Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 900 · 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.🧪 Why do engineers make prototypes? (a) to decorate a room (b) to test ideas cheaply (c) to sell them at once (d) to avoid testing
2. 2.🧪 A paper bridge was tested three times. It held 420 g, 320 g and 220 g. What is the mean (average) load it held, in grams?
3. 3.🧪 What is a prototype? (a) a sales poster (b) an early test model (c) the final product (d) a broken part
4. 4.🧪 Is it good or poor testing to hide a failed test? (a) poor testing (b) good testing
5. 5.🧪 A paper bridge was tested three times. It held 190 g, 80 g and 180 g. What is the mean (average) load it held, in grams?
6. 6.🧪 The first prototype held 290 g. After the team improved it, the new prototype held 320 g. How many more grams did it hold?
7. 7.True or false: to use the same load is good testing. (a) False (b) True
8. 8.🧪 In a fair test, how many things do you change at a time? (a) all of them (b) one (c) two (d) none
9. 9.🔢 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
10. 10.🧪 A paper bridge was tested three times. It held 210 g, 130 g and 290 g. What is the mean (average) load it held, in grams?
11. 11.🧪 A paper bridge was tested three times. It held 260 g, 200 g and 170 g. What is the mean (average) load it held, in grams?
12. 12.🧪 Is it good or poor testing to repeat each test? (a) poor testing (b) good testing
13. 13.🧪 Three prototype bridges were tested with the same method. Design A held 220 g, design B held 320 g and design C held 270 g. Which design was the weakest? (a) design A (b) design B (c) design C
14. 14.True or false: to hide a failed test is poor testing. (a) False (b) True
15. 15.True or false: to test it only once is good testing. (a) False (b) True
16. 16.🔍 Which is the odd one out? (a) measure the same way (b) record every result (c) guess, do not measure (d) use the same load
17. 17.🧪 Is it good or poor testing to skip writing results? (a) good testing (b) poor testing
18. 18.🔢 To build and test a straw bridge, which comes first: “build it with straws” or “read the challenge rules”? (a) read the challenge rules (b) build it with straws
19. 19.True or false: to record every result is poor testing. (a) False (b) True
20. 20.🧪 Why repeat a test three times? (a) to use more paper (b) it looks busy (c) the first is wrong (d) to get reliable results
21. 21.🔍 Which is the odd one out? (a) change lots at once (b) repeat each test (c) record every result (d) change only one thing
22. 22.🧪 A paper bridge was tested three times. It held 300 g, 210 g and 240 g. What is the mean (average) load it held, in grams?
23. 23.🧪 Three prototype bridges were tested with the same method. Design A held 200 g, design B held 300 g and design C held 250 g. Which design was the strongest? (a) design C (b) design A (c) design B
24. 24.🧪 Is it good or poor testing to measure the same way? (a) poor testing (b) good testing
25. 25.🧪 The first prototype held 170 g. After the team improved it, the new prototype held 210 g. How many more grams did it hold?
26. 26.🧪 The first prototype held 80 g. After the team improved it, the new prototype held 110 g. How many more grams did it hold?
27. 27.🧪 Is it good or poor testing to guess, do not measure? (a) good testing (b) poor testing
28. 28.🧪 Three prototype bridges were tested with the same method. Design A held 200 g, design B held 300 g and design C held 250 g. Which design was the weakest? (a) design B (b) design A (c) design C
29. 29.🧪 The first prototype held 260 g. After the team improved it, the new prototype held 310 g. How many more grams did it hold?
30. 30.🧪 The first prototype held 200 g. After the team improved it, the new prototype held 340 g. How many more grams did it hold?
31. 31.🔍 Which is the odd one out? (a) hide a failed test (b) use a new load each time (c) skip writing results (d) use the same load
32. 32.🧪 Is it good or poor testing to use a new load each time? (a) good testing (b) poor testing
33. 33.True or false: to guess, do not measure is good testing. (a) False (b) True
34. 34.🧪 A paper bridge was tested three times. It held 220 g, 60 g and 170 g. What is the mean (average) load it held, in grams?
35. 35.🧪 Is it good or poor testing to use the same load? (a) good testing (b) poor testing
36. 36.🧪 A paper bridge was tested three times. It held 360 g, 180 g and 240 g. What is the mean (average) load it held, in grams?
37. 37.🧪 The first prototype held 210 g. After the team improved it, the new prototype held 340 g. How many more grams did it hold?
38. 38.🔍 Which is the odd one out? (a) test it only once (b) measure the same way (c) skip writing results (d) guess, do not measure
39. 39.True or false: to guess, do not measure is poor testing. (a) False (b) True
40. 40.True or false: to measure the same way is good testing. (a) False (b) True

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