Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 858 · 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.True or false: to use a new load each time is poor testing. (a) False (b) True
2. 2.🔍 Which is the odd one out? (a) use a new load each time (b) change lots at once (c) skip writing results (d) use the same load
3. 3.🧪 The first prototype held 170 g. After the team improved it, the new prototype held 180 g. How many more grams did it hold?
4. 4.🧪 A paper bridge was tested three times. It held 300 g, 180 g and 270 g. What is the mean (average) load it held, in grams?
5. 5.🧪 What is a prototype? (a) a broken part (b) the final product (c) a sales poster (d) an early test model
6. 6.🧪 The first prototype held 60 g. After the team improved it, the new prototype held 190 g. How many more grams did it hold?
7. 7.True or false: to record every result is good testing. (a) False (b) True
8. 8.🧪 A paper bridge was tested three times. It held 270 g, 140 g and 310 g. What is the mean (average) load it held, in grams?
9. 9.🧪 Is it good or poor testing to change lots at once? (a) poor testing (b) good testing
10. 10.🧪 The first prototype held 190 g. After the team improved it, the new prototype held 210 g. How many more grams did it hold?
11. 11.🧪 A paper bridge was tested three times. It held 230 g, 120 g and 160 g. What is the mean (average) load it held, in grams?
12. 12.🧪 Three prototype bridges were tested with the same method. Design A held 220 g, design B held 120 g and design C held 170 g. Which design was the strongest? (a) design B (b) design A (c) design C
13. 13.🧪 Is it good or poor testing to use a new load each time? (a) poor testing (b) good testing
14. 14.🔍 Which is the odd one out? (a) record every result (b) use the same load (c) guess, do not measure (d) measure the same way
15. 15.🧪 The first prototype held 140 g. After the team improved it, the new prototype held 210 g. How many more grams did it hold?
16. 16.🧪 Is it good or poor testing to change only one thing? (a) poor testing (b) good testing
17. 17.🔍 Which is the odd one out? (a) use the same load (b) measure the same way (c) repeat each test (d) change lots at once
18. 18.🧪 A paper bridge was tested three times. It held 440 g, 320 g and 290 g. What is the mean (average) load it held, in grams?
19. 19.True or false: to skip writing results is good testing. (a) True (b) False
20. 20.🧪 Three prototype bridges were tested with the same method. Design A held 340 g, design B held 390 g and design C held 290 g. Which design was the strongest? (a) design A (b) design C (c) design B
21. 21.🧪 Is it good or poor testing to guess, do not measure? (a) good testing (b) poor testing
22. 22.🧪 Three prototype bridges were tested with the same method. Design A held 140 g, design B held 190 g and design C held 240 g. Which design was the weakest? (a) design C (b) design A (c) design B
23. 23.🔍 Which is the odd one out? (a) record every result (b) use a new load each time (c) repeat each test (d) measure the same way
24. 24.True or false: to use the same load is good testing. (a) True (b) False
25. 25.True or false: to measure the same way is poor testing. (a) False (b) True
26. 26.🔢 To build and test a straw bridge, what comes right after “load it with coins”? (a) choose and draw one (b) strengthen the weak part (c) sketch three ideas (d) build it with straws
27. 27.🧪 Is it good or poor testing to measure the same way? (a) poor testing (b) good testing
28. 28.True or false: to repeat each test is poor testing. (a) False (b) True
29. 29.🔢 To build and test a straw bridge, which is the FIRST step? (a) strengthen the weak part (b) read the challenge rules (c) build it with straws (d) sketch three ideas
30. 30.True or false: to test it only once is poor testing. (a) False (b) True
31. 31.🧪 The first prototype held 110 g. After the team improved it, the new prototype held 210 g. How many more grams did it hold?
32. 32.True or false: to measure the same way is good testing. (a) True (b) False
33. 33.🧪 Is it good or poor testing to test it only once? (a) good testing (b) poor testing
34. 34.🧪 In a fair test, how many things do you change at a time? (a) none (b) one (c) all of them (d) two
35. 35.🧪 Three prototype bridges were tested with the same method. Design A held 350 g, design B held 400 g and design C held 300 g. Which design was the weakest? (a) design A (b) design C (c) design B
36. 36.🔍 Which is the odd one out? (a) record every result (b) use a new load each time (c) skip writing results (d) test it only once
37. 37.🧪 Three prototype bridges were tested with the same method. Design A held 210 g, design B held 160 g and design C held 260 g. Which design was the weakest? (a) design C (b) design B (c) design A
38. 38.🧪 A paper bridge was tested three times. It held 320 g, 260 g and 320 g. What is the mean (average) load it held, in grams?
39. 39.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “choose and draw one”? (a) choose and draw one (b) read the challenge rules
40. 40.True or false: to repeat each test is good testing. (a) False (b) True

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