Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 592 · 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 100 g, design B held 200 g and design C held 150 g. Which design was the weakest? (a) design C (b) design B (c) design A
2. 2.🔢 To build and test a straw bridge, which is the LAST step? (a) load it with coins (b) choose and draw one (c) sketch three ideas (d) strengthen the weak part
3. 3.🧪 What is a prototype? (a) the final product (b) an early test model (c) a broken part (d) a sales poster
4. 4.True or false: to repeat each test is poor testing. (a) True (b) False
5. 5.🧪 The first prototype held 190 g. After the team improved it, the new prototype held 370 g. How many more grams did it hold?
6. 6.🧪 Three prototype bridges were tested with the same method. Design A held 170 g, design B held 220 g and design C held 270 g. Which design was the strongest? (a) design B (b) design C (c) design A
7. 7.True or false: to skip writing results is good testing. (a) True (b) False
8. 8.🧪 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
9. 9.🔍 Which is the odd one out? (a) hide a failed test (b) use a new load each time (c) guess, do not measure (d) record every result
10. 10.True or false: to measure the same way is poor testing. (a) True (b) False
11. 11.🔢 To build and test a straw bridge, which comes first: “sketch three ideas” or “strengthen the weak part”? (a) strengthen the weak part (b) sketch three ideas
12. 12.🔢 To build and test a straw bridge, what comes right after “read the challenge rules”? (a) build it with straws (b) sketch three ideas (c) strengthen the weak part (d) choose and draw one
13. 13.🧪 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 weakest? (a) design A (b) design C (c) design B
14. 14.🧪 The first prototype held 290 g. After the team improved it, the new prototype held 430 g. How many more grams did it hold?
15. 15.🧪 A paper bridge was tested three times. It held 320 g, 290 g and 320 g. What is the mean (average) load it held, in grams?
16. 16.🔍 Which is the odd one out? (a) guess, do not measure (b) hide a failed test (c) repeat each test (d) use a new load each time
17. 17.🔍 Which is the odd one out? (a) use a new load each time (b) change only one thing (c) hide a failed test (d) test it only once
18. 18.True or false: to record every result is poor testing. (a) True (b) False
19. 19.🔢 To build and test a straw bridge, what comes right after “build it with straws”? (a) load it with coins (b) sketch three ideas (c) choose and draw one (d) read the challenge rules
20. 20.🧪 The first prototype held 280 g. After the team improved it, the new prototype held 300 g. How many more grams did it hold?
21. 21.🔍 Which is the odd one out? (a) test it only once (b) use the same load (c) change lots at once (d) guess, do not measure
22. 22.True or false: to measure the same way is good testing. (a) False (b) True
23. 23.🧪 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
24. 24.🔍 Which is the odd one out? (a) change lots at once (b) change only one thing (c) record every result (d) measure the same way
25. 25.🧪 The first prototype held 190 g. After the team improved it, the new prototype held 250 g. How many more grams did it hold?
26. 26.🔢 To build and test a straw bridge, which is the FIRST step? (a) read the challenge rules (b) choose and draw one (c) build it with straws (d) strengthen the weak part
27. 27.🧪 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 B (b) design A (c) design C
28. 28.True or false: to use the same load is poor testing. (a) False (b) True
29. 29.🧪 A paper bridge was tested three times. It held 280 g, 190 g and 130 g. What is the mean (average) load it held, in grams?
30. 30.🔍 Which is the odd one out? (a) skip writing results (b) change only one thing (c) repeat each test (d) measure the same way
31. 31.🧪 Is it good or poor testing to measure the same way? (a) good testing (b) poor testing
32. 32.🧪 Is it good or poor testing to skip writing results? (a) good testing (b) poor testing
33. 33.🧪 A paper bridge was tested three times. It held 210 g, 150 g and 180 g. What is the mean (average) load it held, in grams?
34. 34.🧪 The first prototype held 130 g. After the team improved it, the new prototype held 320 g. How many more grams did it hold?
35. 35.🔢 To build and test a straw bridge, what comes right after “load it with coins”? (a) build it with straws (b) read the challenge rules (c) strengthen the weak part (d) sketch three ideas
36. 36.True or false: to hide a failed test is good testing. (a) True (b) False
37. 37.🧪 A paper bridge was tested three times. It held 200 g, 150 g and 250 g. What is the mean (average) load it held, in grams?
38. 38.🧪 Three prototype bridges were tested with the same method. Design A held 200 g, design B held 150 g and design C held 100 g. Which design was the strongest? (a) design B (b) design C (c) design A
39. 39.🧪 Is it good or poor testing to change lots at once? (a) poor testing (b) good testing
40. 40.🧪 Three prototype bridges were tested with the same method. Design A held 370 g, design B held 270 g and design C held 320 g. Which design was the strongest? (a) design A (b) design B (c) design C

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