Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 535 · 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.🧪 The first prototype held 150 g. After the team improved it, the new prototype held 230 g. How many more grams did it hold?
2. 2.True or false: to repeat each test is good testing. (a) False (b) True
3. 3.🔍 Which is the odd one out? (a) change lots at once (b) record every result (c) use the same load (d) change only one thing
4. 4.🔢 To build and test a straw bridge, what comes right after “read the challenge rules”? (a) build it with straws (b) choose and draw one (c) strengthen the weak part (d) sketch three ideas
5. 5.🧪 Is it good or poor testing to guess, do not measure? (a) poor testing (b) good testing
6. 6.🧪 Is it good or poor testing to change lots at once? (a) good testing (b) poor testing
7. 7.🧪 A paper bridge was tested three times. It held 230 g, 80 g and 170 g. What is the mean (average) load it held, in grams?
8. 8.🧪 Three prototype bridges were tested with the same method. Design A held 250 g, design B held 300 g and design C held 350 g. Which design was the weakest? (a) design B (b) design C (c) design A
9. 9.🧪 Three prototype bridges were tested with the same method. Design A held 160 g, design B held 210 g and design C held 260 g. Which design was the weakest? (a) design B (b) design C (c) design A
10. 10.🔍 Which is the odd one out? (a) guess, do not measure (b) use a new load each time (c) use the same load (d) hide a failed test
11. 11.🧪 Why repeat a test three times? (a) to use more paper (b) the first is wrong (c) to get reliable results (d) it looks busy
12. 12.🧪 What is a prototype? (a) a broken part (b) the final product (c) a sales poster (d) an early test model
13. 13.🧪 The first prototype held 190 g. After the team improved it, the new prototype held 230 g. How many more grams did it hold?
14. 14.🧪 A paper bridge was tested three times. It held 280 g, 190 g and 190 g. What is the mean (average) load it held, in grams?
15. 15.🔢 To build and test a straw bridge, what comes right after “sketch three ideas”? (a) strengthen the weak part (b) load it with coins (c) read the challenge rules (d) choose and draw one
16. 16.🧪 A paper bridge was tested three times. It held 340 g, 220 g and 310 g. What is the mean (average) load it held, in grams?
17. 17.True or false: to repeat each test is poor testing. (a) False (b) True
18. 18.🧪 The first prototype held 110 g. After the team improved it, the new prototype held 160 g. How many more grams did it hold?
19. 19.🧪 Three prototype bridges were tested with the same method. Design A held 180 g, design B held 230 g and design C held 130 g. Which design was the strongest? (a) design B (b) design A (c) design C
20. 20.🧪 Is it good or poor testing to test it only once? (a) good testing (b) poor testing
21. 21.🧪 Is it good or poor testing to skip writing results? (a) poor testing (b) good testing
22. 22.🧪 The first prototype held 160 g. After the team improved it, the new prototype held 280 g. How many more grams did it hold?
23. 23.🧪 A paper bridge was tested three times. It held 340 g, 230 g and 300 g. What is the mean (average) load it held, in grams?
24. 24.🧪 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
25. 25.🧪 The first prototype held 50 g. After the team improved it, the new prototype held 120 g. How many more grams did it hold?
26. 26.🧪 A paper bridge was tested three times. It held 190 g, 120 g and 230 g. What is the mean (average) load it held, in grams?
27. 27.True or false: to use a new load each time is poor testing. (a) True (b) False
28. 28.🧪 A paper bridge was tested three times. It held 270 g, 260 g and 280 g. What is the mean (average) load it held, in grams?
29. 29.True or false: to test it only once is good testing. (a) True (b) False
30. 30.True or false: to measure the same way is good testing. (a) False (b) True
31. 31.🧪 Is it good or poor testing to change only one thing? (a) poor testing (b) good testing
32. 32.True or false: to record every result is good testing. (a) True (b) False
33. 33.🧪 Three prototype bridges were tested with the same method. Design A held 260 g, design B held 210 g and design C held 160 g. Which design was the weakest? (a) design B (b) design A (c) design C
34. 34.True or false: to measure the same way is poor testing. (a) True (b) False
35. 35.🔢 To build and test a straw bridge, what comes right after “load it with coins”? (a) choose and draw one (b) sketch three ideas (c) read the challenge rules (d) strengthen the weak part
36. 36.🔢 To build and test a straw bridge, which is the LAST step? (a) load it with coins (b) read the challenge rules (c) choose and draw one (d) strengthen the weak part
37. 37.🧪 Three prototype bridges were tested with the same method. Design A held 300 g, design B held 400 g and design C held 350 g. Which design was the weakest? (a) design C (b) design B (c) design A
38. 38.🧪 The first prototype held 230 g. After the team improved it, the new prototype held 300 g. How many more grams did it hold?
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.🧪 Is it good or poor testing to repeat each test? (a) poor testing (b) good testing

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