Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 56 · 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 hide a failed test? (a) good testing (b) poor testing
2. 2.🧪 Three prototype bridges were tested with the same method. Design A held 200 g, design B held 150 g and design C held 100 g. Which design was the weakest? (a) design A (b) design B (c) design C
3. 3.🧪 Three prototype bridges were tested with the same method. Design A held 140 g, design B held 190 g and design C held 240 g. Which design was the strongest? (a) design C (b) design A (c) design B
4. 4.🧪 A paper bridge was tested three times. It held 210 g, 190 g and 200 g. What is the mean (average) load it held, in grams?
5. 5.🔢 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
6. 6.🔢 To build and test a straw bridge, which is the FIRST step? (a) load it with coins (b) read the challenge rules (c) strengthen the weak part (d) choose and draw one
7. 7.🧪 The first prototype held 110 g. After the team improved it, the new prototype held 200 g. How many more grams did it hold?
8. 8.🔢 To build and test a straw bridge, which comes first: “build it with straws” or “sketch three ideas”? (a) sketch three ideas (b) build it with straws
9. 9.🧪 The first prototype held 90 g. After the team improved it, the new prototype held 100 g. How many more grams did it hold?
10. 10.🧪 A paper bridge was tested three times. It held 430 g, 330 g and 290 g. What is the mean (average) load it held, in grams?
11. 11.🧪 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 strongest? (a) design C (b) design A (c) design B
12. 12.🔍 Which is the odd one out? (a) change only one thing (b) use the same load (c) measure the same way (d) hide a failed test
13. 13.🔍 Which is the odd one out? (a) use a new load each time (b) test it only once (c) change only one thing (d) change lots at once
14. 14.🧪 Three prototype bridges were tested with the same method. Design A held 250 g, design B held 350 g and design C held 300 g. Which design was the strongest? (a) design A (b) design B (c) design C
15. 15.🧪 A paper bridge was tested three times. It held 170 g, 170 g and 170 g. What is the mean (average) load it held, in grams?
16. 16.🧪 The first prototype held 110 g. After the team improved it, the new prototype held 280 g. How many more grams did it hold?
17. 17.🧪 Why do engineers make prototypes? (a) to decorate a room (b) to avoid testing (c) to sell them at once (d) to test ideas cheaply
18. 18.True or false: to skip writing results is poor testing. (a) True (b) False
19. 19.🧪 A paper bridge was tested three times. It held 340 g, 270 g and 350 g. What is the mean (average) load it held, in grams?
20. 20.🧪 The first prototype held 160 g. After the team improved it, the new prototype held 360 g. How many more grams did it hold?
21. 21.🔍 Which is the odd one out? (a) measure the same way (b) change only one thing (c) repeat each test (d) skip writing results
22. 22.🧪 Three prototype bridges were tested with the same method. Design A held 270 g, design B held 370 g and design C held 320 g. Which design was the weakest? (a) design C (b) design B (c) design A
23. 23.🧪 Is it good or poor testing to change only one thing? (a) good testing (b) poor testing
24. 24.🧪 Why repeat a test three times? (a) to use more paper (b) to get reliable results (c) it looks busy (d) the first is wrong
25. 25.🧪 Is it good or poor testing to test it only once? (a) good testing (b) poor testing
26. 26.🧪 A paper bridge was tested three times. It held 300 g, 140 g and 220 g. What is the mean (average) load it held, in grams?
27. 27.🧪 The first prototype held 140 g. After the team improved it, the new prototype held 310 g. How many more grams did it hold?
28. 28.🧪 What is a prototype? (a) the final product (b) an early test model (c) a sales poster (d) a broken part
29. 29.🔢 To build and test a straw bridge, what comes right after “choose and draw one”? (a) read the challenge rules (b) build it with straws (c) sketch three ideas (d) strengthen the weak part
30. 30.🔍 Which is the odd one out? (a) use the same load (b) use a new load each time (c) measure the same way (d) change only one thing
31. 31.🔢 To build and test a straw bridge, which is the LAST step? (a) build it with straws (b) strengthen the weak part (c) read the challenge rules (d) sketch three ideas
32. 32.🔍 Which is the odd one out? (a) guess, do not measure (b) test it only once (c) record every result (d) skip writing results
33. 33.🔢 To build and test a straw bridge, which comes first: “choose and draw one” or “strengthen the weak part”? (a) strengthen the weak part (b) choose and draw one
34. 34.🧪 Three prototype bridges were tested with the same method. Design A held 160 g, design B held 210 g and design C held 260 g. Which design was the weakest? (a) design C (b) design A (c) design B
35. 35.🧪 Is it good or poor testing to skip writing results? (a) good testing (b) poor testing
36. 36.🔍 Which is the odd one out? (a) use a new load each time (b) hide a failed test (c) guess, do not measure (d) use the same load
37. 37.🔍 Which is the odd one out? (a) change only one thing (b) use the same load (c) repeat each test (d) guess, do not measure
38. 38.🧪 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 A (b) design C (c) design B
39. 39.🧪 Is it good or poor testing to repeat each test? (a) poor testing (b) good testing
40. 40.🧪 Is it good or poor testing to record every result? (a) poor testing (b) good testing

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