Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 963 · 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 280 g, design B held 180 g and design C held 230 g. Which design was the weakest? (a) design A (b) design B (c) design C
2. 2.🧪 Is it good or poor testing to record every result? (a) poor testing (b) good testing
3. 3.🧪 Why repeat a test three times? (a) to use more paper (b) the first is wrong (c) it looks busy (d) to get reliable results
4. 4.🔍 Which is the odd one out? (a) record every result (b) repeat each test (c) change only one thing (d) guess, do not measure
5. 5.🧪 A paper bridge was tested three times. It held 200 g, 110 g and 290 g. What is the mean (average) load it held, in grams?
6. 6.True or false: to change lots at once is poor testing. (a) False (b) True
7. 7.🧪 The first prototype held 270 g. After the team improved it, the new prototype held 330 g. How many more grams did it hold?
8. 8.🔍 Which is the odd one out? (a) use a new load each time (b) guess, do not measure (c) measure the same way (d) change lots at once
9. 9.🧪 In a fair test, how many things do you change at a time? (a) all of them (b) none (c) two (d) one
10. 10.🧪 Three prototype bridges were tested with the same method. Design A held 120 g, design B held 170 g and design C held 220 g. Which design was the weakest? (a) design B (b) design A (c) design C
11. 11.🧪 Is it good or poor testing to guess, do not measure? (a) good testing (b) poor testing
12. 12.🧪 Is it good or poor testing to measure the same way? (a) good testing (b) poor testing
13. 13.🧪 A paper bridge was tested three times. It held 180 g, 120 g and 240 g. What is the mean (average) load it held, in grams?
14. 14.🔢 To build and test a straw bridge, which comes first: “build it with straws” or “strengthen the weak part”? (a) strengthen the weak part (b) build it with straws
15. 15.🧪 Three prototype bridges were tested with the same method. Design A held 280 g, design B held 330 g and design C held 380 g. Which design was the strongest? (a) design C (b) design A (c) design B
16. 16.🧪 Is it good or poor testing to change only one thing? (a) good testing (b) poor testing
17. 17.True or false: to measure the same way is poor testing. (a) False (b) True
18. 18.🧪 Three prototype bridges were tested with the same method. Design A held 170 g, design B held 220 g and design C held 120 g. Which design was the weakest? (a) design B (b) design C (c) design A
19. 19.🧪 Three prototype bridges were tested with the same method. Design A held 320 g, design B held 220 g and design C held 270 g. Which design was the weakest? (a) design C (b) design B (c) design A
20. 20.🔢 To build and test a straw bridge, what comes right after “choose and draw one”? (a) sketch three ideas (b) build it with straws (c) strengthen the weak part (d) read the challenge rules
21. 21.🔍 Which is the odd one out? (a) skip writing results (b) use a new load each time (c) repeat each test (d) guess, do not measure
22. 22.🔢 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) load it with coins (d) build it with straws
23. 23.🧪 Three prototype bridges were tested with the same method. Design A held 220 g, design B held 270 g and design C held 170 g. Which design was the strongest? (a) design A (b) design C (c) design B
24. 24.🧪 Is it good or poor testing to use the same load? (a) poor testing (b) good testing
25. 25.🧪 The first prototype held 80 g. After the team improved it, the new prototype held 190 g. How many more grams did it hold?
26. 26.🧪 Is it good or poor testing to use a new load each time? (a) poor testing (b) good testing
27. 27.🔍 Which is the odd one out? (a) change only one thing (b) use a new load each time (c) measure the same way (d) use the same load
28. 28.🧪 Is it good or poor testing to hide a failed test? (a) poor testing (b) good testing
29. 29.🧪 The first prototype held 50 g. After the team improved it, the new prototype held 170 g. How many more grams did it hold?
30. 30.True or false: to record every result is poor testing. (a) True (b) False
31. 31.🔢 To build and test a straw bridge, which comes first: “choose and draw one” or “load it with coins”? (a) choose and draw one (b) load it with coins
32. 32.True or false: to use the same load is poor testing. (a) False (b) True
33. 33.🔢 To build and test a straw bridge, what comes right after “sketch three ideas”? (a) build it with straws (b) strengthen the weak part (c) choose and draw one (d) read the challenge rules
34. 34.🧪 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 strongest? (a) design B (b) design A (c) design C
35. 35.🧪 The first prototype held 150 g. After the team improved it, the new prototype held 350 g. How many more grams did it hold?
36. 36.🧪 A paper bridge was tested three times. It held 370 g, 200 g and 300 g. What is the mean (average) load it held, in grams?
37. 37.🧪 What is a prototype? (a) an early test model (b) a sales poster (c) the final product (d) a broken part
38. 38.True or false: to guess, do not measure is poor testing. (a) False (b) True
39. 39.🔢 To build and test a straw bridge, which is the FIRST step? (a) build it with straws (b) sketch three ideas (c) read the challenge rules (d) strengthen the weak part
40. 40.True or false: to hide a failed test is poor testing. (a) False (b) True

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