Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 879 · 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.🧪 Is it good or poor testing to repeat each test? (a) good testing (b) poor testing
2. 2.🔍 Which is the odd one out? (a) record every result (b) measure the same way (c) change only one thing (d) hide a failed test
3. 3.🧪 A paper bridge was tested three times. It held 310 g, 280 g and 340 g. What is the mean (average) load it held, in grams?
4. 4.True or false: to test it only once is good testing. (a) True (b) False
5. 5.🔍 Which is the odd one out? (a) record every result (b) repeat each test (c) change lots at once (d) change only one thing
6. 6.🧪 Is it good or poor testing to change lots at once? (a) good testing (b) poor testing
7. 7.🧪 Why repeat a test three times? (a) to use more paper (b) it looks busy (c) to get reliable results (d) the first is wrong
8. 8.🧪 Three prototype bridges were tested with the same method. Design A held 220 g, design B held 270 g and design C held 170 g. Which design was the weakest? (a) design A (b) design B (c) design C
9. 9.🔢 To build and test a straw bridge, which comes first: “build it with straws” or “read the challenge rules”? (a) read the challenge rules (b) build it with straws
10. 10.🔢 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) load it with coins (d) sketch three ideas
11. 11.🧪 Three prototype bridges were tested with the same method. Design A held 200 g, design B held 100 g and design C held 150 g. Which design was the strongest? (a) design A (b) design C (c) design B
12. 12.🔍 Which is the odd one out? (a) repeat each test (b) use the same load (c) test it only once (d) measure the same way
13. 13.🔢 To build and test a straw bridge, which is the FIRST step? (a) choose and draw one (b) build it with straws (c) read the challenge rules (d) sketch three ideas
14. 14.🔍 Which is the odd one out? (a) measure the same way (b) record every result (c) skip writing results (d) repeat each test
15. 15.🧪 The first prototype held 130 g. After the team improved it, the new prototype held 230 g. How many more grams did it hold?
16. 16.🔍 Which is the odd one out? (a) hide a failed test (b) change only one thing (c) use a new load each time (d) test it only once
17. 17.🧪 Three prototype bridges were tested with the same method. Design A held 160 g, design B held 210 g and design C held 110 g. Which design was the strongest? (a) design C (b) design A (c) design B
18. 18.🧪 A paper bridge was tested three times. It held 200 g, 180 g and 160 g. What is the mean (average) load it held, in grams?
19. 19.🧪 In a fair test, how many things do you change at a time? (a) all of them (b) none (c) two (d) one
20. 20.🔢 To build and test a straw bridge, what comes right after “sketch three ideas”? (a) build it with straws (b) choose and draw one (c) strengthen the weak part (d) load it with coins
21. 21.🧪 Is it good or poor testing to change only one thing? (a) poor testing (b) good testing
22. 22.🧪 The first prototype held 250 g. After the team improved it, the new prototype held 290 g. How many more grams did it hold?
23. 23.🔢 To build and test a straw bridge, which comes first: “build it with straws” or “choose and draw one”? (a) choose and draw one (b) build it with straws
24. 24.🧪 The first prototype held 80 g. After the team improved it, the new prototype held 160 g. How many more grams did it hold?
25. 25.🧪 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
26. 26.🔢 To build and test a straw bridge, what comes right after “read the challenge rules”? (a) build it with straws (b) choose and draw one (c) sketch three ideas (d) strengthen the weak part
27. 27.🧪 Is it good or poor testing to use a new load each time? (a) poor testing (b) good testing
28. 28.True or false: to change lots at once is good testing. (a) False (b) True
29. 29.True or false: to use a new load each time is poor testing. (a) False (b) True
30. 30.🧪 Three prototype bridges were tested with the same method. Design A held 150 g, design B held 200 g and design C held 100 g. Which design was the weakest? (a) design C (b) design B (c) design A
31. 31.🧪 Is it good or poor testing to use the same load? (a) poor testing (b) good testing
32. 32.True or false: to change only one thing is poor testing. (a) False (b) True
33. 33.🧪 A paper bridge was tested three times. It held 300 g, 260 g and 280 g. What is the mean (average) load it held, in grams?
34. 34.🔍 Which is the odd one out? (a) use the same load (b) skip writing results (c) hide a failed test (d) guess, do not measure
35. 35.True or false: to change only one thing is good testing. (a) True (b) False
36. 36.🧪 Is it good or poor testing to hide a failed test? (a) poor testing (b) good testing
37. 37.🧪 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 weakest? (a) design B (b) design A (c) design C
38. 38.🧪 Three prototype bridges were tested with the same method. Design A held 260 g, design B held 310 g and design C held 360 g. Which design was the strongest? (a) design C (b) design A (c) design B
39. 39.🧪 What is a prototype? (a) a broken part (b) a sales poster (c) an early test model (d) the final product
40. 40.🧪 A paper bridge was tested three times. It held 370 g, 310 g and 280 g. What is the mean (average) load it held, in grams?

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