Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 847 · 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.🧪 In a fair test, how many things do you change at a time? (a) two (b) one (c) none (d) all of them
2. 2.🧪 The first prototype held 200 g. After the team improved it, the new prototype held 210 g. How many more grams did it hold?
3. 3.🔢 To build and test a straw bridge, which comes first: “sketch three ideas” or “read the challenge rules”? (a) read the challenge rules (b) sketch three ideas
4. 4.🧪 Three prototype bridges were tested with the same method. Design A held 120 g, design B held 170 g and design C held 220 g. Which design was the weakest? (a) design A (b) design B (c) design C
5. 5.🧪 The first prototype held 70 g. After the team improved it, the new prototype held 270 g. How many more grams did it hold?
6. 6.🧪 A paper bridge was tested three times. It held 350 g, 290 g and 230 g. What is the mean (average) load it held, in grams?
7. 7.🧪 Is it good or poor testing to record every result? (a) poor testing (b) good testing
8. 8.🔢 To build and test a straw bridge, which comes first: “choose and draw one” or “load it with coins”? (a) load it with coins (b) choose and draw one
9. 9.🧪 Three prototype bridges were tested with the same method. Design A held 200 g, design B held 100 g and design C held 150 g. Which design was the weakest? (a) design B (b) design C (c) design A
10. 10.🧪 Three prototype bridges were tested with the same method. Design A held 270 g, design B held 320 g and design C held 220 g. Which design was the strongest? (a) design A (b) design B (c) design C
11. 11.🧪 Three prototype bridges were tested with the same method. Design A held 260 g, design B held 210 g and design C held 160 g. Which design was the strongest? (a) design A (b) design C (c) design B
12. 12.🔍 Which is the odd one out? (a) guess, do not measure (b) skip writing results (c) change only one thing (d) change lots at once
13. 13.🧪 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
14. 14.True or false: to hide a failed test is poor testing. (a) True (b) False
15. 15.🧪 A paper bridge was tested three times. It held 310 g, 230 g and 180 g. What is the mean (average) load it held, in grams?
16. 16.🧪 What is a prototype? (a) the final product (b) an early test model (c) a broken part (d) a sales poster
17. 17.🔍 Which is the odd one out? (a) skip writing results (b) hide a failed test (c) use a new load each time (d) measure the same way
18. 18.🧪 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 weakest? (a) design B (b) design C (c) design A
19. 19.🧪 Three prototype bridges were tested with the same method. Design A held 150 g, design B held 200 g and design C held 100 g. Which design was the strongest? (a) design C (b) design A (c) design B
20. 20.🧪 Is it good or poor testing to measure the same way? (a) good testing (b) poor testing
21. 21.🔍 Which is the odd one out? (a) change only one thing (b) use the same load (c) measure the same way (d) use a new load each time
22. 22.🔍 Which is the odd one out? (a) hide a failed test (b) repeat each test (c) record every result (d) use the same load
23. 23.True or false: to record every result is good testing. (a) True (b) False
24. 24.🧪 Why do engineers make prototypes? (a) to sell them at once (b) to decorate a room (c) to test ideas cheaply (d) to avoid testing
25. 25.🧪 Three prototype bridges were tested with the same method. Design A held 350 g, design B held 300 g and design C held 400 g. Which design was the weakest? (a) design C (b) design B (c) design A
26. 26.True or false: to change only one thing is poor testing. (a) False (b) True
27. 27.🧪 Is it good or poor testing to change only one thing? (a) poor testing (b) good testing
28. 28.🧪 A paper bridge was tested three times. It held 210 g, 50 g and 190 g. What is the mean (average) load it held, in grams?
29. 29.🔍 Which is the odd one out? (a) skip writing results (b) repeat each test (c) measure the same way (d) use the same load
30. 30.🔢 To build and test a straw bridge, what comes right after “build it with straws”? (a) strengthen the weak part (b) sketch three ideas (c) load it with coins (d) read the challenge rules
31. 31.🔍 Which is the odd one out? (a) guess, do not measure (b) measure the same way (c) repeat each test (d) use the same load
32. 32.True or false: to test it only once is good testing. (a) False (b) True
33. 33.True or false: to use the same load is good testing. (a) False (b) True
34. 34.🧪 Three prototype bridges were tested with the same method. Design A held 310 g, design B held 260 g and design C held 360 g. Which design was the strongest? (a) design C (b) design A (c) design B
35. 35.🧪 The first prototype held 260 g. After the team improved it, the new prototype held 440 g. How many more grams did it hold?
36. 36.True or false: to measure the same way is poor testing. (a) True (b) False
37. 37.🧪 Is it good or poor testing to guess, do not measure? (a) poor testing (b) good testing
38. 38.True or false: to hide a failed test is good testing. (a) False (b) True
39. 39.🧪 The first prototype held 140 g. After the team improved it, the new prototype held 340 g. How many more grams did it hold?
40. 40.🧪 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 B (b) design A (c) design C

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