Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 109 · 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.🧪 The first prototype held 60 g. After the team improved it, the new prototype held 110 g. How many more grams did it hold?
2. 2.🧪 Is it good or poor testing to measure the same way? (a) good testing (b) poor testing
3. 3.🔢 To build and test a straw bridge, which is the FIRST step? (a) read the challenge rules (b) strengthen the weak part (c) load it with coins (d) build it with straws
4. 4.🔍 Which is the odd one out? (a) record every result (b) use the same load (c) repeat each test (d) guess, do not measure
5. 5.🧪 The first prototype held 220 g. After the team improved it, the new prototype held 310 g. How many more grams did it hold?
6. 6.🔢 To build and test a straw bridge, which comes first: “load it with coins” or “sketch three ideas”? (a) load it with coins (b) sketch three ideas
7. 7.🧪 Is it good or poor testing to change only one thing? (a) good testing (b) poor testing
8. 8.True or false: to hide a failed test is poor testing. (a) True (b) False
9. 9.True or false: to guess, do not measure is poor testing. (a) True (b) False
10. 10.🧪 The first prototype held 70 g. After the team improved it, the new prototype held 200 g. How many more grams did it hold?
11. 11.True or false: to skip writing results is poor testing. (a) True (b) False
12. 12.🧪 A paper bridge was tested three times. It held 370 g, 260 g and 270 g. What is the mean (average) load it held, in grams?
13. 13.🧪 Is it good or poor testing to guess, do not measure? (a) good testing (b) poor testing
14. 14.🧪 Is it good or poor testing to hide a failed test? (a) good testing (b) poor testing
15. 15.True or false: to repeat each test is good testing. (a) True (b) False
16. 16.True or false: to guess, do not measure is good testing. (a) False (b) True
17. 17.🧪 The first prototype held 290 g. After the team improved it, the new prototype held 430 g. How many more grams did it hold?
18. 18.🔢 To build and test a straw bridge, what comes right after “read the challenge rules”? (a) load it with coins (b) strengthen the weak part (c) sketch three ideas (d) choose and draw one
19. 19.🧪 Three prototype bridges were tested with the same method. Design A held 370 g, design B held 320 g and design C held 270 g. Which design was the strongest? (a) design C (b) design B (c) design A
20. 20.🧪 In a fair test, how many things do you change at a time? (a) all of them (b) one (c) two (d) none
21. 21.🔢 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
22. 22.🧪 Three prototype bridges were tested with the same method. Design A held 340 g, design B held 290 g and design C held 240 g. Which design was the weakest? (a) design A (b) design C (c) design B
23. 23.🧪 Three prototype bridges were tested with the same method. Design A held 350 g, design B held 300 g and design C held 250 g. Which design was the strongest? (a) design C (b) design B (c) design A
24. 24.🧪 Three prototype bridges were tested with the same method. Design A held 220 g, design B held 120 g and design C held 170 g. Which design was the strongest? (a) design A (b) design C (c) design B
25. 25.🧪 Why do engineers make prototypes? (a) to sell them at once (b) to test ideas cheaply (c) to decorate a room (d) to avoid testing
26. 26.🧪 Is it good or poor testing to skip writing results? (a) good testing (b) poor testing
27. 27.🧪 A paper bridge was tested three times. It held 160 g, 70 g and 220 g. What is the mean (average) load it held, in grams?
28. 28.🧪 Three prototype bridges were tested with the same method. Design A held 190 g, design B held 140 g and design C held 240 g. Which design was the strongest? (a) design B (b) design C (c) design A
29. 29.🧪 Is it good or poor testing to record every result? (a) good testing (b) poor testing
30. 30.🧪 Is it good or poor testing to test it only once? (a) good testing (b) poor testing
31. 31.🧪 A paper bridge was tested three times. It held 350 g, 260 g and 440 g. What is the mean (average) load it held, in grams?
32. 32.🧪 What is a prototype? (a) the final product (b) a broken part (c) a sales poster (d) an early test model
33. 33.🧪 The first prototype held 160 g. After the team improved it, the new prototype held 300 g. How many more grams did it hold?
34. 34.🧪 Is it good or poor testing to change lots at once? (a) poor testing (b) good testing
35. 35.True or false: to record every result is good testing. (a) False (b) True
36. 36.True or false: to measure the same way is poor testing. (a) False (b) True
37. 37.🔍 Which is the odd one out? (a) test it only once (b) guess, do not measure (c) record every result (d) change lots at once
38. 38.🔍 Which is the odd one out? (a) hide a failed test (b) use a new load each time (c) test it only once (d) use the same load
39. 39.🧪 Is it good or poor testing to repeat each test? (a) good testing (b) poor testing
40. 40.🔍 Which is the odd one out? (a) measure the same way (b) repeat each test (c) use the same load (d) use a new load each time

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