Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 669 · 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.🔍 Which is the odd one out? (a) hide a failed test (b) test it only once (c) skip writing results (d) repeat each test
2. 2.🧪 Is it good or poor testing to test it only once? (a) poor testing (b) good testing
3. 3.🧪 A paper bridge was tested three times. It held 200 g, 130 g and 150 g. What is the mean (average) load it held, in grams?
4. 4.🧪 Is it good or poor testing to hide a failed test? (a) good testing (b) poor testing
5. 5.🔢 To build and test a straw bridge, which comes first: “load it with coins” or “sketch three ideas”? (a) sketch three ideas (b) load it with coins
6. 6.🧪 Is it good or poor testing to record every result? (a) poor testing (b) good testing
7. 7.🧪 A paper bridge was tested three times. It held 280 g, 210 g and 260 g. What is the mean (average) load it held, in grams?
8. 8.🧪 Why repeat a test three times? (a) the first is wrong (b) it looks busy (c) to get reliable results (d) to use more paper
9. 9.🧪 What is a prototype? (a) a broken part (b) a sales poster (c) the final product (d) an early test model
10. 10.🔍 Which is the odd one out? (a) measure the same way (b) test it only once (c) change only one thing (d) repeat each test
11. 11.🧪 Is it good or poor testing to change only one thing? (a) good testing (b) poor testing
12. 12.🧪 Why do engineers make prototypes? (a) to avoid testing (b) to test ideas cheaply (c) to decorate a room (d) to sell them at once
13. 13.🔍 Which is the odd one out? (a) repeat each test (b) use the same load (c) change only one thing (d) skip writing results
14. 14.🔍 Which is the odd one out? (a) change only one thing (b) repeat each test (c) use a new load each time (d) record every result
15. 15.🧪 Three prototype bridges were tested with the same method. Design A held 280 g, design B held 230 g and design C held 330 g. Which design was the weakest? (a) design C (b) design A (c) design B
16. 16.🧪 The first prototype held 110 g. After the team improved it, the new prototype held 210 g. How many more grams did it hold?
17. 17.🔢 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
18. 18.🧪 In a fair test, how many things do you change at a time? (a) all of them (b) one (c) two (d) none
19. 19.🧪 Three prototype bridges were tested with the same method. Design A held 400 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
20. 20.True or false: to use the same load is poor testing. (a) False (b) True
21. 21.🧪 A paper bridge was tested three times. It held 410 g, 280 g and 330 g. What is the mean (average) load it held, in grams?
22. 22.🧪 Three prototype bridges were tested with the same method. Design A held 300 g, design B held 350 g and design C held 400 g. Which design was the strongest? (a) design C (b) design B (c) design A
23. 23.🔍 Which is the odd one out? (a) repeat each test (b) change only one thing (c) guess, do not measure (d) measure the same way
24. 24.True or false: to record every result is poor testing. (a) False (b) True
25. 25.🧪 A paper bridge was tested three times. It held 360 g, 270 g and 270 g. What is the mean (average) load it held, in grams?
26. 26.🧪 A paper bridge was tested three times. It held 210 g, 160 g and 230 g. What is the mean (average) load it held, in grams?
27. 27.🧪 A paper bridge was tested three times. It held 270 g, 220 g and 200 g. What is the mean (average) load it held, in grams?
28. 28.True or false: to test it only once is poor testing. (a) True (b) False
29. 29.🧪 Is it good or poor testing to skip writing results? (a) good testing (b) poor testing
30. 30.🧪 Is it good or poor testing to repeat each test? (a) good testing (b) poor testing
31. 31.True or false: to measure the same way is good testing. (a) True (b) False
32. 32.True or false: to hide a failed test is good testing. (a) True (b) False
33. 33.🧪 The first prototype held 60 g. After the team improved it, the new prototype held 200 g. How many more grams did it hold?
34. 34.True or false: to repeat each test is poor testing. (a) True (b) False
35. 35.🧪 Three prototype bridges were tested with the same method. Design A held 220 g, design B held 170 g and design C held 120 g. Which design was the weakest? (a) design C (b) design A (c) design B
36. 36.🧪 The first prototype held 130 g. After the team improved it, the new prototype held 260 g. How many more grams did it hold?
37. 37.🔢 To build and test a straw bridge, which is the FIRST step? (a) strengthen the weak part (b) sketch three ideas (c) read the challenge rules (d) load it with coins
38. 38.🧪 Three prototype bridges were tested with the same method. Design A held 340 g, design B held 240 g and design C held 290 g. Which design was the weakest? (a) design B (b) design A (c) design C
39. 39.True or false: to use the same load is good testing. (a) False (b) True
40. 40.🧪 The first prototype held 190 g. After the team improved it, the new prototype held 200 g. How many more grams did it hold?

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