Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 459 · 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 “load it with coins”? (a) choose and draw one (b) read the challenge rules (c) strengthen the weak part (d) sketch three ideas
2. 2.🧪 Is it good or poor testing to use the same load? (a) good testing (b) poor testing
3. 3.🧪 Why do engineers make prototypes? (a) to decorate a room (b) to sell them at once (c) to avoid testing (d) to test ideas cheaply
4. 4.🧪 Is it good or poor testing to measure the same way? (a) poor testing (b) good testing
5. 5.🧪 Three prototype bridges were tested with the same method. Design A held 240 g, design B held 190 g and design C held 140 g. Which design was the weakest? (a) design A (b) design B (c) design C
6. 6.🔢 To build and test a straw bridge, which comes first: “sketch three ideas” or “read the challenge rules”? (a) sketch three ideas (b) read the challenge rules
7. 7.🧪 The first prototype held 150 g. After the team improved it, the new prototype held 220 g. How many more grams did it hold?
8. 8.🧪 A paper bridge was tested three times. It held 290 g, 200 g and 290 g. What is the mean (average) load it held, in grams?
9. 9.🧪 Is it good or poor testing to skip writing results? (a) good testing (b) poor testing
10. 10.🧪 Is it good or poor testing to repeat each test? (a) good testing (b) poor testing
11. 11.🔍 Which is the odd one out? (a) skip writing results (b) change lots at once (c) guess, do not measure (d) repeat each test
12. 12.🔢 To build and test a straw bridge, which is the LAST step? (a) load it with coins (b) choose and draw one (c) strengthen the weak part (d) sketch three ideas
13. 13.🔍 Which is the odd one out? (a) change only one thing (b) measure the same way (c) use the same load (d) test it only once
14. 14.🧪 A paper bridge was tested three times. It held 290 g, 150 g and 250 g. What is the mean (average) load it held, in grams?
15. 15.🧪 Three prototype bridges were tested with the same method. Design A held 270 g, design B held 320 g and design C held 370 g. Which design was the weakest? (a) design A (b) design C (c) design B
16. 16.🧪 The first prototype held 200 g. After the team improved it, the new prototype held 240 g. How many more grams did it hold?
17. 17.True or false: to repeat each test is good testing. (a) True (b) False
18. 18.🔢 To build and test a straw bridge, what comes right after “choose and draw one”? (a) load it with coins (b) read the challenge rules (c) build it with straws (d) sketch three ideas
19. 19.🧪 Three prototype bridges were tested with the same method. Design A held 230 g, design B held 330 g and design C held 280 g. Which design was the strongest? (a) design B (b) design C (c) design A
20. 20.True or false: to use the same load is good testing. (a) False (b) True
21. 21.True or false: to measure the same way is good testing. (a) True (b) False
22. 22.🧪 A paper bridge was tested three times. It held 230 g, 110 g and 260 g. What is the mean (average) load it held, in grams?
23. 23.🔍 Which is the odd one out? (a) test it only once (b) change lots at once (c) measure the same way (d) use a new load each time
24. 24.🧪 A paper bridge was tested three times. It held 340 g, 320 g and 330 g. What is the mean (average) load it held, in grams?
25. 25.🔢 To build and test a straw bridge, which comes first: “choose and draw one” or “read the challenge rules”? (a) read the challenge rules (b) choose and draw one
26. 26.🧪 A paper bridge was tested three times. It held 380 g, 300 g and 250 g. What is the mean (average) load it held, in grams?
27. 27.🧪 Is it good or poor testing to test it only once? (a) good testing (b) poor testing
28. 28.True or false: to skip writing results is good testing. (a) True (b) False
29. 29.🧪 Is it good or poor testing to use a new load each time? (a) poor testing (b) good testing
30. 30.🧪 A paper bridge was tested three times. It held 340 g, 230 g and 360 g. What is the mean (average) load it held, in grams?
31. 31.True or false: to test it only once is good testing. (a) True (b) False
32. 32.True or false: to repeat each test is poor testing. (a) True (b) False
33. 33.🧪 The first prototype held 190 g. After the team improved it, the new prototype held 280 g. How many more grams did it hold?
34. 34.🔢 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) strengthen the weak part (d) choose and draw one
35. 35.🧪 Three prototype bridges were tested with the same method. Design A held 210 g, design B held 310 g and design C held 260 g. Which design was the strongest? (a) design C (b) design B (c) design A
36. 36.True or false: to record every result is poor testing. (a) True (b) False
37. 37.🧪 A paper bridge was tested three times. It held 260 g, 160 g and 150 g. What is the mean (average) load it held, in grams?
38. 38.🧪 A paper bridge was tested three times. It held 180 g, 110 g and 220 g. What is the mean (average) load it held, in grams?
39. 39.🧪 In a fair test, how many things do you change at a time? (a) two (b) all of them (c) none (d) one
40. 40.🔢 To build and test a straw bridge, which comes first: “build it with straws” or “load it with coins”? (a) load it with coins (b) build it with straws

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