Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 659 · 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 use the same load? (a) poor testing (b) good testing
2. 2.🔢 To build and test a straw bridge, which comes first: “strengthen the weak part” or “load it with coins”? (a) strengthen the weak part (b) load it with coins
3. 3.🧪 Is it good or poor testing to repeat each test? (a) poor testing (b) good testing
4. 4.🔍 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
5. 5.🔢 To build and test a straw bridge, which comes first: “sketch three ideas” or “choose and draw one”? (a) sketch three ideas (b) choose and draw one
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.True or false: to record every result is good testing. (a) True (b) False
8. 8.🔍 Which is the odd one out? (a) change only one thing (b) measure the same way (c) test it only once (d) record every result
9. 9.True or false: to measure the same way is poor testing. (a) False (b) True
10. 10.🔍 Which is the odd one out? (a) measure the same way (b) repeat each test (c) record every result (d) skip writing results
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 strongest? (a) design B (b) design C (c) design A
12. 12.🔍 Which is the odd one out? (a) measure the same way (b) hide a failed test (c) guess, do not measure (d) test it only once
13. 13.🧪 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
14. 14.🧪 Is it good or poor testing to record every result? (a) good testing (b) poor testing
15. 15.True or false: to guess, do not measure is poor testing. (a) False (b) True
16. 16.🧪 Is it good or poor testing to use a new load each time? (a) poor testing (b) good testing
17. 17.True or false: to change only one thing is good testing. (a) True (b) False
18. 18.🧪 Three prototype bridges were tested with the same method. Design A held 260 g, design B held 310 g and design C held 360 g. Which design was the weakest? (a) design B (b) design A (c) design C
19. 19.🧪 Is it good or poor testing to test it only once? (a) good testing (b) poor testing
20. 20.🧪 The first prototype held 50 g. After the team improved it, the new prototype held 70 g. How many more grams did it hold?
21. 21.🔢 To build and test a straw bridge, what comes right after “build it with straws”? (a) load it with coins (b) read the challenge rules (c) choose and draw one (d) sketch three ideas
22. 22.🧪 A paper bridge was tested three times. It held 310 g, 180 g and 170 g. What is the mean (average) load it held, in grams?
23. 23.🧪 A paper bridge was tested three times. It held 270 g, 150 g and 150 g. What is the mean (average) load it held, in grams?
24. 24.🧪 Is it good or poor testing to measure the same way? (a) poor testing (b) good testing
25. 25.🔍 Which is the odd one out? (a) change only one thing (b) use a new load each time (c) measure the same way (d) record every result
26. 26.🧪 In a fair test, how many things do you change at a time? (a) two (b) none (c) one (d) all of them
27. 27.True or false: to guess, do not measure is good testing. (a) True (b) False
28. 28.True or false: to repeat each test is poor testing. (a) False (b) True
29. 29.True or false: to record every result is poor testing. (a) False (b) True
30. 30.True or false: to change lots at once is good testing. (a) False (b) True
31. 31.True or false: to use the same load is good testing. (a) True (b) False
32. 32.🔍 Which is the odd one out? (a) measure the same way (b) hide a failed test (c) use the same load (d) change only one thing
33. 33.🧪 Three prototype bridges were tested with the same method. Design A held 110 g, design B held 160 g and design C held 210 g. Which design was the strongest? (a) design C (b) design A (c) design B
34. 34.🧪 A paper bridge was tested three times. It held 270 g, 180 g and 240 g. What is the mean (average) load it held, in grams?
35. 35.🧪 The first prototype held 170 g. After the team improved it, the new prototype held 180 g. How many more grams did it hold?
36. 36.🔢 To build and test a straw bridge, which is the LAST step? (a) load it with coins (b) sketch three ideas (c) strengthen the weak part (d) read the challenge rules
37. 37.🧪 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 B (b) design A (c) design C
38. 38.🧪 What is a prototype? (a) a sales poster (b) a broken part (c) the final product (d) an early test model
39. 39.🔢 To build and test a straw bridge, which is the FIRST step? (a) build it with straws (b) strengthen the weak part (c) read the challenge rules (d) sketch three ideas
40. 40.🧪 A paper bridge was tested three times. It held 210 g, 140 g and 220 g. What is the mean (average) load it held, in grams?

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