Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 62 · 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) repeat each test (c) change only one thing (d) test it only once
2. 2.🧪 The first prototype held 150 g. After the team improved it, the new prototype held 290 g. How many more grams did it hold?
3. 3.🧪 Why do engineers make prototypes? (a) to avoid testing (b) to sell them at once (c) to decorate a room (d) to test ideas cheaply
4. 4.🔍 Which is the odd one out? (a) skip writing results (b) record every result (c) measure the same way (d) change only one thing
5. 5.🧪 Is it good or poor testing to repeat each test? (a) good testing (b) poor testing
6. 6.True or false: to record every result is poor testing. (a) False (b) True
7. 7.🧪 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
8. 8.🧪 A paper bridge was tested three times. It held 320 g, 230 g and 380 g. What is the mean (average) load it held, in grams?
9. 9.True or false: to skip writing results is poor testing. (a) False (b) True
10. 10.🧪 The first prototype held 210 g. After the team improved it, the new prototype held 260 g. How many more grams did it hold?
11. 11.🧪 In a fair test, how many things do you change at a time? (a) two (b) all of them (c) none (d) one
12. 12.🧪 The first prototype held 190 g. After the team improved it, the new prototype held 210 g. How many more grams did it hold?
13. 13.True or false: to use the same load is good testing. (a) False (b) True
14. 14.🔢 To build and test a straw bridge, what comes right after “choose and draw one”? (a) strengthen the weak part (b) build it with straws (c) sketch three ideas (d) load it with coins
15. 15.True or false: to hide a failed test is good testing. (a) True (b) False
16. 16.🔢 To build and test a straw bridge, what comes right after “read the challenge rules”? (a) sketch three ideas (b) strengthen the weak part (c) load it with coins (d) build it with straws
17. 17.🔍 Which is the odd one out? (a) repeat each test (b) record every result (c) change only one thing (d) change lots at once
18. 18.🧪 Is it good or poor testing to change lots at once? (a) good testing (b) poor testing
19. 19.True or false: to skip writing results is good testing. (a) False (b) True
20. 20.🧪 A paper bridge was tested three times. It held 250 g, 170 g and 330 g. What is the mean (average) load it held, in grams?
21. 21.True or false: to repeat each test is good testing. (a) True (b) False
22. 22.🧪 Three prototype bridges were tested with the same method. Design A held 300 g, design B held 400 g and design C held 350 g. Which design was the weakest? (a) design B (b) design C (c) design A
23. 23.🧪 What is a prototype? (a) a broken part (b) a sales poster (c) the final product (d) an early test model
24. 24.🔢 To build and test a straw bridge, what comes right after “load it with coins”? (a) sketch three ideas (b) choose and draw one (c) read the challenge rules (d) strengthen the weak part
25. 25.🧪 Is it good or poor testing to measure the same way? (a) good testing (b) poor testing
26. 26.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “build it with straws”? (a) build it with straws (b) read the challenge rules
27. 27.🧪 The first prototype held 260 g. After the team improved it, the new prototype held 420 g. How many more grams did it hold?
28. 28.🔢 To build and test a straw bridge, which is the FIRST step? (a) choose and draw one (b) load it with coins (c) strengthen the weak part (d) read the challenge rules
29. 29.True or false: to use the same load is poor testing. (a) True (b) False
30. 30.True or false: to test it only once is good testing. (a) True (b) False
31. 31.🧪 A paper bridge was tested three times. It held 320 g, 280 g and 330 g. What is the mean (average) load it held, in grams?
32. 32.🧪 Three prototype bridges were tested with the same method. Design A held 200 g, design B held 250 g and design C held 300 g. Which design was the weakest? (a) design C (b) design B (c) design A
33. 33.🧪 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 A (b) design B (c) design C
34. 34.🔍 Which is the odd one out? (a) test it only once (b) use the same load (c) skip writing results (d) use a new load each time
35. 35.True or false: to test it only once is poor testing. (a) True (b) False
36. 36.🧪 Three prototype bridges were tested with the same method. Design A held 240 g, design B held 290 g and design C held 340 g. Which design was the weakest? (a) design B (b) design C (c) design A
37. 37.🧪 Is it good or poor testing to change only one thing? (a) poor testing (b) good testing
38. 38.True or false: to measure the same way is poor testing. (a) True (b) False
39. 39.🧪 The first prototype held 240 g. After the team improved it, the new prototype held 280 g. How many more grams did it hold?
40. 40.🔢 To build and test a straw bridge, what comes right after “build it with straws”? (a) strengthen the weak part (b) sketch three ideas (c) load it with coins (d) read the challenge rules

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