Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 974 · 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.🔍 Which is the odd one out? (a) skip writing results (b) change lots at once (c) use a new load each time (d) use the same load
2. 2.True or false: to repeat each test is poor testing. (a) True (b) False
3. 3.🔢 To build and test a straw bridge, which is the LAST step? (a) build it with straws (b) choose and draw one (c) read the challenge rules (d) strengthen the weak part
4. 4.True or false: to record every result is good testing. (a) False (b) True
5. 5.🧪 The first prototype held 70 g. After the team improved it, the new prototype held 110 g. How many more grams did it hold?
6. 6.🧪 Three prototype bridges were tested with the same method. Design A held 300 g, design B held 350 g and design C held 400 g. Which design was the weakest? (a) design A (b) design C (c) design B
7. 7.🧪 Is it good or poor testing to hide a failed test? (a) poor testing (b) good testing
8. 8.🔍 Which is the odd one out? (a) record every result (b) change only one thing (c) measure the same way (d) skip writing results
9. 9.🧪 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 weakest? (a) design C (b) design B (c) design A
10. 10.🧪 The first prototype held 140 g. After the team improved it, the new prototype held 290 g. How many more grams did it hold?
11. 11.🔢 To build and test a straw bridge, which comes first: “choose and draw one” or “strengthen the weak part”? (a) strengthen the weak part (b) choose and draw one
12. 12.🧪 A paper bridge was tested three times. It held 390 g, 230 g and 250 g. What is the mean (average) load it held, in grams?
13. 13.🔢 To build and test a straw bridge, which comes first: “load it with coins” or “build it with straws”? (a) build it with straws (b) load it with coins
14. 14.🧪 Is it good or poor testing to test it only once? (a) poor testing (b) good testing
15. 15.🧪 In a fair test, how many things do you change at a time? (a) all of them (b) two (c) none (d) one
16. 16.True or false: to change only one thing is good testing. (a) True (b) False
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.🧪 What is a prototype? (a) a broken part (b) an early test model (c) a sales poster (d) the final product
19. 19.True or false: to measure the same way is good testing. (a) True (b) False
20. 20.🔢 To build and test a straw bridge, which is the FIRST step? (a) choose and draw one (b) sketch three ideas (c) build it with straws (d) read the challenge rules
21. 21.🧪 The first prototype held 190 g. After the team improved it, the new prototype held 250 g. How many more grams did it hold?
22. 22.🧪 Is it good or poor testing to measure the same way? (a) poor testing (b) good testing
23. 23.🧪 The first prototype held 120 g. After the team improved it, the new prototype held 210 g. How many more grams did it hold?
24. 24.True or false: to use the same load is good testing. (a) True (b) False
25. 25.🧪 A paper bridge was tested three times. It held 360 g, 230 g and 220 g. What is the mean (average) load it held, in grams?
26. 26.🧪 Three prototype bridges were tested with the same method. Design A held 170 g, design B held 120 g and design C held 220 g. Which design was the weakest? (a) design C (b) design B (c) design A
27. 27.🧪 Is it good or poor testing to change only one thing? (a) good testing (b) poor testing
28. 28.🔍 Which is the odd one out? (a) guess, do not measure (b) repeat each test (c) hide a failed test (d) test it only once
29. 29.🔢 To build and test a straw bridge, what comes right after “read the challenge rules”? (a) load it with coins (b) choose and draw one (c) sketch three ideas (d) strengthen the weak part
30. 30.🔍 Which is the odd one out? (a) repeat each test (b) measure the same way (c) use the same load (d) guess, do not measure
31. 31.🔍 Which is the odd one out? (a) measure the same way (b) hide a failed test (c) skip writing results (d) change lots at once
32. 32.True or false: to record every result is poor testing. (a) True (b) False
33. 33.🔍 Which is the odd one out? (a) change only one thing (b) record every result (c) repeat each test (d) test it only once
34. 34.🧪 Is it good or poor testing to record every result? (a) poor testing (b) good testing
35. 35.🧪 Is it good or poor testing to use a new load each time? (a) good testing (b) poor testing
36. 36.True or false: to measure the same way is poor testing. (a) True (b) False
37. 37.🔢 To build and test a straw bridge, which comes first: “sketch three ideas” or “strengthen the weak part”? (a) strengthen the weak part (b) sketch three ideas
38. 38.🧪 Is it good or poor testing to repeat each test? (a) poor testing (b) good testing
39. 39.🔢 To build and test a straw bridge, what comes right after “load it with coins”? (a) sketch three ideas (b) strengthen the weak part (c) read the challenge rules (d) choose and draw one
40. 40.🧪 Why do engineers make prototypes? (a) to decorate a room (b) to test ideas cheaply (c) to sell them at once (d) to avoid testing

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