Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 91 · 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.🔢 To build and test a straw bridge, which is the LAST step? (a) sketch three ideas (b) load it with coins (c) strengthen the weak part (d) read the challenge rules
2. 2.True or false: to change lots at once is poor testing. (a) True (b) False
3. 3.🧪 Is it good or poor testing to skip writing results? (a) good testing (b) poor testing
4. 4.🧪 Is it good or poor testing to use a new load each time? (a) poor testing (b) good testing
5. 5.🧪 A paper bridge was tested three times. It held 380 g, 260 g and 200 g. What is the mean (average) load it held, in grams?
6. 6.🔍 Which is the odd one out? (a) change only one thing (b) record every result (c) repeat each test (d) skip writing results
7. 7.True or false: to record every result is poor testing. (a) True (b) False
8. 8.🧪 Is it good or poor testing to record every result? (a) poor testing (b) good testing
9. 9.🧪 A paper bridge was tested three times. It held 190 g, 120 g and 260 g. What is the mean (average) load it held, in grams?
10. 10.🧪 Is it good or poor testing to measure the same way? (a) good testing (b) poor testing
11. 11.🧪 What is a prototype? (a) the final product (b) a sales poster (c) a broken part (d) an early test model
12. 12.🧪 Three prototype bridges were tested with the same method. Design A held 160 g, design B held 210 g and design C held 260 g. Which design was the weakest? (a) design B (b) design C (c) design A
13. 13.🧪 Three prototype bridges were tested with the same method. Design A held 330 g, design B held 230 g and design C held 280 g. Which design was the weakest? (a) design A (b) design B (c) design C
14. 14.🧪 Is it good or poor testing to use the same load? (a) good testing (b) poor testing
15. 15.True or false: to change only one thing is poor testing. (a) False (b) True
16. 16.🧪 Three prototype bridges were tested with the same method. Design A held 310 g, design B held 210 g and design C held 260 g. Which design was the strongest? (a) design B (b) design C (c) design A
17. 17.🧪 Three prototype bridges were tested with the same method. Design A held 300 g, design B held 350 g and design C held 400 g. Which design was the strongest? (a) design B (b) design A (c) design C
18. 18.🧪 Is it good or poor testing to test it only once? (a) poor testing (b) good testing
19. 19.🧪 Why repeat a test three times? (a) to use more paper (b) the first is wrong (c) it looks busy (d) to get reliable results
20. 20.🧪 Three prototype bridges were tested with the same method. Design A held 210 g, design B held 260 g and design C held 310 g. Which design was the weakest? (a) design C (b) design B (c) design A
21. 21.🧪 The first prototype held 80 g. After the team improved it, the new prototype held 260 g. How many more grams did it hold?
22. 22.🔍 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
23. 23.🧪 Why do engineers make prototypes? (a) to sell them at once (b) to avoid testing (c) to test ideas cheaply (d) to decorate a room
24. 24.🔍 Which is the odd one out? (a) change only one thing (b) use a new load each time (c) skip writing results (d) guess, do not measure
25. 25.🧪 Is it good or poor testing to change lots at once? (a) good testing (b) poor testing
26. 26.🧪 A paper bridge was tested three times. It held 260 g, 140 g and 230 g. What is the mean (average) load it held, in grams?
27. 27.True or false: to measure the same way is good testing. (a) False (b) True
28. 28.True or false: to guess, do not measure is poor testing. (a) False (b) True
29. 29.🧪 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 strongest? (a) design B (b) design C (c) design A
30. 30.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “load it with coins”? (a) read the challenge rules (b) load it with coins
31. 31.🔍 Which is the odd one out? (a) change only one thing (b) use a new load each time (c) record every result (d) use the same load
32. 32.True or false: to change only one thing is good testing. (a) False (b) True
33. 33.🧪 A paper bridge was tested three times. It held 290 g, 110 g and 230 g. What is the mean (average) load it held, in grams?
34. 34.🧪 Three prototype bridges were tested with the same method. Design A held 280 g, design B held 230 g and design C held 180 g. Which design was the weakest? (a) design B (b) design A (c) design C
35. 35.🔍 Which is the odd one out? (a) hide a failed test (b) use the same load (c) record every result (d) measure the same way
36. 36.True or false: to repeat each test is good testing. (a) True (b) False
37. 37.🧪 A paper bridge was tested three times. It held 200 g, 160 g and 180 g. What is the mean (average) load it held, in grams?
38. 38.🧪 The first prototype held 210 g. After the team improved it, the new prototype held 240 g. How many more grams did it hold?
39. 39.True or false: to hide a failed test is poor testing. (a) False (b) True
40. 40.🔢 To build and test a straw bridge, which is the FIRST step? (a) load it with coins (b) choose and draw one (c) build it with straws (d) read the challenge rules

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