Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 967 · 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.🧪 Is it good or poor testing to measure the same way? (a) good testing (b) poor testing
2. 2.🧪 Is it good or poor testing to hide a failed test? (a) good testing (b) poor testing
3. 3.🧪 Is it good or poor testing to change lots at once? (a) poor testing (b) good testing
4. 4.🧪 Three prototype bridges were tested with the same method. Design A held 230 g, design B held 280 g and design C held 180 g. Which design was the strongest? (a) design A (b) design C (c) design B
5. 5.🧪 What is a prototype? (a) a broken part (b) the final product (c) an early test model (d) a sales poster
6. 6.🔍 Which is the odd one out? (a) repeat each test (b) skip writing results (c) hide a failed test (d) guess, do not measure
7. 7.🧪 Three prototype bridges were tested with the same method. Design A held 100 g, design B held 150 g and design C held 200 g. Which design was the strongest? (a) design C (b) design A (c) design B
8. 8.🧪 A paper bridge was tested three times. It held 330 g, 230 g and 310 g. What is the mean (average) load it held, in grams?
9. 9.🧪 Three prototype bridges were tested with the same method. Design A held 230 g, design B held 130 g and design C held 180 g. Which design was the weakest? (a) design A (b) design C (c) design B
10. 10.True or false: to change only one thing is poor testing. (a) True (b) False
11. 11.🔍 Which is the odd one out? (a) use the same load (b) change lots at once (c) record every result (d) change only one thing
12. 12.🧪 A paper bridge was tested three times. It held 220 g, 150 g and 140 g. What is the mean (average) load it held, in grams?
13. 13.🧪 Is it good or poor testing to repeat each test? (a) good testing (b) poor testing
14. 14.True or false: to change only one thing is good testing. (a) True (b) False
15. 15.True or false: to use a new load each time is poor testing. (a) False (b) True
16. 16.🧪 Why repeat a test three times? (a) it looks busy (b) to use more paper (c) the first is wrong (d) to get reliable results
17. 17.🧪 Is it good or poor testing to change only one thing? (a) good testing (b) poor testing
18. 18.🔢 To build and test a straw bridge, which comes first: “strengthen the weak part” or “load it with coins”? (a) strengthen the weak part (b) load it with coins
19. 19.🧪 In a fair test, how many things do you change at a time? (a) two (b) one (c) none (d) all of them
20. 20.🔍 Which is the odd one out? (a) record every result (b) skip writing results (c) measure the same way (d) use the same load
21. 21.🔢 To build and test a straw bridge, what comes right after “choose and draw one”? (a) load it with coins (b) strengthen the weak part (c) read the challenge rules (d) build it with straws
22. 22.🔍 Which is the odd one out? (a) use a new load each time (b) change lots at once (c) record every result (d) test it only once
23. 23.True or false: to guess, do not measure is poor testing. (a) True (b) False
24. 24.🔢 To build and test a straw bridge, which is the FIRST step? (a) build it with straws (b) load it with coins (c) read the challenge rules (d) choose and draw one
25. 25.🔍 Which is the odd one out? (a) record every result (b) test it only once (c) use the same load (d) measure the same way
26. 26.True or false: to use the same load is poor testing. (a) True (b) False
27. 27.True or false: to measure the same way is poor testing. (a) False (b) True
28. 28.🧪 A paper bridge was tested three times. It held 350 g, 280 g and 300 g. What is the mean (average) load it held, in grams?
29. 29.🧪 The first prototype held 300 g. After the team improved it, the new prototype held 410 g. How many more grams did it hold?
30. 30.🧪 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 A (b) design C (c) design B
31. 31.True or false: to test it only once is good testing. (a) False (b) True
32. 32.🧪 A paper bridge was tested three times. It held 270 g, 200 g and 280 g. What is the mean (average) load it held, in grams?
33. 33.🧪 A paper bridge was tested three times. It held 260 g, 120 g and 100 g. What is the mean (average) load it held, in grams?
34. 34.🧪 Why do engineers make prototypes? (a) to sell them at once (b) to avoid testing (c) to decorate a room (d) to test ideas cheaply
35. 35.🧪 Is it good or poor testing to test it only once? (a) poor testing (b) good testing
36. 36.🧪 A paper bridge was tested three times. It held 300 g, 270 g and 330 g. What is the mean (average) load it held, in grams?
37. 37.True or false: to repeat each test is good testing. (a) False (b) True
38. 38.🔢 To build and test a straw bridge, what comes right after “sketch three ideas”? (a) choose and draw one (b) strengthen the weak part (c) read the challenge rules (d) load it with coins
39. 39.🧪 The first prototype held 180 g. After the team improved it, the new prototype held 220 g. How many more grams did it hold?
40. 40.🧪 Is it good or poor testing to guess, do not measure? (a) poor testing (b) good testing

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