Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 182 · 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.🧪 Is it good or poor testing to use a new load each time? (a) poor testing (b) good testing
2. 2.🧪 Is it good or poor testing to measure the same way? (a) good testing (b) poor testing
3. 3.🧪 Three prototype bridges were tested with the same method. Design A held 210 g, design B held 260 g and design C held 160 g. Which design was the weakest? (a) design A (b) design B (c) design C
4. 4.🔢 To build and test a straw bridge, which is the FIRST step? (a) build it with straws (b) sketch three ideas (c) strengthen the weak part (d) read the challenge rules
5. 5.🧪 A paper bridge was tested three times. It held 260 g, 170 g and 110 g. What is the mean (average) load it held, in grams?
6. 6.🧪 A paper bridge was tested three times. It held 420 g, 290 g and 250 g. What is the mean (average) load it held, in grams?
7. 7.True or false: to use a new load each time is poor testing. (a) False (b) True
8. 8.🧪 Three prototype bridges were tested with the same method. Design A held 320 g, design B held 270 g and design C held 220 g. Which design was the strongest? (a) design B (b) design A (c) design C
9. 9.🧪 What is a prototype? (a) the final product (b) a broken part (c) an early test model (d) a sales poster
10. 10.🔢 To build and test a straw bridge, what comes right after “choose and draw one”? (a) load it with coins (b) strengthen the weak part (c) build it with straws (d) sketch three ideas
11. 11.🧪 Is it good or poor testing to test it only once? (a) good testing (b) poor testing
12. 12.🧪 Is it good or poor testing to use the same load? (a) good testing (b) poor testing
13. 13.🧪 Three prototype bridges were tested with the same method. Design A held 130 g, design B held 230 g and design C held 180 g. Which design was the strongest? (a) design A (b) design C (c) design B
14. 14.🔍 Which is the odd one out? (a) measure the same way (b) change lots at once (c) change only one thing (d) use the same load
15. 15.🔍 Which is the odd one out? (a) repeat each test (b) hide a failed test (c) change lots at once (d) skip writing results
16. 16.🧪 In a fair test, how many things do you change at a time? (a) all of them (b) none (c) two (d) one
17. 17.🔍 Which is the odd one out? (a) measure the same way (b) use a new load each time (c) change lots at once (d) hide a failed test
18. 18.🧪 Three prototype bridges were tested with the same method. Design A held 120 g, design B held 220 g and design C held 170 g. Which design was the weakest? (a) design C (b) design B (c) design A
19. 19.🔍 Which is the odd one out? (a) skip writing results (b) measure the same way (c) change only one thing (d) repeat each test
20. 20.🧪 A paper bridge was tested three times. It held 260 g, 130 g and 210 g. What is the mean (average) load it held, in grams?
21. 21.🧪 Why do engineers make prototypes? (a) to test ideas cheaply (b) to sell them at once (c) to avoid testing (d) to decorate a room
22. 22.🔍 Which is the odd one out? (a) use the same load (b) test it only once (c) skip writing results (d) change lots at once
23. 23.🔢 To build and test a straw bridge, what comes right after “load it with coins”? (a) strengthen the weak part (b) choose and draw one (c) build it with straws (d) sketch three ideas
24. 24.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “choose and draw one”? (a) read the challenge rules (b) choose and draw one
25. 25.🔢 To build and test a straw bridge, what comes right after “read the challenge rules”? (a) load it with coins (b) build it with straws (c) strengthen the weak part (d) sketch three ideas
26. 26.🔢 To build and test a straw bridge, which comes first: “build it with straws” or “load it with coins”? (a) load it with coins (b) build it with straws
27. 27.🧪 Is it good or poor testing to hide a failed test? (a) good testing (b) poor testing
28. 28.True or false: to change only one thing is poor testing. (a) False (b) True
29. 29.🧪 Three prototype bridges were tested with the same method. Design A held 310 g, design B held 260 g and design C held 210 g. Which design was the weakest? (a) design B (b) design C (c) design A
30. 30.🧪 Three prototype bridges were tested with the same method. Design A held 350 g, design B held 400 g and design C held 300 g. Which design was the weakest? (a) design A (b) design C (c) design B
31. 31.🧪 The first prototype held 120 g. After the team improved it, the new prototype held 150 g. How many more grams did it hold?
32. 32.🧪 A paper bridge was tested three times. It held 220 g, 70 g and 160 g. What is the mean (average) load it held, in grams?
33. 33.🧪 Three prototype bridges were tested with the same method. Design A held 340 g, design B held 390 g and design C held 290 g. Which design was the weakest? (a) design B (b) design A (c) design C
34. 34.🧪 Three prototype bridges were tested with the same method. Design A held 260 g, design B held 310 g and design C held 210 g. Which design was the weakest? (a) design A (b) design C (c) design B
35. 35.🔢 To build and test a straw bridge, which is the LAST step? (a) read the challenge rules (b) choose and draw one (c) sketch three ideas (d) strengthen the weak part
36. 36.🧪 A paper bridge was tested three times. It held 360 g, 280 g and 410 g. What is the mean (average) load it held, in grams?
37. 37.🧪 Three prototype bridges were tested with the same method. Design A held 160 g, design B held 210 g and design C held 110 g. Which design was the weakest? (a) design A (b) design B (c) design C
38. 38.🔍 Which is the odd one out? (a) change only one thing (b) hide a failed test (c) use the same load (d) record every result
39. 39.🧪 A paper bridge was tested three times. It held 330 g, 260 g and 250 g. What is the mean (average) load it held, in grams?
40. 40.🧪 The first prototype held 70 g. After the team improved it, the new prototype held 110 g. How many more grams did it hold?

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