Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 36 · 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.🧪 In a fair test, how many things do you change at a time? (a) all of them (b) two (c) none (d) one
2. 2.True or false: to repeat each test is good testing. (a) False (b) True
3. 3.True or false: to repeat each test is poor testing. (a) True (b) False
4. 4.True or false: to test it only once is good testing. (a) True (b) False
5. 5.🔢 To build and test a straw bridge, which comes first: “choose and draw one” or “read the challenge rules”? (a) read the challenge rules (b) choose and draw one
6. 6.True or false: to hide a failed test is good testing. (a) False (b) True
7. 7.🔢 To build and test a straw bridge, which is the LAST step? (a) build it with straws (b) sketch three ideas (c) load it with coins (d) strengthen the weak part
8. 8.🧪 Three prototype bridges were tested with the same method. Design A held 130 g, design B held 180 g and design C held 230 g. Which design was the weakest? (a) design B (b) design C (c) design A
9. 9.🔍 Which is the odd one out? (a) hide a failed test (b) skip writing results (c) test it only once (d) record every result
10. 10.🧪 The first prototype held 140 g. After the team improved it, the new prototype held 190 g. How many more grams did it hold?
11. 11.🔢 To build and test a straw bridge, which comes first: “sketch three ideas” or “load it with coins”? (a) sketch three ideas (b) load it with coins
12. 12.True or false: to skip writing results is poor testing. (a) False (b) True
13. 13.🧪 Is it good or poor testing to repeat each test? (a) poor testing (b) good testing
14. 14.🧪 A paper bridge was tested three times. It held 170 g, 150 g and 190 g. What is the mean (average) load it held, in grams?
15. 15.🧪 What is a prototype? (a) a broken part (b) an early test model (c) a sales poster (d) the final product
16. 16.True or false: to change only one thing is poor testing. (a) True (b) False
17. 17.🧪 Three prototype bridges were tested with the same method. Design A held 250 g, design B held 350 g and design C held 300 g. Which design was the weakest? (a) design A (b) design C (c) design B
18. 18.🧪 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 B (b) design A (c) design C
19. 19.🧪 Three prototype bridges were tested with the same method. Design A held 390 g, design B held 340 g and design C held 290 g. Which design was the weakest? (a) design B (b) design A (c) design C
20. 20.🔍 Which is the odd one out? (a) change lots at once (b) use a new load each time (c) test it only once (d) change only one thing
21. 21.🔢 To build and test a straw bridge, which is the FIRST step? (a) build it with straws (b) read the challenge rules (c) load it with coins (d) sketch three ideas
22. 22.🧪 Is it good or poor testing to use the same load? (a) poor testing (b) good testing
23. 23.🔍 Which is the odd one out? (a) hide a failed test (b) test it only once (c) skip writing results (d) use the same load
24. 24.🧪 A paper bridge was tested three times. It held 380 g, 250 g and 330 g. What is the mean (average) load it held, in grams?
25. 25.🧪 Three prototype bridges were tested with the same method. Design A held 310 g, design B held 210 g and design C held 260 g. Which design was the weakest? (a) design B (b) design A (c) design C
26. 26.🔍 Which is the odd one out? (a) skip writing results (b) repeat each test (c) record every result (d) use the same load
27. 27.🔢 To build and test a straw bridge, what comes right after “build it with straws”? (a) sketch three ideas (b) read the challenge rules (c) load it with coins (d) choose and draw one
28. 28.🔍 Which is the odd one out? (a) repeat each test (b) test it only once (c) change only one thing (d) record every result
29. 29.🧪 Three prototype bridges were tested with the same method. Design A held 110 g, design B held 160 g and design C held 210 g. Which design was the strongest? (a) design B (b) design A (c) design C
30. 30.🧪 Is it good or poor testing to change lots at once? (a) good testing (b) poor testing
31. 31.🧪 The first prototype held 230 g. After the team improved it, the new prototype held 280 g. How many more grams did it hold?
32. 32.🧪 A paper bridge was tested three times. It held 430 g, 310 g and 280 g. What is the mean (average) load it held, in grams?
33. 33.True or false: to measure the same way is poor testing. (a) False (b) True
34. 34.🧪 A paper bridge was tested three times. It held 360 g, 290 g and 280 g. What is the mean (average) load it held, in grams?
35. 35.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “strengthen the weak part”? (a) read the challenge rules (b) strengthen the weak part
36. 36.🧪 Is it good or poor testing to use a new load each time? (a) poor testing (b) good testing
37. 37.🧪 The first prototype held 200 g. After the team improved it, the new prototype held 310 g. How many more grams did it hold?
38. 38.🧪 Three prototype bridges were tested with the same method. Design A held 260 g, design B held 310 g and design C held 210 g. Which design was the strongest? (a) design A (b) design B (c) design C
39. 39.True or false: to record every result is poor testing. (a) False (b) True
40. 40.🧪 Is it good or poor testing to record every result? (a) good testing (b) poor testing

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