Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 582 · 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) use the same load (b) change only one thing (c) skip writing results (d) measure the same way
2. 2.🧪 The first prototype held 90 g. After the team improved it, the new prototype held 110 g. How many more grams did it hold?
3. 3.🧪 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 C (c) design B
4. 4.🔢 To build and test a straw bridge, which comes first: “build it with straws” or “strengthen the weak part”? (a) strengthen the weak part (b) build it with straws
5. 5.True or false: to use a new load each time is poor testing. (a) False (b) True
6. 6.🧪 Is it good or poor testing to repeat each test? (a) poor testing (b) good testing
7. 7.🔢 To build and test a straw bridge, which is the LAST step? (a) read the challenge rules (b) choose and draw one (c) strengthen the weak part (d) build it with straws
8. 8.🧪 A paper bridge was tested three times. It held 320 g, 200 g and 380 g. What is the mean (average) load it held, in grams?
9. 9.🧪 Three prototype bridges were tested with the same method. Design A held 270 g, design B held 320 g and design C held 370 g. Which design was the weakest? (a) design C (b) design B (c) design A
10. 10.🔢 To build and test a straw bridge, which comes first: “load it with coins” or “choose and draw one”? (a) choose and draw one (b) load it with coins
11. 11.🧪 Three prototype bridges were tested with the same method. Design A held 310 g, design B held 210 g and design C held 260 g. Which design was the weakest? (a) design C (b) design B (c) design A
12. 12.True or false: to record every result is good testing. (a) False (b) True
13. 13.🔢 To build and test a straw bridge, what comes right after “build it with straws”? (a) load it with coins (b) strengthen the weak part (c) sketch three ideas (d) read the challenge rules
14. 14.🔢 To build and test a straw bridge, which comes first: “load it with coins” or “sketch three ideas”? (a) load it with coins (b) sketch three ideas
15. 15.🔢 To build and test a straw bridge, which comes first: “choose and draw one” or “strengthen the weak part”? (a) choose and draw one (b) strengthen the weak part
16. 16.🔢 To build and test a straw bridge, which is the FIRST step? (a) read the challenge rules (b) sketch three ideas (c) choose and draw one (d) build it with straws
17. 17.🔢 To build and test a straw bridge, what comes right after “read the challenge rules”? (a) load it with coins (b) choose and draw one (c) strengthen the weak part (d) sketch three ideas
18. 18.True or false: to change only one thing is poor testing. (a) False (b) True
19. 19.🧪 What is a prototype? (a) a sales poster (b) an early test model (c) the final product (d) a broken part
20. 20.🔢 To build and test a straw bridge, which comes first: “load it with coins” or “build it with straws”? (a) build it with straws (b) load it with coins
21. 21.True or false: to test it only once is good testing. (a) True (b) False
22. 22.🧪 In a fair test, how many things do you change at a time? (a) two (b) none (c) one (d) all of them
23. 23.True or false: to test it only once is poor testing. (a) True (b) False
24. 24.🧪 Is it good or poor testing to test it only once? (a) good testing (b) poor testing
25. 25.🧪 A paper bridge was tested three times. It held 270 g, 210 g and 330 g. What is the mean (average) load it held, in grams?
26. 26.🧪 A paper bridge was tested three times. It held 360 g, 190 g and 290 g. What is the mean (average) load it held, in grams?
27. 27.🔍 Which is the odd one out? (a) repeat each test (b) hide a failed test (c) test it only once (d) guess, do not measure
28. 28.🧪 A paper bridge was tested three times. It held 320 g, 250 g and 330 g. What is the mean (average) load it held, in grams?
29. 29.🧪 Why do engineers make prototypes? (a) to sell them at once (b) to decorate a room (c) to test ideas cheaply (d) to avoid testing
30. 30.🧪 Is it good or poor testing to change only one thing? (a) poor testing (b) good testing
31. 31.🔢 To build and test a straw bridge, which comes first: “choose and draw one” or “read the challenge rules”? (a) choose and draw one (b) read the challenge rules
32. 32.🔍 Which is the odd one out? (a) record every result (b) repeat each test (c) test it only once (d) change only one thing
33. 33.🧪 A paper bridge was tested three times. It held 330 g, 180 g and 330 g. What is the mean (average) load it held, in grams?
34. 34.True or false: to repeat each test is poor testing. (a) False (b) True
35. 35.🔢 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
36. 36.🧪 The first prototype held 80 g. After the team improved it, the new prototype held 240 g. How many more grams did it hold?
37. 37.🧪 A paper bridge was tested three times. It held 350 g, 250 g and 180 g. What is the mean (average) load it held, in grams?
38. 38.🧪 A paper bridge was tested three times. It held 330 g, 160 g and 290 g. What is the mean (average) load it held, in grams?
39. 39.🔍 Which is the odd one out? (a) record every result (b) use the same load (c) repeat each test (d) change lots at once
40. 40.🧪 Is it good or poor testing to measure the same way? (a) poor testing (b) good testing

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