Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 689 · 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, what comes right after “build it with straws”? (a) load it with coins (b) read the challenge rules (c) choose and draw one (d) strengthen the weak part
2. 2.🧪 Is it good or poor testing to use the same load? (a) poor testing (b) good testing
3. 3.🧪 The first prototype held 160 g. After the team improved it, the new prototype held 220 g. How many more grams did it hold?
4. 4.🧪 Why repeat a test three times? (a) to get reliable results (b) the first is wrong (c) it looks busy (d) to use more paper
5. 5.🧪 Is it good or poor testing to record every result? (a) poor testing (b) good testing
6. 6.🧪 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 weakest? (a) design A (b) design C (c) design B
7. 7.🧪 Three prototype bridges were tested with the same method. Design A held 250 g, design B held 200 g and design C held 300 g. Which design was the weakest? (a) design C (b) design B (c) design A
8. 8.🔍 Which is the odd one out? (a) repeat each test (b) guess, do not measure (c) change only one thing (d) use the same load
9. 9.🔍 Which is the odd one out? (a) repeat each test (b) skip writing results (c) use the same load (d) measure the same way
10. 10.🔢 To build and test a straw bridge, which comes first: “sketch three ideas” or “load it with coins”? (a) sketch three ideas (b) load it with coins
11. 11.🧪 The first prototype held 190 g. After the team improved it, the new prototype held 370 g. How many more grams did it hold?
12. 12.🧪 What is a prototype? (a) the final product (b) a sales poster (c) a broken part (d) an early test model
13. 13.True or false: to record every result is good testing. (a) True (b) False
14. 14.🧪 The first prototype held 80 g. After the team improved it, the new prototype held 230 g. How many more grams did it hold?
15. 15.🧪 Is it good or poor testing to test it only once? (a) good testing (b) poor testing
16. 16.🧪 Three prototype bridges were tested with the same method. Design A held 180 g, design B held 230 g and design C held 130 g. Which design was the strongest? (a) design B (b) design A (c) design C
17. 17.🔍 Which is the odd one out? (a) change only one thing (b) hide a failed test (c) record every result (d) repeat each test
18. 18.🧪 Is it good or poor testing to measure the same way? (a) poor testing (b) good testing
19. 19.🔢 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
20. 20.🧪 The first prototype held 110 g. After the team improved it, the new prototype held 160 g. How many more grams did it hold?
21. 21.🧪 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 A (b) design C (c) design B
22. 22.🧪 Three prototype bridges were tested with the same method. Design A held 300 g, design B held 350 g and design C held 250 g. Which design was the strongest? (a) design A (b) design B (c) design C
23. 23.🧪 Is it good or poor testing to change only one thing? (a) good testing (b) poor testing
24. 24.🧪 A paper bridge was tested three times. It held 210 g, 140 g and 130 g. What is the mean (average) load it held, in grams?
25. 25.🧪 The first prototype held 130 g. After the team improved it, the new prototype held 140 g. How many more grams did it hold?
26. 26.🧪 A paper bridge was tested three times. It held 340 g, 290 g and 300 g. What is the mean (average) load it held, in grams?
27. 27.🧪 Three prototype bridges were tested with the same method. Design A held 190 g, design B held 290 g and design C held 240 g. Which design was the weakest? (a) design C (b) design A (c) design B
28. 28.🔢 To build and test a straw bridge, which is the LAST step? (a) strengthen the weak part (b) sketch three ideas (c) read the challenge rules (d) build it with straws
29. 29.🧪 Is it good or poor testing to repeat each test? (a) poor testing (b) good testing
30. 30.🔢 To build and test a straw bridge, which comes first: “load it with coins” or “choose and draw one”? (a) load it with coins (b) choose and draw one
31. 31.🔍 Which is the odd one out? (a) change lots at once (b) measure the same way (c) change only one thing (d) record every result
32. 32.🧪 Three prototype bridges were tested with the same method. Design A held 310 g, design B held 260 g and design C held 210 g. Which design was the strongest? (a) design A (b) design C (c) design B
33. 33.🔢 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) strengthen the weak part
34. 34.🧪 In a fair test, how many things do you change at a time? (a) two (b) all of them (c) one (d) none
35. 35.🧪 The first prototype held 230 g. After the team improved it, the new prototype held 260 g. How many more grams did it hold?
36. 36.🔍 Which is the odd one out? (a) use a new load each time (b) hide a failed test (c) test it only once (d) use the same load
37. 37.🧪 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
38. 38.🧪 The first prototype held 60 g. After the team improved it, the new prototype held 110 g. How many more grams did it hold?
39. 39.🧪 The first prototype held 130 g. After the team improved it, the new prototype held 200 g. How many more grams did it hold?
40. 40.🧪 The first prototype held 300 g. After the team improved it, the new prototype held 480 g. How many more grams did it hold?

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