Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 51 · 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.🧪 The first prototype held 90 g. After the team improved it, the new prototype held 220 g. How many more grams did it hold?
2. 2.🧪 Three prototype bridges were tested with the same method. Design A held 240 g, design B held 290 g and design C held 190 g. Which design was the weakest? (a) design A (b) design C (c) design B
3. 3.🧪 Is it good or poor testing to change only one thing? (a) good testing (b) poor testing
4. 4.🧪 Why repeat a test three times? (a) the first is wrong (b) to get reliable results (c) to use more paper (d) it looks busy
5. 5.🔢 To build and test a straw bridge, which comes first: “choose and draw one” or “strengthen the weak part”? (a) strengthen the weak part (b) choose and draw one
6. 6.🔍 Which is the odd one out? (a) repeat each test (b) measure the same way (c) use the same load (d) hide a failed test
7. 7.🧪 Three prototype bridges were tested with the same method. Design A held 220 g, design B held 320 g and design C held 270 g. Which design was the strongest? (a) design C (b) design A (c) design B
8. 8.True or false: to change lots at once is poor testing. (a) True (b) False
9. 9.🧪 What is a prototype? (a) an early test model (b) a broken part (c) a sales poster (d) the final product
10. 10.🔢 To build and test a straw bridge, which is the LAST step? (a) build it with straws (b) choose and draw one (c) sketch three ideas (d) strengthen the weak part
11. 11.🧪 The first prototype held 210 g. After the team improved it, the new prototype held 250 g. How many more grams did it hold?
12. 12.🔍 Which is the odd one out? (a) measure the same way (b) skip writing results (c) repeat each test (d) record every result
13. 13.True or false: to guess, do not measure is good testing. (a) True (b) False
14. 14.True or false: to use a new load each time is poor testing. (a) True (b) False
15. 15.🧪 Is it good or poor testing to use a new load each time? (a) good testing (b) poor testing
16. 16.🧪 In a fair test, how many things do you change at a time? (a) one (b) all of them (c) two (d) none
17. 17.True or false: to record every result is poor testing. (a) True (b) False
18. 18.🧪 Is it good or poor testing to guess, do not measure? (a) poor testing (b) good testing
19. 19.True or false: to change only one thing is poor testing. (a) True (b) False
20. 20.🧪 Is it good or poor testing to test it only once? (a) good testing (b) poor testing
21. 21.🔍 Which is the odd one out? (a) guess, do not measure (b) change only one thing (c) hide a failed test (d) use a new load each time
22. 22.🧪 Why do engineers make prototypes? (a) to test ideas cheaply (b) to sell them at once (c) to decorate a room (d) to avoid testing
23. 23.🔍 Which is the odd one out? (a) use a new load each time (b) measure the same way (c) repeat each test (d) record every result
24. 24.🧪 A paper bridge was tested three times. It held 320 g, 240 g and 160 g. What is the mean (average) load it held, in grams?
25. 25.True or false: to repeat each test is good testing. (a) False (b) True
26. 26.🧪 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 A (b) design C (c) design B
27. 27.🔢 To build and test a straw bridge, which comes first: “sketch three ideas” or “load it with coins”? (a) sketch three ideas (b) load it with coins
28. 28.🔍 Which is the odd one out? (a) hide a failed test (b) repeat each test (c) guess, do not measure (d) change lots at once
29. 29.🧪 Three prototype bridges were tested with the same method. Design A held 150 g, design B held 250 g and design C held 200 g. Which design was the weakest? (a) design C (b) design A (c) design B
30. 30.🧪 Three prototype bridges were tested with the same method. Design A held 310 g, design B held 360 g and design C held 260 g. Which design was the weakest? (a) design A (b) design B (c) design C
31. 31.True or false: to measure the same way is poor testing. (a) True (b) False
32. 32.🧪 A paper bridge was tested three times. It held 370 g, 290 g and 330 g. What is the mean (average) load it held, in grams?
33. 33.🧪 A paper bridge was tested three times. It held 290 g, 190 g and 90 g. What is the mean (average) load it held, in grams?
34. 34.🧪 Three prototype bridges were tested with the same method. Design A held 320 g, design B held 270 g and design C held 370 g. Which design was the weakest? (a) design C (b) design B (c) design A
35. 35.True or false: to skip writing results is poor testing. (a) False (b) True
36. 36.True or false: to use the same load is good testing. (a) True (b) False
37. 37.🔍 Which is the odd one out? (a) test it only once (b) use the same load (c) change lots at once (d) skip writing results
38. 38.🔍 Which is the odd one out? (a) use the same load (b) repeat each test (c) change only one thing (d) test it only once
39. 39.🔢 To build and test a straw bridge, which comes first: “load it with coins” or “read the challenge rules”? (a) read the challenge rules (b) load it with coins
40. 40.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “sketch three ideas”? (a) read the challenge rules (b) sketch three ideas

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