Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 588 · 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 70 g. After the team improved it, the new prototype held 90 g. How many more grams did it hold?
2. 2.🧪 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 C (b) design B (c) design A
3. 3.🧪 The first prototype held 290 g. After the team improved it, the new prototype held 490 g. How many more grams did it hold?
4. 4.🧪 Why do engineers make prototypes? (a) to decorate a room (b) to test ideas cheaply (c) to sell them at once (d) to avoid testing
5. 5.🧪 Is it good or poor testing to skip writing results? (a) good testing (b) poor testing
6. 6.🧪 Is it good or poor testing to use the same load? (a) poor testing (b) good testing
7. 7.🧪 Is it good or poor testing to use a new load each time? (a) good testing (b) poor testing
8. 8.🧪 The first prototype held 210 g. After the team improved it, the new prototype held 350 g. How many more grams did it hold?
9. 9.🔢 To build and test a straw bridge, which is the FIRST step? (a) read the challenge rules (b) load it with coins (c) sketch three ideas (d) strengthen the weak part
10. 10.🔢 To build and test a straw bridge, what comes right after “read the challenge rules”? (a) choose and draw one (b) build it with straws (c) sketch three ideas (d) load it with coins
11. 11.🧪 Three prototype bridges were tested with the same method. Design A held 180 g, design B held 280 g and design C held 230 g. Which design was the weakest? (a) design A (b) design B (c) design C
12. 12.🔍 Which is the odd one out? (a) test it only once (b) use the same load (c) repeat each test (d) change only one thing
13. 13.🔢 To build and test a straw bridge, what comes right after “sketch three ideas”? (a) read the challenge rules (b) choose and draw one (c) strengthen the weak part (d) load it with coins
14. 14.🔢 To build and test a straw bridge, which comes first: “strengthen the weak part” or “choose and draw one”? (a) strengthen the weak part (b) choose and draw one
15. 15.🧪 Is it good or poor testing to repeat each test? (a) good testing (b) poor testing
16. 16.🔢 To build and test a straw bridge, what comes right after “choose and draw one”? (a) sketch three ideas (b) strengthen the weak part (c) read the challenge rules (d) build it with straws
17. 17.🧪 Three prototype bridges were tested with the same method. Design A held 200 g, design B held 250 g and design C held 150 g. Which design was the weakest? (a) design C (b) design B (c) design A
18. 18.🧪 The first prototype held 180 g. After the team improved it, the new prototype held 270 g. How many more grams did it hold?
19. 19.True or false: to repeat each test is good testing. (a) False (b) True
20. 20.🧪 Three prototype bridges were tested with the same method. Design A held 100 g, design B held 200 g and design C held 150 g. Which design was the strongest? (a) design A (b) design B (c) design C
21. 21.🔍 Which is the odd one out? (a) use a new load each time (b) use the same load (c) change only one thing (d) repeat each test
22. 22.🔍 Which is the odd one out? (a) test it only once (b) use a new load each time (c) measure the same way (d) hide a failed test
23. 23.🧪 Is it good or poor testing to test it only once? (a) poor testing (b) good testing
24. 24.True or false: to record every result is poor testing. (a) True (b) False
25. 25.🧪 Why repeat a test three times? (a) the first is wrong (b) it looks busy (c) to use more paper (d) to get reliable results
26. 26.🔢 To build and test a straw bridge, which comes first: “choose and draw one” or “read the challenge rules”? (a) choose and draw one (b) read the challenge rules
27. 27.🧪 Is it good or poor testing to change only one thing? (a) good testing (b) poor testing
28. 28.🔢 To build and test a straw bridge, which is the LAST step? (a) strengthen the weak part (b) read the challenge rules (c) choose and draw one (d) load it with coins
29. 29.🧪 The first prototype held 210 g. After the team improved it, the new prototype held 280 g. How many more grams did it hold?
30. 30.🧪 A paper bridge was tested three times. It held 250 g, 130 g and 100 g. What is the mean (average) load it held, in grams?
31. 31.🧪 A paper bridge was tested three times. It held 230 g, 200 g and 170 g. What is the mean (average) load it held, in grams?
32. 32.🔍 Which is the odd one out? (a) repeat each test (b) test it only once (c) skip writing results (d) guess, do not measure
33. 33.🧪 The first prototype held 170 g. After the team improved it, the new prototype held 350 g. How many more grams did it hold?
34. 34.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “sketch three ideas”? (a) sketch three ideas (b) read the challenge rules
35. 35.True or false: to measure the same way is poor testing. (a) True (b) False
36. 36.🧪 Is it good or poor testing to record every result? (a) good testing (b) poor testing
37. 37.🔍 Which is the odd one out? (a) change lots at once (b) guess, do not measure (c) change only one thing (d) hide a failed test
38. 38.🧪 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 B (c) design C
39. 39.🔍 Which is the odd one out? (a) use the same load (b) repeat each test (c) skip writing results (d) record every result
40. 40.🧪 The first prototype held 240 g. After the team improved it, the new prototype held 360 g. How many more grams did it hold?

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