Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 403 · 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 230 g. After the team improved it, the new prototype held 410 g. How many more grams did it hold?
2. 2.🧪 A paper bridge was tested three times. It held 380 g, 300 g and 250 g. What is the mean (average) load it held, in grams?
3. 3.True or false: to measure the same way is poor testing. (a) True (b) False
4. 4.🔢 To build and test a straw bridge, which is the LAST step? (a) strengthen the weak part (b) load it with coins (c) read the challenge rules (d) choose and draw one
5. 5.🔢 To build and test a straw bridge, which is the FIRST step? (a) strengthen the weak part (b) build it with straws (c) load it with coins (d) read the challenge rules
6. 6.🧪 Is it good or poor testing to change only one thing? (a) good testing (b) poor testing
7. 7.🧪 Is it good or poor testing to use the same load? (a) good testing (b) poor testing
8. 8.🧪 Is it good or poor testing to measure the same way? (a) good testing (b) poor testing
9. 9.True or false: to measure the same way is good testing. (a) True (b) False
10. 10.🔢 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
11. 11.🧪 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 A (b) design B (c) design C
12. 12.🧪 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 weakest? (a) design A (b) design B (c) design C
13. 13.🔢 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) sketch three ideas (d) build it with straws
14. 14.🧪 What is a prototype? (a) the final product (b) a sales poster (c) an early test model (d) a broken part
15. 15.🧪 Is it good or poor testing to guess, do not measure? (a) poor testing (b) good testing
16. 16.🧪 Why repeat a test three times? (a) it looks busy (b) to get reliable results (c) the first is wrong (d) to use more paper
17. 17.True or false: to use a new load each time is good testing. (a) False (b) True
18. 18.🧪 Is it good or poor testing to use a new load each time? (a) poor testing (b) good testing
19. 19.🔢 To build and test a straw bridge, what comes right after “build it with straws”? (a) sketch three ideas (b) read the challenge rules (c) strengthen the weak part (d) load it with coins
20. 20.True or false: to skip writing results is good testing. (a) True (b) False
21. 21.🧪 The first prototype held 170 g. After the team improved it, the new prototype held 180 g. How many more grams did it hold?
22. 22.🧪 A paper bridge was tested three times. It held 270 g, 190 g and 140 g. What is the mean (average) load it held, in grams?
23. 23.🔍 Which is the odd one out? (a) use the same load (b) record every result (c) measure the same way (d) guess, do not measure
24. 24.🔢 To build and test a straw bridge, what comes right after “read the challenge rules”? (a) choose and draw one (b) strengthen the weak part (c) build it with straws (d) sketch three ideas
25. 25.🧪 Is it good or poor testing to change lots at once? (a) good testing (b) poor testing
26. 26.🔢 To build and test a straw bridge, which comes first: “build it with straws” or “sketch three ideas”? (a) build it with straws (b) sketch three ideas
27. 27.🔍 Which is the odd one out? (a) change lots at once (b) measure the same way (c) use the same load (d) record every result
28. 28.🧪 The first prototype held 140 g. After the team improved it, the new prototype held 160 g. How many more grams did it hold?
29. 29.🧪 A paper bridge was tested three times. It held 240 g, 200 g and 250 g. What is the mean (average) load it held, in grams?
30. 30.🧪 A paper bridge was tested three times. It held 340 g, 180 g and 260 g. What is the mean (average) load it held, in grams?
31. 31.🧪 Why do engineers make prototypes? (a) to avoid testing (b) to test ideas cheaply (c) to decorate a room (d) to sell them at once
32. 32.🧪 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 B (b) design A (c) design C
33. 33.🧪 The first prototype held 70 g. After the team improved it, the new prototype held 210 g. How many more grams did it hold?
34. 34.🧪 Is it good or poor testing to repeat each test? (a) good testing (b) poor testing
35. 35.🔢 To build and test a straw bridge, what comes right after “choose and draw one”? (a) strengthen the weak part (b) sketch three ideas (c) read the challenge rules (d) build it with straws
36. 36.🔢 To build and test a straw bridge, which comes first: “sketch three ideas” or “build it with straws”? (a) build it with straws (b) sketch three ideas
37. 37.🧪 The first prototype held 170 g. After the team improved it, the new prototype held 340 g. How many more grams did it hold?
38. 38.True or false: to hide a failed test is good testing. (a) True (b) False
39. 39.True or false: to hide a failed test is poor testing. (a) False (b) True
40. 40.🧪 A paper bridge was tested three times. It held 200 g, 80 g and 200 g. What is the mean (average) load it held, in grams?

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