Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 883 · 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.🧪 Three prototype bridges were tested with the same method. Design A held 330 g, design B held 280 g and design C held 230 g. Which design was the weakest? (a) design C (b) design A (c) design B
2. 2.🔍 Which is the odd one out? (a) change only one thing (b) record every result (c) use the same load (d) hide a failed test
3. 3.🧪 Why repeat a test three times? (a) to use more paper (b) to get reliable results (c) it looks busy (d) the first is wrong
4. 4.🧪 A paper bridge was tested three times. It held 350 g, 160 g and 240 g. What is the mean (average) load it held, in grams?
5. 5.🧪 Is it good or poor testing to change lots at once? (a) poor testing (b) good testing
6. 6.🧪 The first prototype held 290 g. After the team improved it, the new prototype held 450 g. How many more grams did it hold?
7. 7.🔍 Which is the odd one out? (a) use the same load (b) guess, do not measure (c) record every result (d) change only one thing
8. 8.True or false: to repeat each test is poor testing. (a) False (b) True
9. 9.🧪 What is a prototype? (a) a broken part (b) the final product (c) a sales poster (d) an early test model
10. 10.🔍 Which is the odd one out? (a) repeat each test (b) measure the same way (c) test it only once (d) use the same load
11. 11.🔍 Which is the odd one out? (a) hide a failed test (b) skip writing results (c) record every result (d) change lots at once
12. 12.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “choose and draw one”? (a) choose and draw one (b) read the challenge rules
13. 13.🔢 To build and test a straw bridge, which is the FIRST step? (a) strengthen the weak part (b) load it with coins (c) build it with straws (d) read the challenge rules
14. 14.🧪 Three prototype bridges were tested with the same method. Design A held 390 g, design B held 340 g and design C held 290 g. Which design was the strongest? (a) design C (b) design A (c) design B
15. 15.🔢 To build and test a straw bridge, which comes first: “sketch three ideas” or “choose and draw one”? (a) choose and draw one (b) sketch three ideas
16. 16.True or false: to measure the same way is good testing. (a) True (b) False
17. 17.🧪 Is it good or poor testing to hide a failed test? (a) good testing (b) poor testing
18. 18.🧪 The first prototype held 210 g. After the team improved it, the new prototype held 330 g. How many more grams did it hold?
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 strongest? (a) design B (b) design C (c) design A
20. 20.True or false: to test it only once is poor testing. (a) True (b) False
21. 21.🧪 A paper bridge was tested three times. It held 360 g, 230 g and 370 g. What is the mean (average) load it held, in grams?
22. 22.🧪 Is it good or poor testing to record every result? (a) poor testing (b) good testing
23. 23.🧪 Three prototype bridges were tested with the same method. Design A held 260 g, design B held 210 g and design C held 310 g. Which design was the strongest? (a) design A (b) design C (c) design B
24. 24.🔍 Which is the odd one out? (a) measure the same way (b) use the same load (c) skip writing results (d) change only one thing
25. 25.🧪 A paper bridge was tested three times. It held 390 g, 240 g and 270 g. What is the mean (average) load it held, in grams?
26. 26.🧪 A paper bridge was tested three times. It held 270 g, 140 g and 130 g. What is the mean (average) load it held, in grams?
27. 27.🧪 The first prototype held 160 g. After the team improved it, the new prototype held 290 g. How many more grams did it hold?
28. 28.True or false: to skip writing results is poor testing. (a) True (b) False
29. 29.🧪 In a fair test, how many things do you change at a time? (a) one (b) none (c) two (d) all of them
30. 30.🔢 To build and test a straw bridge, what comes right after “read the challenge rules”? (a) build it with straws (b) load it with coins (c) choose and draw one (d) sketch three ideas
31. 31.🧪 Three prototype bridges were tested with the same method. Design A held 270 g, design B held 320 g and design C held 370 g. Which design was the weakest? (a) design A (b) design C (c) design B
32. 32.🧪 The first prototype held 70 g. After the team improved it, the new prototype held 150 g. How many more grams did it hold?
33. 33.🧪 Is it good or poor testing to change only one thing? (a) good testing (b) poor testing
34. 34.🧪 Three prototype bridges were tested with the same method. Design A held 220 g, design B held 170 g and design C held 120 g. Which design was the weakest? (a) design B (b) design A (c) design C
35. 35.🔢 To build and test a straw bridge, which is the LAST step? (a) sketch three ideas (b) read the challenge rules (c) strengthen the weak part (d) build it with straws
36. 36.True or false: to change lots at once is good testing. (a) True (b) False
37. 37.🧪 Three prototype bridges were tested with the same method. Design A held 320 g, design B held 220 g and design C held 270 g. Which design was the strongest? (a) design A (b) design C (c) design B
38. 38.🧪 Three prototype bridges were tested with the same method. Design A held 110 g, design B held 210 g and design C held 160 g. Which design was the weakest? (a) design B (b) design A (c) design C
39. 39.True or false: to change only one thing is poor testing. (a) True (b) False
40. 40.🧪 Is it good or poor testing to measure the same way? (a) good testing (b) poor testing

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