Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 972 · 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.🔢 To build and test a straw bridge, what comes right after “read the challenge rules”? (a) sketch three ideas (b) load it with coins (c) strengthen the weak part (d) choose and draw one
2. 2.🔍 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
3. 3.🔍 Which is the odd one out? (a) use a new load each time (b) measure the same way (c) hide a failed test (d) skip writing results
4. 4.🧪 In a fair test, how many things do you change at a time? (a) two (b) all of them (c) one (d) none
5. 5.🔢 To build and test a straw bridge, which comes first: “build it with straws” or “read the challenge rules”? (a) read the challenge rules (b) build it with straws
6. 6.🧪 Is it good or poor testing to record every result? (a) good testing (b) poor testing
7. 7.🧪 Is it good or poor testing to repeat each test? (a) good testing (b) poor testing
8. 8.🧪 A paper bridge was tested three times. It held 350 g, 310 g and 330 g. What is the mean (average) load it held, in grams?
9. 9.True or false: to use a new load each time is poor testing. (a) False (b) True
10. 10.🧪 A paper bridge was tested three times. It held 300 g, 190 g and 350 g. What is the mean (average) load it held, in grams?
11. 11.🔍 Which is the odd one out? (a) repeat each test (b) record every result (c) change lots at once (d) change only one thing
12. 12.🔢 To build and test a straw bridge, which is the LAST step? (a) read the challenge rules (b) strengthen the weak part (c) build it with straws (d) load it with coins
13. 13.🧪 Is it good or poor testing to skip writing results? (a) poor testing (b) good testing
14. 14.🧪 Is it good or poor testing to use a new load each time? (a) poor testing (b) good testing
15. 15.True or false: to change only one thing is good testing. (a) True (b) False
16. 16.🧪 A paper bridge was tested three times. It held 310 g, 270 g and 320 g. What is the mean (average) load it held, in grams?
17. 17.🧪 A paper bridge was tested three times. It held 240 g, 190 g and 290 g. What is the mean (average) load it held, in grams?
18. 18.🧪 The first prototype held 130 g. After the team improved it, the new prototype held 160 g. How many more grams did it hold?
19. 19.True or false: to repeat each test is poor testing. (a) True (b) False
20. 20.🧪 Is it good or poor testing to test it only once? (a) good testing (b) poor testing
21. 21.🔢 To build and test a straw bridge, which is the FIRST step? (a) sketch three ideas (b) load it with coins (c) read the challenge rules (d) build it with straws
22. 22.🧪 A paper bridge was tested three times. It held 260 g, 220 g and 240 g. What is the mean (average) load it held, in grams?
23. 23.🧪 A paper bridge was tested three times. It held 340 g, 270 g and 410 g. What is the mean (average) load it held, in grams?
24. 24.🔍 Which is the odd one out? (a) change only one thing (b) record every result (c) repeat each test (d) skip writing results
25. 25.🧪 The first prototype held 180 g. After the team improved it, the new prototype held 310 g. How many more grams did it hold?
26. 26.True or false: to measure the same way is poor testing. (a) True (b) False
27. 27.🧪 A paper bridge was tested three times. It held 260 g, 150 g and 220 g. What is the mean (average) load it held, in grams?
28. 28.🧪 Is it good or poor testing to change lots at once? (a) poor testing (b) good testing
29. 29.🧪 Why do engineers make prototypes? (a) to sell them at once (b) to test ideas cheaply (c) to avoid testing (d) to decorate a room
30. 30.True or false: to change only one thing is poor testing. (a) True (b) False
31. 31.🔢 To build and test a straw bridge, which comes first: “strengthen the weak part” or “sketch three ideas”? (a) strengthen the weak part (b) sketch three ideas
32. 32.🧪 A paper bridge was tested three times. It held 220 g, 170 g and 150 g. What is the mean (average) load it held, in grams?
33. 33.🧪 A paper bridge was tested three times. It held 340 g, 290 g and 270 g. What is the mean (average) load it held, in grams?
34. 34.🧪 A paper bridge was tested three times. It held 230 g, 120 g and 280 g. What is the mean (average) load it held, in grams?
35. 35.🔍 Which is the odd one out? (a) skip writing results (b) test it only once (c) change lots at once (d) change only one thing
36. 36.🧪 The first prototype held 180 g. After the team improved it, the new prototype held 340 g. How many more grams did it hold?
37. 37.🧪 The first prototype held 250 g. After the team improved it, the new prototype held 350 g. How many more grams did it hold?
38. 38.True or false: to repeat each test is good testing. (a) False (b) True
39. 39.🧪 A paper bridge was tested three times. It held 320 g, 220 g and 210 g. What is the mean (average) load it held, in grams?
40. 40.🔍 Which is the odd one out? (a) change only one thing (b) use the same load (c) use a new load each time (d) record every result

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