and design C held 290 g. Which design was the weakest? (a) design A (b) design B (c) design C
29. 29.🧪 A paper bridge was tested three times. It held 210 g, 160 g and 200 g. What is the mean (average) load it held, in grams?
30. 30.🔍 Which is the odd one out? (a) change only one thing (b) measure the same way (c) change lots at once (d) repeat each test
31. 31.🧪 A paper bridge was tested three times. It held 300 g, 220 g and 260 g. What is the mean (average) load it held, in grams?
32. 32.🔢 To build and test a straw bridge, which is the LAST step? (a) sketch three ideas (b) strengthen the weak part (c) build it with straws (d) read the challenge rules
33. 33.True or false: to test it only once is poor testing. (a) False (b) True
34. 34.True or false: to use the same load is poor testing. (a) False (b) True
35. 35.🧪 Three prototype bridges were tested with the same method. Design A held 100 g, design B held 200 g and design C held 150 g. Which design was the weakest? (a) design A (b) design B (c) design C
36. 36.🔢 To build and test a straw bridge, which comes first: “load it with coins” or “build it with straws”? (a) build it with straws (b) load it with coins
37. 37.🔢 To build and test a straw bridge, which comes first: “sketch three ideas” or “strengthen the weak part”? (a) strengthen the weak part (b) sketch three ideas
38. 38.🔍 Which is the odd one out? (a) skip writing results (b) guess, do not measure (c) repeat each test (d) test it only once
39. 39.🧪 Is it good or poor testing to change only one thing? (a) poor testing (b) good testing
40. 40.🧪 Is it good or poor testing to use a new load each time? (a) good testing (b) poor testing

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