Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 360 · 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.🧪 What is a prototype? (a) an early test model (b) a sales poster (c) the final product (d) a broken part
2. 2.🔍 Which is the odd one out? (a) use the same load (b) hide a failed test (c) measure the same way (d) change only one thing
3. 3.🧪 Is it good or poor testing to repeat each test? (a) good testing (b) poor testing
4. 4.🔢 To build and test a straw bridge, which is the LAST step? (a) sketch three ideas (b) strengthen the weak part (c) build it with straws (d) read the challenge rules
5. 5.🧪 A paper bridge was tested three times. It held 380 g, 190 g and 300 g. What is the mean (average) load it held, in grams?
6. 6.🧪 Three prototype bridges were tested with the same method. Design A held 400 g, design B held 350 g and design C held 300 g. Which design was the strongest? (a) design B (b) design C (c) design A
7. 7.🧪 Three prototype bridges were tested with the same method. Design A held 290 g, design B held 240 g and design C held 190 g. Which design was the strongest? (a) design A (b) design B (c) design C
8. 8.True or false: to measure the same way is good testing. (a) True (b) False
9. 9.🧪 Three prototype bridges were tested with the same method. Design A held 130 g, design B held 180 g and design C held 230 g. Which design was the strongest? (a) design A (b) design B (c) design C
10. 10.🧪 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
11. 11.🧪 Is it good or poor testing to change only one thing? (a) good testing (b) poor testing
12. 12.🧪 Is it good or poor testing to guess, do not measure? (a) good testing (b) poor testing
13. 13.🔍 Which is the odd one out? (a) record every result (b) measure the same way (c) skip writing results (d) repeat each test
14. 14.🧪 The first prototype held 110 g. After the team improved it, the new prototype held 240 g. How many more grams did it hold?
15. 15.True or false: to repeat each test is good testing. (a) False (b) True
16. 16.🧪 Three prototype bridges were tested with the same method. Design A held 240 g, design B held 140 g and design C held 190 g. Which design was the weakest? (a) design B (b) design A (c) design C
17. 17.🔢 To build and test a straw bridge, which is the FIRST step? (a) sketch three ideas (b) choose and draw one (c) read the challenge rules (d) load it with coins
18. 18.True or false: to guess, do not measure is good testing. (a) True (b) False
19. 19.🔍 Which is the odd one out? (a) repeat each test (b) guess, do not measure (c) use a new load each time (d) hide a failed test
20. 20.🧪 Three prototype bridges were tested with the same method. Design A held 260 g, design B held 310 g and design C held 210 g. Which design was the weakest? (a) design C (b) design B (c) design A
21. 21.🧪 Is it good or poor testing to change lots at once? (a) poor testing (b) good testing
22. 22.True or false: to record every result is good testing. (a) False (b) True
23. 23.🧪 A paper bridge was tested three times. It held 280 g, 230 g and 330 g. What is the mean (average) load it held, in grams?
24. 24.🧪 Is it good or poor testing to hide a failed test? (a) poor testing (b) good testing
25. 25.🧪 In a fair test, how many things do you change at a time? (a) one (b) all of them (c) two (d) none
26. 26.🔢 To build and test a straw bridge, which comes first: “sketch three ideas” or “read the challenge rules”? (a) sketch three ideas (b) read the challenge rules
27. 27.🧪 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 A (b) design B (c) design C
28. 28.🧪 A paper bridge was tested three times. It held 410 g, 330 g and 250 g. What is the mean (average) load it held, in grams?
29. 29.True or false: to use a new load each time is good testing. (a) True (b) False
30. 30.🧪 The first prototype held 200 g. After the team improved it, the new prototype held 240 g. How many more grams did it hold?
31. 31.🔍 Which is the odd one out? (a) use the same load (b) test it only once (c) record every result (d) change only one thing
32. 32.🧪 Why do engineers make prototypes? (a) to decorate a room (b) to sell them at once (c) to test ideas cheaply (d) to avoid testing
33. 33.True or false: to record every result is poor testing. (a) False (b) True
34. 34.🧪 The first prototype held 230 g. After the team improved it, the new prototype held 300 g. How many more grams did it hold?
35. 35.True or false: to change only one thing is good testing. (a) False (b) True
36. 36.🔍 Which is the odd one out? (a) repeat each test (b) use a new load each time (c) change only one thing (d) record every result
37. 37.🧪 A paper bridge was tested three times. It held 270 g, 190 g and 230 g. What is the mean (average) load it held, in grams?
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 210 g. Which design was the strongest? (a) design C (b) design B (c) design A
39. 39.🔢 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
40. 40.🔍 Which is the odd one out? (a) measure the same way (b) change lots at once (c) change only one thing (d) record every result

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