Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 933 · 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) hide a failed test (b) skip writing results (c) use a new load each time (d) repeat each test
2. 2.🔍 Which is the odd one out? (a) measure the same way (b) change only one thing (c) change lots at once (d) use the same load
3. 3.🧪 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 B (b) design C (c) design A
4. 4.🧪 Is it good or poor testing to measure the same way? (a) poor testing (b) good testing
5. 5.🔍 Which is the odd one out? (a) use a new load each time (b) repeat each test (c) measure the same way (d) record every result
6. 6.🧪 The first prototype held 140 g. After the team improved it, the new prototype held 340 g. How many more grams did it hold?
7. 7.🧪 In a fair test, how many things do you change at a time? (a) none (b) one (c) all of them (d) two
8. 8.🧪 A paper bridge was tested three times. It held 300 g, 140 g and 280 g. What is the mean (average) load it held, in grams?
9. 9.🧪 Is it good or poor testing to use the same load? (a) poor testing (b) good testing
10. 10.True or false: to repeat each test is poor testing. (a) True (b) False
11. 11.🔢 To build and test a straw bridge, which is the FIRST step? (a) load it with coins (b) read the challenge rules (c) build it with straws (d) sketch three ideas
12. 12.🔢 To build and test a straw bridge, what comes right after “choose and draw one”? (a) load it with coins (b) sketch three ideas (c) strengthen the weak part (d) build it with straws
13. 13.True or false: to guess, do not measure is good testing. (a) False (b) True
14. 14.True or false: to change lots at once is good testing. (a) False (b) True
15. 15.🧪 Is it good or poor testing to record every result? (a) good testing (b) poor testing
16. 16.🧪 The first prototype held 150 g. After the team improved it, the new prototype held 270 g. How many more grams did it hold?
17. 17.🧪 Is it good or poor testing to change only one thing? (a) good testing (b) poor testing
18. 18.🧪 Three prototype bridges were tested with the same method. Design A held 120 g, design B held 170 g and design C held 220 g. Which design was the strongest? (a) design B (b) design C (c) design A
19. 19.🧪 The first prototype held 60 g. After the team improved it, the new prototype held 90 g. How many more grams did it hold?
20. 20.True or false: to use a new load each time is poor testing. (a) True (b) False
21. 21.🔢 To build and test a straw bridge, which comes first: “strengthen the weak part” or “build it with straws”? (a) strengthen the weak part (b) build it with straws
22. 22.True or false: to change only one thing is poor testing. (a) False (b) True
23. 23.True or false: to repeat each test is good testing. (a) False (b) True
24. 24.🧪 What is a prototype? (a) a sales poster (b) a broken part (c) an early test model (d) the final product
25. 25.🔍 Which is the odd one out? (a) guess, do not measure (b) change lots at once (c) measure the same way (d) skip writing results
26. 26.🧪 Is it good or poor testing to repeat each test? (a) good testing (b) poor testing
27. 27.🧪 Why do engineers make prototypes? (a) to sell them at once (b) to test ideas cheaply (c) to avoid testing (d) to decorate a room
28. 28.🧪 Is it good or poor testing to skip writing results? (a) good testing (b) poor testing
29. 29.🔢 To build and test a straw bridge, which is the LAST step? (a) strengthen the weak part (b) choose and draw one (c) build it with straws (d) read the challenge rules
30. 30.🔍 Which is the odd one out? (a) change only one thing (b) hide a failed test (c) measure the same way (d) repeat each test
31. 31.🔍 Which is the odd one out? (a) change only one thing (b) record every result (c) skip writing results (d) measure the same way
32. 32.🧪 Three prototype bridges were tested with the same method. Design A held 240 g, design B held 290 g and design C held 340 g. Which design was the weakest? (a) design A (b) design C (c) design B
33. 33.🧪 A paper bridge was tested three times. It held 340 g, 270 g and 230 g. What is the mean (average) load it held, in grams?
34. 34.🔢 To build and test a straw bridge, which comes first: “sketch three ideas” or “read the challenge rules”? (a) sketch three ideas (b) read the challenge rules
35. 35.True or false: to test it only once is poor testing. (a) False (b) True
36. 36.🧪 A paper bridge was tested three times. It held 230 g, 160 g and 120 g. What is the mean (average) load it held, in grams?
37. 37.🔢 To build and test a straw bridge, what comes right after “sketch three ideas”? (a) build it with straws (b) load it with coins (c) strengthen the weak part (d) choose and draw one
38. 38.🧪 The first prototype held 100 g. After the team improved it, the new prototype held 250 g. How many more grams did it hold?
39. 39.🔢 To build and test a straw bridge, which comes first: “sketch three ideas” or “choose and draw one”? (a) choose and draw one (b) sketch three ideas
40. 40.🧪 Three prototype bridges were tested with the same method. Design A held 170 g, design B held 220 g and design C held 120 g. Which design was the strongest? (a) design B (b) design A (c) design C

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