Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 942 · 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 260 g, design B held 210 g and design C held 160 g. Which design was the strongest? (a) design C (b) design A (c) design B
2. 2.🧪 Is it good or poor testing to guess, do not measure? (a) good testing (b) poor testing
3. 3.🧪 Is it good or poor testing to skip writing results? (a) poor testing (b) good testing
4. 4.🧪 Three prototype bridges were tested with the same method. Design A held 300 g, design B held 250 g and design C held 350 g. Which design was the strongest? (a) design A (b) design B (c) design C
5. 5.🔢 To build and test a straw bridge, what comes right after “sketch three ideas”? (a) choose and draw one (b) build it with straws (c) load it with coins (d) read the challenge rules
6. 6.🧪 The first prototype held 170 g. After the team improved it, the new prototype held 280 g. How many more grams did it hold?
7. 7.🧪 Three prototype bridges were tested with the same method. Design A held 230 g, design B held 180 g and design C held 130 g. Which design was the weakest? (a) design A (b) design B (c) design C
8. 8.🧪 The first prototype held 140 g. After the team improved it, the new prototype held 310 g. How many more grams did it hold?
9. 9.🧪 What is a prototype? (a) an early test model (b) a broken part (c) the final product (d) a sales poster
10. 10.🧪 Is it good or poor testing to change only one thing? (a) good testing (b) poor testing
11. 11.🧪 The first prototype held 260 g. After the team improved it, the new prototype held 270 g. How many more grams did it hold?
12. 12.🧪 In a fair test, how many things do you change at a time? (a) two (b) none (c) one (d) all of them
13. 13.🔢 To build and test a straw bridge, what comes right after “load it with coins”? (a) choose and draw one (b) build it with straws (c) strengthen the weak part (d) sketch three ideas
14. 14.🧪 Why do engineers make prototypes? (a) to avoid testing (b) to decorate a room (c) to test ideas cheaply (d) to sell them at once
15. 15.🔍 Which is the odd one out? (a) hide a failed test (b) use a new load each time (c) test it only once (d) change only one thing
16. 16.True or false: to use the same load is good testing. (a) False (b) True
17. 17.🧪 Is it good or poor testing to repeat each test? (a) poor testing (b) good testing
18. 18.🧪 The first prototype held 230 g. After the team improved it, the new prototype held 310 g. How many more grams did it hold?
19. 19.🧪 A paper bridge was tested three times. It held 280 g, 170 g and 270 g. What is the mean (average) load it held, in grams?
20. 20.🔢 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
21. 21.True or false: to repeat each test is poor testing. (a) True (b) False
22. 22.🧪 The first prototype held 240 g. After the team improved it, the new prototype held 370 g. How many more grams did it hold?
23. 23.🧪 Three prototype bridges were tested with the same method. Design A held 390 g, design B held 340 g and design C held 290 g. Which design was the weakest? (a) design A (b) design C (c) design B
24. 24.🔢 To build and test a straw bridge, what comes right after “choose and draw one”? (a) read the challenge rules (b) strengthen the weak part (c) load it with coins (d) build it with straws
25. 25.🧪 Three prototype bridges were tested with the same method. Design A held 290 g, design B held 340 g and design C held 390 g. Which design was the strongest? (a) design C (b) design B (c) design A
26. 26.🧪 Why repeat a test three times? (a) to use more paper (b) to get reliable results (c) it looks busy (d) the first is wrong
27. 27.🔍 Which is the odd one out? (a) use the same load (b) skip writing results (c) guess, do not measure (d) change lots at once
28. 28.🔍 Which is the odd one out? (a) use the same load (b) change only one thing (c) measure the same way (d) skip writing results
29. 29.True or false: to record every result is poor testing. (a) False (b) True
30. 30.🔍 Which is the odd one out? (a) use the same load (b) record every result (c) change lots at once (d) repeat each test
31. 31.🔍 Which is the odd one out? (a) use a new load each time (b) change only one thing (c) use the same load (d) record every result
32. 32.🧪 Three prototype bridges were tested with the same method. Design A held 290 g, design B held 340 g and design C held 390 g. Which design was the weakest? (a) design A (b) design C (c) design B
33. 33.🔍 Which is the odd one out? (a) repeat each test (b) use a new load each time (c) skip writing results (d) change lots at once
34. 34.🧪 A paper bridge was tested three times. It held 180 g, 150 g and 180 g. What is the mean (average) load it held, in grams?
35. 35.🧪 Is it good or poor testing to record every result? (a) good testing (b) poor testing
36. 36.True or false: to change lots at once is poor testing. (a) False (b) True
37. 37.🧪 The first prototype held 150 g. After the team improved it, the new prototype held 180 g. How many more grams did it hold?
38. 38.🔍 Which is the odd one out? (a) hide a failed test (b) repeat each test (c) change only one thing (d) use the same load
39. 39.🧪 Is it good or poor testing to change lots at once? (a) poor testing (b) good testing
40. 40.🧪 The first prototype held 210 g. After the team improved it, the new prototype held 390 g. How many more grams did it hold?

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