Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 871 · 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 use a new load each time? (a) good testing (b) poor testing
2. 2.🧪 Is it good or poor testing to measure the same way? (a) good testing (b) poor testing
3. 3.True or false: to test it only once is poor testing. (a) True (b) False
4. 4.🧪 The first prototype held 190 g. After the team improved it, the new prototype held 350 g. How many more grams did it hold?
5. 5.🔍 Which is the odd one out? (a) use the same load (b) record every result (c) test it only once (d) measure the same way
6. 6.🔢 To build and test a straw bridge, what comes right after “sketch three ideas”? (a) read the challenge rules (b) choose and draw one (c) load it with coins (d) strengthen the weak part
7. 7.🧪 Is it good or poor testing to change only one thing? (a) good testing (b) poor testing
8. 8.🧪 What is a prototype? (a) the final product (b) a sales poster (c) a broken part (d) an early test model
9. 9.🧪 In a fair test, how many things do you change at a time? (a) two (b) all of them (c) none (d) one
10. 10.True or false: to change lots at once is good testing. (a) False (b) True
11. 11.🧪 Why do engineers make prototypes? (a) to test ideas cheaply (b) to sell them at once (c) to avoid testing (d) to decorate a room
12. 12.🔍 Which is the odd one out? (a) change lots at once (b) use a new load each time (c) change only one thing (d) guess, do not measure
13. 13.🧪 The first prototype held 280 g. After the team improved it, the new prototype held 310 g. How many more grams did it hold?
14. 14.🔢 To build and test a straw bridge, which is the FIRST step? (a) load it with coins (b) choose and draw one (c) read the challenge rules (d) strengthen the weak part
15. 15.🧪 Is it good or poor testing to test it only once? (a) good testing (b) poor testing
16. 16.🧪 The first prototype held 280 g. After the team improved it, the new prototype held 460 g. How many more grams did it hold?
17. 17.🔢 To build and test a straw bridge, which comes first: “load it with coins” or “read the challenge rules”? (a) load it with coins (b) read the challenge rules
18. 18.🧪 The first prototype held 120 g. After the team improved it, the new prototype held 150 g. How many more grams did it hold?
19. 19.🧪 The first prototype held 140 g. After the team improved it, the new prototype held 230 g. How many more grams did it hold?
20. 20.🧪 Three prototype bridges were tested with the same method. Design A held 310 g, design B held 260 g and design C held 210 g. Which design was the strongest? (a) design A (b) design C (c) design B
21. 21.🔍 Which is the odd one out? (a) guess, do not measure (b) use a new load each time (c) test it only once (d) repeat each test
22. 22.🧪 A paper bridge was tested three times. It held 420 g, 270 g and 270 g. What is the mean (average) load it held, in grams?
23. 23.True or false: to change only one thing is good testing. (a) False (b) True
24. 24.🔍 Which is the odd one out? (a) use a new load each time (b) skip writing results (c) test it only once (d) measure the same way
25. 25.🔍 Which is the odd one out? (a) guess, do not measure (b) repeat each test (c) measure the same way (d) use the same load
26. 26.🧪 Three prototype bridges were tested with the same method. Design A held 160 g, design B held 210 g and design C held 260 g. Which design was the weakest? (a) design C (b) design A (c) design B
27. 27.🧪 The first prototype held 180 g. After the team improved it, the new prototype held 330 g. How many more grams did it hold?
28. 28.True or false: to test it only once is good testing. (a) False (b) True
29. 29.🧪 A paper bridge was tested three times. It held 360 g, 200 g and 280 g. What is the mean (average) load it held, in grams?
30. 30.🔍 Which is the odd one out? (a) record every result (b) use the same load (c) measure the same way (d) change lots at once
31. 31.🧪 A paper bridge was tested three times. It held 180 g, 80 g and 220 g. What is the mean (average) load it held, in grams?
32. 32.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “load it with coins”? (a) load it with coins (b) read the challenge rules
33. 33.🧪 Is it good or poor testing to record every result? (a) good testing (b) poor testing
34. 34.🧪 Three prototype bridges were tested with the same method. Design A held 160 g, design B held 260 g and design C held 210 g. Which design was the strongest? (a) design A (b) design B (c) design C
35. 35.🧪 The first prototype held 90 g. After the team improved it, the new prototype held 170 g. How many more grams did it hold?
36. 36.🔢 To build and test a straw bridge, what comes right after “read the challenge rules”? (a) load it with coins (b) sketch three ideas (c) build it with straws (d) strengthen the weak part
37. 37.True or false: to hide a failed test is good testing. (a) True (b) False
38. 38.True or false: to repeat each test is poor testing. (a) True (b) False
39. 39.🧪 A paper bridge was tested three times. It held 330 g, 180 g and 300 g. What is the mean (average) load it held, in grams?
40. 40.True or false: to hide a failed test is poor testing. (a) False (b) True

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