Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 855 · 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 record every result? (a) poor testing (b) good testing
2. 2.True or false: to skip writing results is good testing. (a) True (b) False
3. 3.🧪 What is a prototype? (a) the final product (b) a broken part (c) an early test model (d) a sales poster
4. 4.True or false: to repeat each test is good testing. (a) False (b) True
5. 5.True or false: to record every result is good testing. (a) True (b) False
6. 6.🧪 A paper bridge was tested three times. It held 270 g, 160 g and 170 g. What is the mean (average) load it held, in grams?
7. 7.🧪 Is it good or poor testing to test it only once? (a) poor testing (b) good testing
8. 8.🧪 Three prototype bridges were tested with the same method. Design A held 260 g, design B held 310 g and design C held 360 g. Which design was the weakest? (a) design A (b) design C (c) design B
9. 9.True or false: to change lots at once is poor testing. (a) False (b) True
10. 10.🧪 A paper bridge was tested three times. It held 260 g, 240 g and 280 g. What is the mean (average) load it held, in grams?
11. 11.🧪 Is it good or poor testing to use a new load each time? (a) good testing (b) poor testing
12. 12.True or false: to measure the same way is poor testing. (a) True (b) False
13. 13.🧪 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 strongest? (a) design C (b) design A (c) design B
14. 14.🔍 Which is the odd one out? (a) use a new load each time (b) repeat each test (c) skip writing results (d) test it only once
15. 15.🧪 Is it good or poor testing to change only one thing? (a) good testing (b) poor testing
16. 16.🔢 To build and test a straw bridge, which comes first: “sketch three ideas” or “strengthen the weak part”? (a) strengthen the weak part (b) sketch three ideas
17. 17.True or false: to use a new load each time is good testing. (a) True (b) False
18. 18.🧪 A paper bridge was tested three times. It held 300 g, 200 g and 310 g. What is the mean (average) load it held, in grams?
19. 19.True or false: to test it only once is good testing. (a) True (b) False
20. 20.🧪 In a fair test, how many things do you change at a time? (a) two (b) all of them (c) one (d) none
21. 21.🧪 Why do engineers make prototypes? (a) to sell them at once (b) to decorate a room (c) to avoid testing (d) to test ideas cheaply
22. 22.🧪 The first prototype held 60 g. After the team improved it, the new prototype held 80 g. How many more grams did it hold?
23. 23.🔍 Which is the odd one out? (a) guess, do not measure (b) change only one thing (c) use the same load (d) measure the same way
24. 24.🧪 Three prototype bridges were tested with the same method. Design A held 200 g, design B held 250 g and design C held 300 g. Which design was the weakest? (a) design B (b) design C (c) design A
25. 25.🔍 Which is the odd one out? (a) change only one thing (b) repeat each test (c) measure the same way (d) hide a failed test
26. 26.True or false: to change only one thing is good testing. (a) False (b) True
27. 27.🧪 A paper bridge was tested three times. It held 260 g, 180 g and 160 g. What is the mean (average) load it held, in grams?
28. 28.🔢 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
29. 29.🧪 Is it good or poor testing to use the same load? (a) poor testing (b) good testing
30. 30.🔢 To build and test a straw bridge, what comes right after “load it with coins”? (a) read the challenge rules (b) build it with straws (c) strengthen the weak part (d) sketch three ideas
31. 31.🧪 A paper bridge was tested three times. It held 380 g, 320 g and 350 g. What is the mean (average) load it held, in grams?
32. 32.🔍 Which is the odd one out? (a) change only one thing (b) skip writing results (c) repeat each test (d) record every result
33. 33.🔢 To build and test a straw bridge, what comes right after “build it with straws”? (a) load it with coins (b) strengthen the weak part (c) choose and draw one (d) read the challenge rules
34. 34.🧪 Is it good or poor testing to measure the same way? (a) poor testing (b) good testing
35. 35.🔍 Which is the odd one out? (a) record every result (b) use the same load (c) measure the same way (d) test it only once
36. 36.🧪 Three prototype bridges were tested with the same method. Design A held 300 g, design B held 250 g and design C held 350 g. Which design was the strongest? (a) design A (b) design B (c) design C
37. 37.🧪 The first prototype held 60 g. After the team improved it, the new prototype held 210 g. How many more grams did it hold?
38. 38.🧪 A paper bridge was tested three times. It held 270 g, 200 g and 250 g. What is the mean (average) load it held, in grams?
39. 39.🧪 Three prototype bridges were tested with the same method. Design A held 260 g, design B held 360 g and design C held 310 g. Which design was the weakest? (a) design B (b) design A (c) design C
40. 40.True or false: to hide a failed test is good testing. (a) False (b) True

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