Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 151 · 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) use the same load (b) repeat each test (c) guess, do not measure (d) measure the same way
2. 2.🧪 The first prototype held 270 g. After the team improved it, the new prototype held 290 g. How many more grams did it hold?
3. 3.🧪 Why do engineers make prototypes? (a) to decorate a room (b) to sell them at once (c) to avoid testing (d) to test ideas cheaply
4. 4.🔍 Which is the odd one out? (a) change lots at once (b) skip writing results (c) hide a failed test (d) record every result
5. 5.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “build it with straws”? (a) build it with straws (b) read the challenge rules
6. 6.True or false: to record every result is poor testing. (a) True (b) False
7. 7.🧪 Is it good or poor testing to guess, do not measure? (a) poor testing (b) good testing
8. 8.🔢 To build and test a straw bridge, which comes first: “sketch three ideas” or “read the challenge rules”? (a) read the challenge rules (b) sketch three ideas
9. 9.🧪 Why repeat a test three times? (a) it looks busy (b) to use more paper (c) to get reliable results (d) the first is wrong
10. 10.🧪 Is it good or poor testing to hide a failed test? (a) good testing (b) poor testing
11. 11.True or false: to skip writing results is poor testing. (a) False (b) True
12. 12.🧪 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 C (b) design A (c) design B
13. 13.True or false: to measure the same way is poor testing. (a) True (b) False
14. 14.🔢 To build and test a straw bridge, what comes right after “build it with straws”? (a) read the challenge rules (b) strengthen the weak part (c) sketch three ideas (d) load it with coins
15. 15.🧪 What is a prototype? (a) an early test model (b) the final product (c) a broken part (d) a sales poster
16. 16.🧪 The first prototype held 210 g. After the team improved it, the new prototype held 330 g. How many more grams did it hold?
17. 17.True or false: to use a new load each time is poor testing. (a) False (b) True
18. 18.🔍 Which is the odd one out? (a) test it only once (b) hide a failed test (c) skip writing results (d) repeat each test
19. 19.🧪 Three prototype bridges were tested with the same method. Design A held 240 g, design B held 340 g and design C held 290 g. Which design was the weakest? (a) design A (b) design B (c) design C
20. 20.True or false: to record every result is good testing. (a) False (b) True
21. 21.🧪 The first prototype held 70 g. After the team improved it, the new prototype held 120 g. How many more grams did it hold?
22. 22.🧪 Is it good or poor testing to repeat each test? (a) good testing (b) poor testing
23. 23.True or false: to hide a failed test is poor testing. (a) True (b) False
24. 24.🧪 A paper bridge was tested three times. It held 430 g, 260 g and 300 g. What is the mean (average) load it held, in grams?
25. 25.True or false: to test it only once is poor testing. (a) False (b) True
26. 26.🔍 Which is the odd one out? (a) change only one thing (b) measure the same way (c) record every result (d) skip writing results
27. 27.True or false: to use the same load is good testing. (a) True (b) False
28. 28.🔢 To build and test a straw bridge, what comes right after “load it with coins”? (a) build it with straws (b) choose and draw one (c) strengthen the weak part (d) read the challenge rules
29. 29.🧪 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 B (c) design C
30. 30.🧪 Is it good or poor testing to use a new load each time? (a) good testing (b) poor testing
31. 31.🔢 To build and test a straw bridge, which is the LAST step? (a) strengthen the weak part (b) sketch three ideas (c) load it with coins (d) choose and draw one
32. 32.True or false: to skip writing results is good testing. (a) True (b) False
33. 33.🧪 Three prototype bridges were tested with the same method. Design A held 370 g, design B held 270 g and design C held 320 g. Which design was the weakest? (a) design C (b) design A (c) design B
34. 34.🧪 Three prototype bridges were tested with the same method. Design A held 290 g, design B held 390 g and design C held 340 g. Which design was the strongest? (a) design C (b) design A (c) design B
35. 35.🧪 Is it good or poor testing to measure the same way? (a) good testing (b) poor testing
36. 36.🔢 To build and test a straw bridge, which comes first: “choose and draw one” or “strengthen the weak part”? (a) strengthen the weak part (b) choose and draw one
37. 37.True or false: to change only one thing is poor testing. (a) True (b) False
38. 38.🧪 Is it good or poor testing to record every result? (a) poor testing (b) good testing
39. 39.🔢 To build and test a straw bridge, which is the FIRST step? (a) choose and draw one (b) load it with coins (c) sketch three ideas (d) read the challenge rules
40. 40.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “strengthen the weak part”? (a) strengthen the weak part (b) read the challenge rules

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