Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 759 · 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.🧪 What is a prototype? (a) an early test model (b) the final product (c) a broken part (d) a sales poster
2. 2.True or false: to use a new load each time is poor testing. (a) False (b) True
3. 3.🔢 To build and test a straw bridge, what comes right after “sketch three ideas”? (a) load it with coins (b) read the challenge rules (c) build it with straws (d) choose and draw one
4. 4.True or false: to change only one thing is poor testing. (a) False (b) True
5. 5.True or false: to use a new load each time is good testing. (a) True (b) False
6. 6.🧪 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
7. 7.🧪 The first prototype held 260 g. After the team improved it, the new prototype held 390 g. How many more grams did it hold?
8. 8.🧪 Three prototype bridges were tested with the same method. Design A held 270 g, design B held 170 g and design C held 220 g. Which design was the strongest? (a) design A (b) design B (c) design C
9. 9.True or false: to measure the same way is good testing. (a) False (b) True
10. 10.🔍 Which is the odd one out? (a) test it only once (b) use the same load (c) change lots at once (d) use a new load each time
11. 11.🧪 Three prototype bridges were tested with the same method. Design A held 210 g, design B held 160 g and design C held 110 g. Which design was the weakest? (a) design A (b) design C (c) design B
12. 12.🔢 To build and test a straw bridge, which is the LAST step? (a) read the challenge rules (b) load it with coins (c) strengthen the weak part (d) build it with straws
13. 13.🔍 Which is the odd one out? (a) measure the same way (b) repeat each test (c) use a new load each time (d) use the same load
14. 14.🔢 To build and test a straw bridge, which is the FIRST step? (a) choose and draw one (b) strengthen the weak part (c) read the challenge rules (d) build it with straws
15. 15.🧪 Is it good or poor testing to use the same load? (a) poor testing (b) good testing
16. 16.🧪 The first prototype held 120 g. After the team improved it, the new prototype held 300 g. How many more grams did it hold?
17. 17.🔍 Which is the odd one out? (a) record every result (b) change lots at once (c) use the same load (d) repeat each test
18. 18.🧪 Is it good or poor testing to hide a failed test? (a) good testing (b) poor testing
19. 19.🧪 Why repeat a test three times? (a) it looks busy (b) to use more paper (c) to get reliable results (d) the first is wrong
20. 20.🧪 The first prototype held 270 g. After the team improved it, the new prototype held 290 g. How many more grams did it hold?
21. 21.🧪 Is it good or poor testing to test it only once? (a) good testing (b) poor testing
22. 22.🧪 Three prototype bridges were tested with the same method. Design A held 330 g, design B held 280 g and design C held 230 g. Which design was the weakest? (a) design C (b) design A (c) design B
23. 23.🧪 In a fair test, how many things do you change at a time? (a) two (b) none (c) all of them (d) one
24. 24.🧪 A paper bridge was tested three times. It held 220 g, 140 g and 120 g. What is the mean (average) load it held, in grams?
25. 25.🧪 The first prototype held 60 g. After the team improved it, the new prototype held 200 g. How many more grams did it hold?
26. 26.🧪 Three prototype bridges were tested with the same method. Design A held 160 g, design B held 260 g and design C held 210 g. Which design was the strongest? (a) design C (b) design A (c) design B
27. 27.🔢 To build and test a straw bridge, which comes first: “build it with straws” or “strengthen the weak part”? (a) strengthen the weak part (b) build it with straws
28. 28.🔍 Which is the odd one out? (a) change only one thing (b) use the same load (c) test it only once (d) measure the same way
29. 29.🧪 The first prototype held 210 g. After the team improved it, the new prototype held 310 g. How many more grams did it hold?
30. 30.🧪 Is it good or poor testing to skip writing results? (a) poor testing (b) good testing
31. 31.🧪 A paper bridge was tested three times. It held 220 g, 120 g and 110 g. What is the mean (average) load it held, in grams?
32. 32.🧪 A paper bridge was tested three times. It held 360 g, 270 g and 330 g. What is the mean (average) load it held, in grams?
33. 33.🧪 Three prototype bridges were tested with the same method. Design A held 200 g, design B held 100 g and design C held 150 g. Which design was the weakest? (a) design C (b) design A (c) design B
34. 34.🔍 Which is the odd one out? (a) hide a failed test (b) change only one thing (c) change lots at once (d) use a new load each time
35. 35.🧪 Is it good or poor testing to record every result? (a) poor testing (b) good testing
36. 36.🧪 A paper bridge was tested three times. It held 320 g, 160 g and 300 g. What is the mean (average) load it held, in grams?
37. 37.🧪 Three prototype bridges were tested with the same method. Design A held 330 g, design B held 380 g and design C held 280 g. Which design was the weakest? (a) design B (b) design A (c) design C
38. 38.True or false: to test it only once is good testing. (a) False (b) True
39. 39.🧪 The first prototype held 220 g. After the team improved it, the new prototype held 230 g. How many more grams did it hold?
40. 40.True or false: to skip writing results is poor testing. (a) False (b) True

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