Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 393 · 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.🔍 Which is the odd one out? (a) change only one thing (b) use the same load (c) record every result (d) skip writing results
2. 2.True or false: to repeat each test is poor testing. (a) True (b) False
3. 3.🧪 A paper bridge was tested three times. It held 290 g, 180 g and 250 g. What is the mean (average) load it held, in grams?
4. 4.🧪 Why do engineers make prototypes? (a) to decorate a room (b) to avoid testing (c) to sell them at once (d) to test ideas cheaply
5. 5.🔍 Which is the odd one out? (a) record every result (b) repeat each test (c) measure the same way (d) test it only once
6. 6.🔢 To build and test a straw bridge, what comes right after “load it with coins”? (a) read the challenge rules (b) build it with straws (c) strengthen the weak part (d) sketch three ideas
7. 7.True or false: to skip writing results is poor testing. (a) False (b) True
8. 8.🧪 Is it good or poor testing to measure the same way? (a) good testing (b) poor testing
9. 9.True or false: to guess, do not measure is good testing. (a) False (b) True
10. 10.🧪 The first prototype held 60 g. After the team improved it, the new prototype held 160 g. How many more grams did it hold?
11. 11.🧪 Is it good or poor testing to skip writing results? (a) good testing (b) poor testing
12. 12.🧪 The first prototype held 130 g. After the team improved it, the new prototype held 190 g. How many more grams did it hold?
13. 13.🧪 The first prototype held 220 g. After the team improved it, the new prototype held 390 g. How many more grams did it hold?
14. 14.🧪 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?
15. 15.🧪 Three prototype bridges were tested with the same method. Design A held 180 g, design B held 280 g and design C held 230 g. Which design was the weakest? (a) design C (b) design A (c) design B
16. 16.🔍 Which is the odd one out? (a) repeat each test (b) use a new load each time (c) change lots at once (d) skip writing results
17. 17.🧪 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 weakest? (a) design A (b) design B (c) design C
18. 18.True or false: to change lots at once is good testing. (a) False (b) True
19. 19.🔢 To build and test a straw bridge, what comes right after “read the challenge rules”? (a) build it with straws (b) choose and draw one (c) load it with coins (d) sketch three ideas
20. 20.🧪 A paper bridge was tested three times. It held 320 g, 260 g and 200 g. What is the mean (average) load it held, in grams?
21. 21.🧪 Three prototype bridges were tested with the same method. Design A held 380 g, design B held 330 g and design C held 280 g. Which design was the weakest? (a) design C (b) design B (c) design A
22. 22.🔍 Which is the odd one out? (a) measure the same way (b) guess, do not measure (c) skip writing results (d) use a new load each time
23. 23.True or false: to use the same load is poor testing. (a) True (b) False
24. 24.🔢 To build and test a straw bridge, which is the LAST step? (a) choose and draw one (b) strengthen the weak part (c) sketch three ideas (d) build it with straws
25. 25.🔍 Which is the odd one out? (a) measure the same way (b) use a new load each time (c) repeat each test (d) use the same load
26. 26.🧪 Is it good or poor testing to repeat each test? (a) good testing (b) poor testing
27. 27.🔢 To build and test a straw bridge, which is the FIRST step? (a) strengthen the weak part (b) read the challenge rules (c) choose and draw one (d) sketch three ideas
28. 28.🧪 A paper bridge was tested three times. It held 280 g, 260 g and 270 g. What is the mean (average) load it held, in grams?
29. 29.True or false: to guess, do not measure is poor testing. (a) True (b) False
30. 30.🧪 What is a prototype? (a) a sales poster (b) an early test model (c) a broken part (d) the final product
31. 31.🧪 Three prototype bridges were tested with the same method. Design A held 270 g, design B held 170 g and design C held 220 g. Which design was the weakest? (a) design B (b) design C (c) design A
32. 32.True or false: to record every result is poor testing. (a) False (b) True
33. 33.🧪 The first prototype held 60 g. After the team improved it, the new prototype held 230 g. How many more grams did it hold?
34. 34.🔍 Which is the odd one out? (a) change lots at once (b) record every result (c) measure the same way (d) repeat each test
35. 35.🧪 Three prototype bridges were tested with the same method. Design A held 400 g, design B held 300 g and design C held 350 g. Which design was the strongest? (a) design C (b) design B (c) design A
36. 36.🧪 Three prototype bridges were tested with the same method. Design A held 220 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
37. 37.True or false: to test it only once is good testing. (a) False (b) True
38. 38.🔢 To build and test a straw bridge, which comes first: “load it with coins” or “choose and draw one”? (a) choose and draw one (b) load it with coins
39. 39.🔍 Which is the odd one out? (a) change only one thing (b) skip writing results (c) test it only once (d) hide a failed test
40. 40.True or false: to test it only once is poor testing. (a) True (b) False

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