Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 726 · 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.🧪 The first prototype held 300 g. After the team improved it, the new prototype held 380 g. How many more grams did it hold?
2. 2.🧪 The first prototype held 120 g. After the team improved it, the new prototype held 250 g. How many more grams did it hold?
3. 3.🔢 To build and test a straw bridge, which is the LAST step? (a) sketch three ideas (b) choose and draw one (c) strengthen the weak part (d) read the challenge rules
4. 4.🧪 Is it good or poor testing to change lots at once? (a) poor testing (b) good testing
5. 5.🧪 Why do engineers make prototypes? (a) to sell them at once (b) to test ideas cheaply (c) to decorate a room (d) to avoid testing
6. 6.🧪 Is it good or poor testing to skip writing results? (a) poor testing (b) good testing
7. 7.🧪 Is it good or poor testing to change only one thing? (a) poor testing (b) good testing
8. 8.🧪 Three prototype bridges were tested with the same method. Design A held 100 g, design B held 150 g and design C held 200 g. Which design was the strongest? (a) design C (b) design A (c) design B
9. 9.🧪 Three prototype bridges were tested with the same method. Design A held 250 g, design B held 200 g and design C held 150 g. Which design was the strongest? (a) design A (b) design C (c) design B
10. 10.🔢 To build and test a straw bridge, what comes right after “read the challenge rules”? (a) sketch three ideas (b) load it with coins (c) choose and draw one (d) strengthen the weak part
11. 11.🧪 Is it good or poor testing to guess, do not measure? (a) good testing (b) poor testing
12. 12.🔍 Which is the odd one out? (a) measure the same way (b) use a new load each time (c) record every result (d) repeat each test
13. 13.🧪 A paper bridge was tested three times. It held 270 g, 210 g and 150 g. What is the mean (average) load it held, in grams?
14. 14.🔢 To build and test a straw bridge, which comes first: “choose and draw one” or “sketch three ideas”? (a) sketch three ideas (b) choose and draw one
15. 15.🧪 Three prototype bridges were tested with the same method. Design A held 210 g, design B held 110 g and design C held 160 g. Which design was the strongest? (a) design B (b) design C (c) design A
16. 16.🧪 Is it good or poor testing to hide a failed test? (a) good testing (b) poor testing
17. 17.🔢 To build and test a straw bridge, which is the FIRST step? (a) choose and draw one (b) read the challenge rules (c) sketch three ideas (d) load it with coins
18. 18.🧪 Is it good or poor testing to measure the same way? (a) poor testing (b) good testing
19. 19.🔍 Which is the odd one out? (a) change lots at once (b) skip writing results (c) record every result (d) hide a failed test
20. 20.🧪 A paper bridge was tested three times. It held 270 g, 110 g and 160 g. What is the mean (average) load it held, in grams?
21. 21.🧪 Three prototype bridges were tested with the same method. Design A held 230 g, design B held 180 g and design C held 130 g. Which design was the strongest? (a) design A (b) design B (c) design C
22. 22.🔢 To build and test a straw bridge, which comes first: “choose and draw one” or “build it with straws”? (a) choose and draw one (b) build it with straws
23. 23.True or false: to test it only once is poor testing. (a) True (b) False
24. 24.🧪 The first prototype held 120 g. After the team improved it, the new prototype held 130 g. How many more grams did it hold?
25. 25.🧪 Is it good or poor testing to test it only once? (a) good testing (b) poor testing
26. 26.🧪 Three prototype bridges were tested with the same method. Design A held 250 g, design B held 200 g and design C held 300 g. Which design was the strongest? (a) design A (b) design B (c) design C
27. 27.🧪 In a fair test, how many things do you change at a time? (a) all of them (b) two (c) none (d) one
28. 28.🔍 Which is the odd one out? (a) hide a failed test (b) change only one thing (c) test it only once (d) guess, do not measure
29. 29.True or false: to test it only once is good testing. (a) True (b) False
30. 30.🔢 To build and test a straw bridge, which comes first: “load it with coins” or “read the challenge rules”? (a) load it with coins (b) read the challenge rules
31. 31.🔍 Which is the odd one out? (a) measure the same way (b) record every result (c) repeat each test (d) change lots at once
32. 32.True or false: to hide a failed test is poor testing. (a) False (b) True
33. 33.🧪 A paper bridge was tested three times. It held 370 g, 210 g and 290 g. What is the mean (average) load it held, in grams?
34. 34.True or false: to change only one thing is good testing. (a) True (b) False
35. 35.🧪 What is a prototype? (a) a sales poster (b) a broken part (c) the final product (d) an early test model
36. 36.True or false: to skip writing results is poor testing. (a) False (b) True
37. 37.🧪 Is it good or poor testing to record every result? (a) poor testing (b) good testing
38. 38.🔢 To build and test a straw bridge, which comes first: “build it with straws” or “read the challenge rules”? (a) read the challenge rules (b) build it with straws
39. 39.True or false: to skip writing results is good testing. (a) False (b) True
40. 40.🧪 Three prototype bridges were tested with the same method. Design A held 140 g, design B held 240 g and design C held 190 g. Which design was the weakest? (a) design C (b) design B (c) design A

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