Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 319 · 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.🧪 What is a prototype? (a) an early test model (b) a broken part (c) the final product (d) a sales poster
2. 2.🧪 The first prototype held 210 g. After the team improved it, the new prototype held 370 g. How many more grams did it hold?
3. 3.🧪 Is it good or poor testing to hide a failed test? (a) good testing (b) poor testing
4. 4.🔍 Which is the odd one out? (a) skip writing results (b) use a new load each time (c) change only one thing (d) change lots at once
5. 5.🧪 The first prototype held 290 g. After the team improved it, the new prototype held 300 g. How many more grams did it hold?
6. 6.🧪 A paper bridge was tested three times. It held 220 g, 180 g and 260 g. What is the mean (average) load it held, in grams?
7. 7.🔢 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
8. 8.🧪 Three prototype bridges were tested with the same method. Design A held 390 g, design B held 290 g and design C held 340 g. Which design was the strongest? (a) design A (b) design C (c) design B
9. 9.🧪 Why repeat a test three times? (a) to use more paper (b) it looks busy (c) to get reliable results (d) the first is wrong
10. 10.🧪 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 A (b) design C (c) design B
11. 11.🧪 Three prototype bridges were tested with the same method. Design A held 220 g, design B held 170 g and design C held 270 g. Which design was the strongest? (a) design A (b) design B (c) design C
12. 12.🧪 Is it good or poor testing to measure the same way? (a) poor testing (b) good testing
13. 13.🧪 A paper bridge was tested three times. It held 400 g, 280 g and 310 g. What is the mean (average) load it held, in grams?
14. 14.🧪 Is it good or poor testing to change only one thing? (a) good testing (b) poor testing
15. 15.🧪 The first prototype held 120 g. After the team improved it, the new prototype held 180 g. How many more grams did it hold?
16. 16.🧪 A paper bridge was tested three times. It held 350 g, 280 g and 210 g. What is the mean (average) load it held, in grams?
17. 17.🧪 Is it good or poor testing to test it only once? (a) poor testing (b) good testing
18. 18.🧪 A paper bridge was tested three times. It held 330 g, 140 g and 220 g. What is the mean (average) load it held, in grams?
19. 19.🧪 A paper bridge was tested three times. It held 380 g, 230 g and 260 g. What is the mean (average) load it held, in grams?
20. 20.True or false: to use the same load is poor testing. (a) False (b) True
21. 21.🧪 The first prototype held 210 g. After the team improved it, the new prototype held 320 g. How many more grams did it hold?
22. 22.🧪 The first prototype held 200 g. After the team improved it, the new prototype held 260 g. How many more grams did it hold?
23. 23.🧪 Three prototype bridges were tested with the same method. Design A held 190 g, design B held 240 g and design C held 290 g. Which design was the strongest? (a) design C (b) design A (c) design B
24. 24.🔍 Which is the odd one out? (a) measure the same way (b) record every result (c) repeat each test (d) test it only once
25. 25.🧪 A paper bridge was tested three times. It held 320 g, 260 g and 320 g. What is the mean (average) load it held, in grams?
26. 26.🧪 Three prototype bridges were tested with the same method. Design A held 250 g, design B held 300 g and design C held 350 g. Which design was the weakest? (a) design B (b) design C (c) design A
27. 27.🔢 To build and test a straw bridge, what comes right after “sketch three ideas”? (a) choose and draw one (b) strengthen the weak part (c) read the challenge rules (d) load it with coins
28. 28.🧪 Is it good or poor testing to repeat each test? (a) good testing (b) poor testing
29. 29.True or false: to repeat each test is good testing. (a) False (b) True
30. 30.🧪 The first prototype held 230 g. After the team improved it, the new prototype held 410 g. How many more grams did it hold?
31. 31.🔢 To build and test a straw bridge, which is the FIRST step? (a) build it with straws (b) read the challenge rules (c) sketch three ideas (d) choose and draw one
32. 32.True or false: to guess, do not measure is poor testing. (a) True (b) False
33. 33.🧪 A paper bridge was tested three times. It held 330 g, 220 g and 230 g. What is the mean (average) load it held, in grams?
34. 34.True or false: to use a new load each time is good testing. (a) True (b) False
35. 35.🧪 Three prototype bridges were tested with the same method. Design A held 220 g, design B held 270 g and design C held 170 g. Which design was the strongest? (a) design B (b) design C (c) design A
36. 36.🔢 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
37. 37.🔍 Which is the odd one out? (a) change only one thing (b) repeat each test (c) use the same load (d) use a new load each time
38. 38.🔍 Which is the odd one out? (a) skip writing results (b) guess, do not measure (c) test it only once (d) measure the same way
39. 39.True or false: to measure the same way is poor testing. (a) True (b) False
40. 40.🧪 A paper bridge was tested three times. It held 280 g, 140 g and 180 g. What is the mean (average) load it held, in grams?

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