Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 429 · 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.🧪 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 strongest? (a) design B (b) design A (c) design C
2. 2.🧪 In a fair test, how many things do you change at a time? (a) two (b) all of them (c) one (d) none
3. 3.🧪 The first prototype held 290 g. After the team improved it, the new prototype held 420 g. How many more grams did it hold?
4. 4.True or false: to hide a failed test is good testing. (a) True (b) False
5. 5.🔍 Which is the odd one out? (a) use the same load (b) skip writing results (c) repeat each test (d) change only one thing
6. 6.🧪 Three prototype bridges were tested with the same method. Design A held 200 g, design B held 250 g and design C held 150 g. Which design was the weakest? (a) design A (b) design C (c) design B
7. 7.🧪 Is it good or poor testing to measure the same way? (a) good testing (b) poor testing
8. 8.🧪 Is it good or poor testing to hide a failed test? (a) good testing (b) poor testing
9. 9.True or false: to skip writing results is good testing. (a) True (b) False
10. 10.True or false: to test it only once is good testing. (a) False (b) True
11. 11.🧪 Why repeat a test three times? (a) the first is wrong (b) to get reliable results (c) to use more paper (d) it looks busy
12. 12.🧪 Is it good or poor testing to change lots at once? (a) poor testing (b) good testing
13. 13.🔍 Which is the odd one out? (a) change lots at once (b) repeat each test (c) use the same load (d) change only one thing
14. 14.🧪 Is it good or poor testing to record every result? (a) good testing (b) poor testing
15. 15.🔍 Which is the odd one out? (a) hide a failed test (b) change only one thing (c) record every result (d) use the same load
16. 16.🧪 Is it good or poor testing to use the same load? (a) good testing (b) poor testing
17. 17.True or false: to use a new load each time is good testing. (a) False (b) True
18. 18.🧪 The first prototype held 240 g. After the team improved it, the new prototype held 260 g. How many more grams did it hold?
19. 19.🧪 Is it good or poor testing to skip writing results? (a) good testing (b) poor testing
20. 20.🔢 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) choose and draw one
21. 21.🧪 Three prototype bridges were tested with the same method. Design A held 180 g, design B held 280 g and design C held 230 g. Which design was the strongest? (a) design A (b) design B (c) design C
22. 22.🧪 A paper bridge was tested three times. It held 260 g, 190 g and 120 g. What is the mean (average) load it held, in grams?
23. 23.True or false: to skip writing results is poor testing. (a) True (b) False
24. 24.🧪 Three prototype bridges were tested with the same method. Design A held 170 g, design B held 270 g and design C held 220 g. Which design was the strongest? (a) design C (b) design A (c) design B
25. 25.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “choose and draw one”? (a) read the challenge rules (b) choose and draw one
26. 26.🧪 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 A (b) design B (c) design C
27. 27.🧪 A paper bridge was tested three times. It held 300 g, 180 g and 300 g. What is the mean (average) load it held, in grams?
28. 28.🧪 What is a prototype? (a) the final product (b) a broken part (c) a sales poster (d) an early test model
29. 29.🧪 The first prototype held 270 g. After the team improved it, the new prototype held 390 g. How many more grams did it hold?
30. 30.🧪 Is it good or poor testing to use a new load each time? (a) poor testing (b) good testing
31. 31.🔢 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
32. 32.🔢 To build and test a straw bridge, what comes right after “sketch three ideas”? (a) strengthen the weak part (b) build it with straws (c) choose and draw one (d) load it with coins
33. 33.🧪 Is it good or poor testing to repeat each test? (a) poor testing (b) good testing
34. 34.🧪 The first prototype held 260 g. After the team improved it, the new prototype held 310 g. How many more grams did it hold?
35. 35.🧪 A paper bridge was tested three times. It held 360 g, 330 g and 360 g. What is the mean (average) load it held, in grams?
36. 36.True or false: to guess, do not measure is poor testing. (a) False (b) True
37. 37.🔢 To build and test a straw bridge, which comes first: “load it with coins” or “read the challenge rules”? (a) read the challenge rules (b) load it with coins
38. 38.🧪 Why do engineers make prototypes? (a) to avoid testing (b) to sell them at once (c) to test ideas cheaply (d) to decorate a room
39. 39.🧪 Three prototype bridges were tested with the same method. Design A held 210 g, design B held 260 g and design C held 310 g. Which design was the strongest? (a) design A (b) design C (c) design B
40. 40.🧪 The first prototype held 120 g. After the team improved it, the new prototype held 140 g. How many more grams did it hold?

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