Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 648 · 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 comes first: “load it with coins” or “read the challenge rules”? (a) load it with coins (b) read the challenge rules
2. 2.🧪 A paper bridge was tested three times. It held 300 g, 140 g and 190 g. What is the mean (average) load it held, in grams?
3. 3.🔢 To build and test a straw bridge, which comes first: “choose and draw one” or “sketch three ideas”? (a) sketch three ideas (b) choose and draw one
4. 4.🧪 Three prototype bridges were tested with the same method. Design A held 150 g, design B held 100 g and design C held 200 g. Which design was the strongest? (a) design B (b) design C (c) design A
5. 5.🔍 Which is the odd one out? (a) use the same load (b) test it only once (c) guess, do not measure (d) use a new load each time
6. 6.🧪 A paper bridge was tested three times. It held 350 g, 270 g and 340 g. What is the mean (average) load it held, in grams?
7. 7.True or false: to skip writing results is poor testing. (a) False (b) True
8. 8.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “strengthen the weak part”? (a) read the challenge rules (b) strengthen the weak part
9. 9.🧪 What is a prototype? (a) a broken part (b) an early test model (c) the final product (d) a sales poster
10. 10.🔢 To build and test a straw bridge, which comes first: “load it with coins” or “strengthen the weak part”? (a) strengthen the weak part (b) load it with coins
11. 11.🔍 Which is the odd one out? (a) measure the same way (b) change lots at once (c) change only one thing (d) repeat each test
12. 12.🔢 To build and test a straw bridge, what comes right after “read the challenge rules”? (a) sketch three ideas (b) load it with coins (c) build it with straws (d) strengthen the weak part
13. 13.🧪 The first prototype held 130 g. After the team improved it, the new prototype held 270 g. How many more grams did it hold?
14. 14.🧪 A paper bridge was tested three times. It held 240 g, 100 g and 110 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 300 g, design B held 250 g and design C held 200 g. Which design was the strongest? (a) design C (b) design A (c) design B
16. 16.🔍 Which is the odd one out? (a) change only one thing (b) record every result (c) use a new load each time (d) repeat each test
17. 17.🧪 The first prototype held 260 g. After the team improved it, the new prototype held 340 g. How many more grams did it hold?
18. 18.🧪 Three prototype bridges were tested with the same method. Design A held 240 g, design B held 340 g and design C held 290 g. Which design was the weakest? (a) design B (b) design C (c) design A
19. 19.🔢 To build and test a straw bridge, which comes first: “strengthen the weak part” or “sketch three ideas”? (a) strengthen the weak part (b) sketch three ideas
20. 20.🧪 Is it good or poor testing to record every result? (a) poor testing (b) good testing
21. 21.🔢 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
22. 22.🔢 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
23. 23.🧪 Is it good or poor testing to change lots at once? (a) good testing (b) poor testing
24. 24.🧪 Why repeat a test three times? (a) to get reliable results (b) to use more paper (c) it looks busy (d) the first is wrong
25. 25.True or false: to change only one thing is poor testing. (a) True (b) False
26. 26.True or false: to hide a failed test is poor testing. (a) True (b) False
27. 27.🔍 Which is the odd one out? (a) test it only once (b) skip writing results (c) hide a failed test (d) record every result
28. 28.🧪 Is it good or poor testing to test it only once? (a) good testing (b) poor testing
29. 29.🔢 To build and test a straw bridge, which comes first: “strengthen the weak part” or “read the challenge rules”? (a) read the challenge rules (b) strengthen the weak part
30. 30.🔍 Which is the odd one out? (a) guess, do not measure (b) skip writing results (c) hide a failed test (d) change only one thing
31. 31.🔢 To build and test a straw bridge, what comes right after “choose and draw one”? (a) read the challenge rules (b) strengthen the weak part (c) build it with straws (d) load it with coins
32. 32.🧪 The first prototype held 140 g. After the team improved it, the new prototype held 240 g. How many more grams did it hold?
33. 33.🔢 To build and test a straw bridge, what comes right after “load it with coins”? (a) strengthen the weak part (b) choose and draw one (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 “sketch three ideas”? (a) sketch three ideas (b) build it with straws
35. 35.🧪 Is it good or poor testing to change only one thing? (a) good testing (b) poor testing
36. 36.🔢 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) sketch three ideas
37. 37.True or false: to measure the same way is poor testing. (a) True (b) False
38. 38.True or false: to test it only once is good testing. (a) False (b) True
39. 39.🧪 Three prototype bridges were tested with the same method. Design A held 210 g, design B held 310 g and design C held 260 g. Which design was the weakest? (a) design A (b) design B (c) design C
40. 40.🧪 The first prototype held 210 g. After the team improved it, the new prototype held 380 g. How many more grams did it hold?

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