Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 1 · 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 220 g. How many more grams did it hold?
2. 2.🔍 Which is the odd one out? (a) change lots at once (b) measure the same way (c) skip writing results (d) test it only once
3. 3.True or false: to change only one thing is good testing. (a) False (b) True
4. 4.🧪 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 B (b) design A (c) design C
5. 5.🔢 To build and test a straw bridge, which comes first: “choose and draw one” or “sketch three ideas”? (a) choose and draw one (b) sketch three ideas
6. 6.🔍 Which is the odd one out? (a) repeat each test (b) use the same load (c) guess, do not measure (d) change only one thing
7. 7.🧪 Why do engineers make prototypes? (a) to avoid testing (b) to decorate a room (c) to sell them at once (d) to test ideas cheaply
8. 8.True or false: to record every result is good testing. (a) False (b) True
9. 9.🧪 A paper bridge was tested three times. It held 160 g, 80 g and 240 g. What is the mean (average) load it held, in grams?
10. 10.True or false: to record every result is poor testing. (a) True (b) False
11. 11.🔍 Which is the odd one out? (a) record every result (b) use the same load (c) skip writing results (d) measure the same way
12. 12.🧪 In a fair test, how many things do you change at a time? (a) one (b) all of them (c) none (d) two
13. 13.🧪 Is it good or poor testing to guess, do not measure? (a) poor testing (b) good testing
14. 14.True or false: to use the same load is poor testing. (a) False (b) True
15. 15.🧪 Is it good or poor testing to use the same load? (a) poor testing (b) good testing
16. 16.🧪 A paper bridge was tested three times. It held 240 g, 200 g and 220 g. What is the mean (average) load it held, in grams?
17. 17.True or false: to hide a failed test is good testing. (a) False (b) True
18. 18.🧪 A paper bridge was tested three times. It held 340 g, 200 g and 360 g. What is the mean (average) load it held, in grams?
19. 19.🧪 A paper bridge was tested three times. It held 340 g, 330 g and 320 g. What is the mean (average) load it held, in grams?
20. 20.🧪 Is it good or poor testing to change lots at once? (a) poor testing (b) good testing
21. 21.True or false: to guess, do not measure is good testing. (a) True (b) False
22. 22.🧪 Three prototype bridges were tested with the same method. Design A held 200 g, design B held 250 g and design C held 300 g. Which design was the strongest? (a) design A (b) design C (c) design B
23. 23.🔍 Which is the odd one out? (a) skip writing results (b) guess, do not measure (c) repeat each test (d) test it only once
24. 24.True or false: to repeat each test is good testing. (a) False (b) True
25. 25.🔢 To build and test a straw bridge, which comes first: “strengthen the weak part” or “read the challenge rules”? (a) strengthen the weak part (b) read the challenge rules
26. 26.🧪 Why repeat a test three times? (a) the first is wrong (b) to use more paper (c) to get reliable results (d) it looks busy
27. 27.🧪 Is it good or poor testing to use a new load each time? (a) good testing (b) poor testing
28. 28.🧪 Three prototype bridges were tested with the same method. Design A held 210 g, design B held 310 g and design C held 260 g. Which design was the weakest? (a) design B (b) design C (c) design A
29. 29.🔢 To build and test a straw bridge, which is the LAST step? (a) read the challenge rules (b) load it with coins (c) sketch three ideas (d) strengthen the weak part
30. 30.🧪 Is it good or poor testing to skip writing results? (a) poor testing (b) good testing
31. 31.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “build it with straws”? (a) read the challenge rules (b) build it with straws
32. 32.🧪 The first prototype held 50 g. After the team improved it, the new prototype held 140 g. How many more grams did it hold?
33. 33.🔍 Which is the odd one out? (a) record every result (b) test it only once (c) use the same load (d) change only one thing
34. 34.🧪 Is it good or poor testing to repeat each test? (a) good testing (b) poor testing
35. 35.🔢 To build and test a straw bridge, what comes right after “read the challenge rules”? (a) sketch three ideas (b) strengthen the weak part (c) build it with straws (d) load it with coins
36. 36.🧪 Is it good or poor testing to change only one thing? (a) poor testing (b) good testing
37. 37.🔢 To build and test a straw bridge, which is the FIRST step? (a) strengthen the weak part (b) load it with coins (c) choose and draw one (d) read the challenge rules
38. 38.🧪 Three prototype bridges were tested with the same method. Design A held 230 g, design B held 130 g and design C held 180 g. Which design was the weakest? (a) design B (b) design C (c) design A
39. 39.🧪 What is a prototype? (a) the final product (b) an early test model (c) a sales poster (d) a broken part
40. 40.🧪 A paper bridge was tested three times. It held 340 g, 220 g and 220 g. What is the mean (average) load it held, in grams?

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