Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 834 · 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.🧪 The first prototype held 50 g. After the team improved it, the new prototype held 200 g. How many more grams did it hold?
2. 2.🔢 To build and test a straw bridge, what comes right after “read the challenge rules”? (a) choose and draw one (b) sketch three ideas (c) strengthen the weak part (d) build it with straws
3. 3.True or false: to change only one thing is poor testing. (a) True (b) False
4. 4.🧪 Is it good or poor testing to guess, do not measure? (a) poor testing (b) good testing
5. 5.🧪 Is it good or poor testing to test it only once? (a) good testing (b) poor testing
6. 6.🧪 Three prototype bridges were tested with the same method. Design A held 140 g, design B held 190 g and design C held 240 g. Which design was the weakest? (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 340 g. Which design was the strongest? (a) design B (b) design A (c) design C
8. 8.🧪 A paper bridge was tested three times. It held 340 g, 260 g and 210 g. What is the mean (average) load it held, in grams?
9. 9.True or false: to change lots at once is poor testing. (a) True (b) False
10. 10.True or false: to test it only once is poor testing. (a) False (b) True
11. 11.🧪 Three prototype bridges were tested with the same method. Design A held 330 g, design B held 380 g and design C held 280 g. Which design was the strongest? (a) design A (b) design B (c) design C
12. 12.🧪 Is it good or poor testing to skip writing results? (a) poor testing (b) good testing
13. 13.🧪 Is it good or poor testing to measure the same way? (a) good testing (b) poor testing
14. 14.True or false: to skip writing results is good testing. (a) False (b) True
15. 15.🧪 In a fair test, how many things do you change at a time? (a) two (b) all of them (c) one (d) none
16. 16.🔍 Which is the odd one out? (a) use the same load (b) repeat each test (c) measure the same way (d) change lots at once
17. 17.🔢 To build and test a straw bridge, what comes right after “sketch three ideas”? (a) read the challenge rules (b) strengthen the weak part (c) choose and draw one (d) build it with straws
18. 18.🧪 The first prototype held 160 g. After the team improved it, the new prototype held 240 g. How many more grams did it hold?
19. 19.🔢 To build and test a straw bridge, what comes right after “build it with straws”? (a) choose and draw one (b) load it with coins (c) read the challenge rules (d) strengthen the weak part
20. 20.🧪 A paper bridge was tested three times. It held 260 g, 190 g and 270 g. What is the mean (average) load it held, in grams?
21. 21.🔍 Which is the odd one out? (a) skip writing results (b) repeat each test (c) use the same load (d) record every result
22. 22.🧪 Why repeat a test three times? (a) it looks busy (b) to get reliable results (c) to use more paper (d) the first is wrong
23. 23.🧪 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 weakest? (a) design B (b) design C (c) design A
24. 24.🧪 Is it good or poor testing to record every result? (a) poor testing (b) good testing
25. 25.🔢 To build and test a straw bridge, what comes right after “load it with coins”? (a) read the challenge rules (b) strengthen the weak part (c) build it with straws (d) choose and draw one
26. 26.🧪 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
27. 27.True or false: to guess, do not measure is good testing. (a) True (b) False
28. 28.🔍 Which is the odd one out? (a) test it only once (b) hide a failed test (c) use a new load each time (d) record every result
29. 29.🧪 Is it good or poor testing to use the same load? (a) poor testing (b) good testing
30. 30.🧪 A paper bridge was tested three times. It held 260 g, 160 g and 270 g. What is the mean (average) load it held, in grams?
31. 31.🔢 To build and test a straw bridge, what comes right after “choose and draw one”? (a) build it with straws (b) read the challenge rules (c) strengthen the weak part (d) sketch three ideas
32. 32.🔍 Which is the odd one out? (a) skip writing results (b) measure the same way (c) guess, do not measure (d) test it only once
33. 33.🧪 Three prototype bridges were tested with the same method. Design A held 230 g, design B held 180 g and design C held 280 g. Which design was the weakest? (a) design C (b) design B (c) design A
34. 34.🧪 A paper bridge was tested three times. It held 340 g, 170 g and 240 g. What is the mean (average) load it held, in grams?
35. 35.True or false: to hide a failed test is poor testing. (a) True (b) False
36. 36.True or false: to record every result is good testing. (a) True (b) False
37. 37.🧪 What is a prototype? (a) an early test model (b) the final product (c) a sales poster (d) a broken part
38. 38.🧪 The first prototype held 180 g. After the team improved it, the new prototype held 250 g. How many more grams did it hold?
39. 39.🧪 Is it good or poor testing to use a new load each time? (a) poor testing (b) good testing
40. 40.🧪 The first prototype held 100 g. After the team improved it, the new prototype held 150 g. How many more grams did it hold?

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