Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 704 · 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.🔢 To build and test a straw bridge, which is the FIRST step? (a) sketch three ideas (b) build it with straws (c) read the challenge rules (d) load it with coins
2. 2.🧪 What is a prototype? (a) a sales poster (b) an early test model (c) the final product (d) a broken part
3. 3.🔢 To build and test a straw bridge, which comes first: “strengthen the weak part” or “read the challenge rules”? (a) strengthen the weak part (b) read the challenge rules
4. 4.🔍 Which is the odd one out? (a) guess, do not measure (b) change lots at once (c) repeat each test (d) test it only once
5. 5.🧪 Why do engineers make prototypes? (a) to sell them at once (b) to decorate a room (c) to avoid testing (d) to test ideas cheaply
6. 6.🧪 Is it good or poor testing to hide a failed test? (a) good testing (b) poor testing
7. 7.🧪 A paper bridge was tested three times. It held 270 g, 200 g and 130 g. What is the mean (average) load it held, in grams?
8. 8.🔢 To build and test a straw bridge, what comes right after “sketch three ideas”? (a) choose and draw one (b) read the challenge rules (c) strengthen the weak part (d) load it with coins
9. 9.🧪 Is it good or poor testing to record every result? (a) good testing (b) poor testing
10. 10.🧪 The first prototype held 160 g. After the team improved it, the new prototype held 190 g. How many more grams did it hold?
11. 11.True or false: to change lots at once is good testing. (a) True (b) False
12. 12.🧪 In a fair test, how many things do you change at a time? (a) two (b) all of them (c) one (d) none
13. 13.🔢 To build and test a straw bridge, which comes first: “choose and draw one” or “read the challenge rules”? (a) read the challenge rules (b) choose and draw one
14. 14.True or false: to use a new load each time is good testing. (a) True (b) False
15. 15.🧪 A paper bridge was tested three times. It held 270 g, 240 g and 270 g. What is the mean (average) load it held, in grams?
16. 16.True or false: to skip writing results is good testing. (a) True (b) False
17. 17.🔍 Which is the odd one out? (a) hide a failed test (b) use the same load (c) skip writing results (d) change lots at once
18. 18.🧪 Is it good or poor testing to test it only once? (a) poor testing (b) good testing
19. 19.🧪 A paper bridge was tested three times. It held 210 g, 110 g and 190 g. What is the mean (average) load it held, in grams?
20. 20.True or false: to test it only once is good testing. (a) False (b) True
21. 21.🧪 The first prototype held 160 g. After the team improved it, the new prototype held 330 g. How many more grams did it hold?
22. 22.🧪 The first prototype held 160 g. After the team improved it, the new prototype held 340 g. How many more grams did it hold?
23. 23.🧪 Is it good or poor testing to use a new load each time? (a) good testing (b) poor testing
24. 24.True or false: to use a new load each time is poor testing. (a) False (b) True
25. 25.🧪 The first prototype held 270 g. After the team improved it, the new prototype held 400 g. How many more grams did it hold?
26. 26.🔍 Which is the odd one out? (a) measure the same way (b) record every result (c) change lots at once (d) repeat each test
27. 27.🧪 Is it good or poor testing to measure the same way? (a) poor testing (b) good testing
28. 28.True or false: to repeat each test is good testing. (a) True (b) False
29. 29.🧪 Three prototype bridges were tested with the same method. Design A held 280 g, design B held 330 g and design C held 380 g. Which design was the strongest? (a) design C (b) design B (c) design A
30. 30.🔢 To build and test a straw bridge, what comes right after “read the challenge rules”? (a) build it with straws (b) strengthen the weak part (c) sketch three ideas (d) choose and draw one
31. 31.🔍 Which is the odd one out? (a) repeat each test (b) measure the same way (c) test it only once (d) record every result
32. 32.🧪 Three prototype bridges were tested with the same method. Design A held 200 g, design B held 300 g and design C held 250 g. Which design was the strongest? (a) design B (b) design A (c) design C
33. 33.🔢 To build and test a straw bridge, what comes right after “choose and draw one”? (a) build it with straws (b) strengthen the weak part (c) sketch three ideas (d) read the challenge rules
34. 34.🔢 To build and test a straw bridge, which comes first: “build it with straws” or “strengthen the weak part”? (a) build it with straws (b) strengthen the weak part
35. 35.🧪 A paper bridge was tested three times. It held 340 g, 300 g and 380 g. What is the mean (average) load it held, in grams?
36. 36.🧪 Three prototype bridges were tested with the same method. Design A held 150 g, design B held 200 g and design C held 250 g. Which design was the weakest? (a) design B (b) design A (c) design C
37. 37.🔢 To build and test a straw bridge, what comes right after “load it with coins”? (a) build it with straws (b) choose and draw one (c) strengthen the weak part (d) read the challenge rules
38. 38.🧪 Three prototype bridges were tested with the same method. Design A held 250 g, design B held 150 g and design C held 200 g. Which design was the strongest? (a) design A (b) design B (c) design C
39. 39.🔢 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
40. 40.🧪 A paper bridge was tested three times. It held 440 g, 320 g and 260 g. What is the mean (average) load it held, in grams?

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