Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 946 · 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.🧪 A paper bridge was tested three times. It held 360 g, 300 g and 330 g. What is the mean (average) load it held, in grams?
2. 2.🧪 Is it good or poor testing to measure the same way? (a) poor testing (b) good testing
3. 3.🧪 A paper bridge was tested three times. It held 290 g, 90 g and 190 g. What is the mean (average) load it held, in grams?
4. 4.🧪 A paper bridge was tested three times. It held 190 g, 150 g and 140 g. What is the mean (average) load it held, in grams?
5. 5.🔢 To build and test a straw bridge, which is the FIRST step? (a) choose and draw one (b) strengthen the weak part (c) sketch three ideas (d) read the challenge rules
6. 6.True or false: to use a new load each time is good testing. (a) False (b) True
7. 7.🧪 What is a prototype? (a) a sales poster (b) the final product (c) an early test model (d) a broken part
8. 8.🧪 A paper bridge was tested three times. It held 220 g, 200 g and 210 g. What is the mean (average) load it held, in grams?
9. 9.🔍 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
10. 10.🧪 Is it good or poor testing to use a new load each time? (a) good testing (b) poor testing
11. 11.🔢 To build and test a straw bridge, what comes right after “choose and draw one”? (a) load it with coins (b) sketch three ideas (c) strengthen the weak part (d) build it with straws
12. 12.True or false: to measure the same way is good testing. (a) False (b) True
13. 13.🧪 Three prototype bridges were tested with the same method. Design A held 150 g, design B held 100 g and design C held 200 g. Which design was the weakest? (a) design B (b) design A (c) design C
14. 14.🧪 A paper bridge was tested three times. It held 370 g, 330 g and 350 g. What is the mean (average) load it held, in grams?
15. 15.🧪 A paper bridge was tested three times. It held 210 g, 140 g and 280 g. What is the mean (average) load it held, in grams?
16. 16.True or false: to measure the same way is poor testing. (a) False (b) True
17. 17.True or false: to change only one thing is poor testing. (a) True (b) False
18. 18.🔢 To build and test a straw bridge, what comes right after “build it with straws”? (a) strengthen the weak part (b) read the challenge rules (c) load it with coins (d) choose and draw one
19. 19.🧪 The first prototype held 110 g. After the team improved it, the new prototype held 270 g. How many more grams did it hold?
20. 20.🔍 Which is the odd one out? (a) repeat each test (b) use the same load (c) guess, do not measure (d) record every result
21. 21.🔍 Which is the odd one out? (a) repeat each test (b) use a new load each time (c) record every result (d) change only one thing
22. 22.🧪 Is it good or poor testing to record every result? (a) good testing (b) poor testing
23. 23.🔍 Which is the odd one out? (a) repeat each test (b) measure the same way (c) record every result (d) skip writing results
24. 24.🧪 Is it good or poor testing to use the same load? (a) good testing (b) poor testing
25. 25.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “sketch three ideas”? (a) read the challenge rules (b) sketch three ideas
26. 26.🧪 Why do engineers make prototypes? (a) to test ideas cheaply (b) to avoid testing (c) to decorate a room (d) to sell them at once
27. 27.True or false: to change lots at once is poor testing. (a) False (b) True
28. 28.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “choose and draw one”? (a) read the challenge rules (b) choose and draw one
29. 29.🔢 To build and test a straw bridge, what comes right after “load it with coins”? (a) sketch three ideas (b) build it with straws (c) strengthen the weak part (d) choose and draw one
30. 30.🧪 The first prototype held 100 g. After the team improved it, the new prototype held 130 g. How many more grams did it hold?
31. 31.🔍 Which is the odd one out? (a) use the same load (b) use a new load each time (c) guess, do not measure (d) test it only once
32. 32.🧪 The first prototype held 50 g. After the team improved it, the new prototype held 120 g. How many more grams did it hold?
33. 33.🔢 To build and test a straw bridge, what comes right after “read the challenge rules”? (a) sketch three ideas (b) choose and draw one (c) build it with straws (d) load it with coins
34. 34.🔍 Which is the odd one out? (a) repeat each test (b) change only one thing (c) change lots at once (d) record every result
35. 35.True or false: to change lots at once is good testing. (a) True (b) False
36. 36.🔍 Which is the odd one out? (a) repeat each test (b) record every result (c) change only one thing (d) hide a failed test
37. 37.🧪 The first prototype held 200 g. After the team improved it, the new prototype held 250 g. How many more grams did it hold?
38. 38.True or false: to use the same load is good testing. (a) False (b) True
39. 39.🔍 Which is the odd one out? (a) test it only once (b) repeat each test (c) record every result (d) change only one thing
40. 40.True or false: to record every result is good testing. (a) False (b) True

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