Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 574 · 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.🧪 Is it good or poor testing to change lots at once? (a) poor testing (b) good testing
2. 2.🔍 Which is the odd one out? (a) test it only once (b) change only one thing (c) use the same load (d) measure the same way
3. 3.🧪 The first prototype held 60 g. After the team improved it, the new prototype held 120 g. How many more grams did it hold?
4. 4.True or false: to hide a failed test is poor testing. (a) False (b) True
5. 5.True or false: to skip writing results is good testing. (a) False (b) True
6. 6.🧪 A paper bridge was tested three times. It held 320 g, 200 g and 140 g. What is the mean (average) load it held, in grams?
7. 7.True or false: to repeat each test is poor testing. (a) False (b) True
8. 8.🔢 To build and test a straw bridge, which is the LAST step? (a) strengthen the weak part (b) sketch three ideas (c) build it with straws (d) load it with coins
9. 9.🧪 What is a prototype? (a) the final product (b) a sales poster (c) a broken part (d) an early test model
10. 10.🔢 To build and test a straw bridge, which is the FIRST step? (a) load it with coins (b) strengthen the weak part (c) read the challenge rules (d) build it with straws
11. 11.🔢 To build and test a straw bridge, which comes first: “sketch three ideas” or “build it with straws”? (a) build it with straws (b) sketch three ideas
12. 12.🔍 Which is the odd one out? (a) change only one thing (b) skip writing results (c) measure the same way (d) repeat each test
13. 13.True or false: to test it only once is good testing. (a) False (b) True
14. 14.🧪 Three prototype bridges were tested with the same method. Design A held 260 g, design B held 160 g and design C held 210 g. Which design was the weakest? (a) design C (b) design A (c) design B
15. 15.🧪 Three prototype bridges were tested with the same method. Design A held 180 g, design B held 130 g and design C held 230 g. Which design was the strongest? (a) design B (b) design A (c) design C
16. 16.🧪 A paper bridge was tested three times. It held 310 g, 300 g and 320 g. What is the mean (average) load it held, in grams?
17. 17.🧪 Is it good or poor testing to use a new load each time? (a) poor testing (b) good testing
18. 18.🧪 Three prototype bridges were tested with the same method. Design A held 230 g, design B held 280 g and design C held 180 g. Which design was the weakest? (a) design B (b) design C (c) design A
19. 19.🧪 The first prototype held 140 g. After the team improved it, the new prototype held 240 g. How many more grams did it hold?
20. 20.True or false: to measure the same way is poor testing. (a) True (b) False
21. 21.🧪 In a fair test, how many things do you change at a time? (a) one (b) two (c) none (d) all of them
22. 22.🧪 Is it good or poor testing to change only one thing? (a) poor testing (b) good testing
23. 23.🧪 Is it good or poor testing to use the same load? (a) good testing (b) poor testing
24. 24.🧪 Three prototype bridges were tested with the same method. Design A held 260 g, design B held 310 g and design C held 360 g. Which design was the strongest? (a) design A (b) design B (c) design C
25. 25.True or false: to record every result is poor testing. (a) True (b) False
26. 26.True or false: to measure the same way is good testing. (a) True (b) False
27. 27.True or false: to record every result is good testing. (a) False (b) True
28. 28.🔢 To build and test a straw bridge, which comes first: “build it with straws” or “read the challenge rules”? (a) build it with straws (b) read the challenge rules
29. 29.True or false: to use a new load each time is good testing. (a) False (b) True
30. 30.🔢 To build and test a straw bridge, which comes first: “sketch three ideas” or “choose and draw one”? (a) choose and draw one (b) sketch three ideas
31. 31.🧪 A paper bridge was tested three times. It held 370 g, 270 g and 230 g. What is the mean (average) load it held, in grams?
32. 32.🧪 Three prototype bridges were tested with the same method. Design A held 100 g, design B held 150 g and design C held 200 g. Which design was the strongest? (a) design A (b) design B (c) design C
33. 33.🧪 Three prototype bridges were tested with the same method. Design A held 350 g, design B held 250 g and design C held 300 g. Which design was the weakest? (a) design C (b) design B (c) design A
34. 34.🧪 A paper bridge was tested three times. It held 260 g, 170 g and 80 g. What is the mean (average) load it held, in grams?
35. 35.🧪 A paper bridge was tested three times. It held 230 g, 150 g and 220 g. What is the mean (average) load it held, in grams?
36. 36.🔍 Which is the odd one out? (a) use a new load each time (b) use the same load (c) change only one thing (d) repeat each test
37. 37.🧪 Three prototype bridges were tested with the same method. Design A held 290 g, design B held 340 g and design C held 390 g. Which design was the weakest? (a) design A (b) design B (c) design C
38. 38.🔢 To build and test a straw bridge, what comes right after “sketch three ideas”? (a) strengthen the weak part (b) choose and draw one (c) read the challenge rules (d) build it with straws
39. 39.True or false: to change only one thing is good testing. (a) False (b) True
40. 40.True or false: to use the same load is good testing. (a) False (b) True

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