Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 962 · 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.🧪 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 strongest? (a) design B (b) design A (c) design C
2. 2.🧪 In a fair test, how many things do you change at a time? (a) one (b) none (c) two (d) all of them
3. 3.🧪 Is it good or poor testing to measure the same way? (a) good testing (b) poor testing
4. 4.🔍 Which is the odd one out? (a) use a new load each time (b) repeat each test (c) measure the same way (d) use the same load
5. 5.🧪 Is it good or poor testing to change lots at once? (a) good testing (b) poor testing
6. 6.🧪 The first prototype held 280 g. After the team improved it, the new prototype held 340 g. How many more grams did it hold?
7. 7.🧪 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 weakest? (a) design C (b) design B (c) design A
8. 8.🔢 To build and test a straw bridge, what comes right after “read the challenge rules”? (a) sketch three ideas (b) choose and draw one (c) strengthen the weak part (d) build it with straws
9. 9.🧪 A paper bridge was tested three times. It held 340 g, 220 g and 220 g. What is the mean (average) load it held, in grams?
10. 10.True or false: to repeat each test is good testing. (a) False (b) True
11. 11.🔍 Which is the odd one out? (a) change lots at once (b) repeat each test (c) skip writing results (d) use a new load each time
12. 12.🔍 Which is the odd one out? (a) test it only once (b) measure the same way (c) record every result (d) change only one thing
13. 13.True or false: to use the same load is poor testing. (a) True (b) False
14. 14.🔍 Which is the odd one out? (a) record every result (b) change lots at once (c) change only one thing (d) repeat each test
15. 15.🔢 To build and test a straw bridge, which comes first: “load it with coins” or “read the challenge rules”? (a) read the challenge rules (b) load it with coins
16. 16.🧪 Is it good or poor testing to use the same load? (a) poor testing (b) good testing
17. 17.🧪 A paper bridge was tested three times. It held 190 g, 190 g and 190 g. What is the mean (average) load it held, in grams?
18. 18.True or false: to measure the same way is poor testing. (a) True (b) False
19. 19.🧪 Three prototype bridges were tested with the same method. Design A held 190 g, design B held 290 g and design C held 240 g. Which design was the weakest? (a) design B (b) design A (c) design C
20. 20.🧪 Three prototype bridges were tested with the same method. Design A held 240 g, design B held 290 g and design C held 190 g. Which design was the weakest? (a) design C (b) design B (c) design A
21. 21.🔢 To build and test a straw bridge, what comes right after “choose and draw one”? (a) sketch three ideas (b) strengthen the weak part (c) load it with coins (d) build it with straws
22. 22.🔢 To build and test a straw bridge, which is the FIRST step? (a) load it with coins (b) choose and draw one (c) strengthen the weak part (d) read the challenge rules
23. 23.🧪 The first prototype held 150 g. After the team improved it, the new prototype held 180 g. How many more grams did it hold?
24. 24.🧪 Is it good or poor testing to repeat each test? (a) good testing (b) poor testing
25. 25.True or false: to test it only once is poor testing. (a) False (b) True
26. 26.🧪 Why do engineers make prototypes? (a) to sell them at once (b) to decorate a room (c) to avoid testing (d) to test ideas cheaply
27. 27.🔢 To build and test a straw bridge, what comes right after “build it with straws”? (a) read the challenge rules (b) strengthen the weak part (c) load it with coins (d) sketch three ideas
28. 28.🧪 A paper bridge was tested three times. It held 360 g, 180 g and 270 g. What is the mean (average) load it held, in grams?
29. 29.🧪 The first prototype held 180 g. After the team improved it, the new prototype held 200 g. How many more grams did it hold?
30. 30.🔢 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) build it with straws (d) sketch three ideas
31. 31.🔢 To build and test a straw bridge, which comes first: “sketch three ideas” or “load it with coins”? (a) sketch three ideas (b) load it with coins
32. 32.🔍 Which is the odd one out? (a) hide a failed test (b) guess, do not measure (c) test it only once (d) record every result
33. 33.🧪 A paper bridge was tested three times. It held 190 g, 150 g and 110 g. What is the mean (average) load it held, in grams?
34. 34.🧪 Three prototype bridges were tested with the same method. Design A held 240 g, design B held 190 g and design C held 290 g. Which design was the strongest? (a) design C (b) design B (c) design A
35. 35.🧪 A paper bridge was tested three times. It held 330 g, 310 g and 320 g. What is the mean (average) load it held, in grams?
36. 36.🧪 Why repeat a test three times? (a) it looks busy (b) to use more paper (c) to get reliable results (d) the first is wrong
37. 37.🧪 Is it good or poor testing to skip writing results? (a) good testing (b) poor testing
38. 38.🧪 Is it good or poor testing to record every result? (a) poor testing (b) good testing
39. 39.True or false: to change lots at once is good testing. (a) False (b) True
40. 40.🧪 Is it good or poor testing to hide a failed test? (a) poor testing (b) good testing

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