Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 12 · 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 170 g. After the team improved it, the new prototype held 210 g. How many more grams did it hold?
2. 2.🧪 A paper bridge was tested three times. It held 330 g, 300 g and 300 g. What is the mean (average) load it held, in grams?
3. 3.🔍 Which is the odd one out? (a) repeat each test (b) test it only once (c) use the same load (d) change only one thing
4. 4.True or false: to record every result is poor testing. (a) True (b) False
5. 5.🔢 To build and test a straw bridge, which comes first: “build it with straws” or “load it with coins”? (a) build it with straws (b) load it with coins
6. 6.🧪 A paper bridge was tested three times. It held 270 g, 110 g and 220 g. What is the mean (average) load it held, in grams?
7. 7.🔢 To build and test a straw bridge, which is the FIRST step? (a) choose and draw one (b) read the challenge rules (c) strengthen the weak part (d) sketch three ideas
8. 8.🔍 Which is the odd one out? (a) use the same load (b) record every result (c) use a new load each time (d) change only one thing
9. 9.🧪 Why do engineers make prototypes? (a) to sell them at once (b) to test ideas cheaply (c) to decorate a room (d) to avoid testing
10. 10.True or false: to measure the same way is poor testing. (a) False (b) True
11. 11.True or false: to repeat each test is good testing. (a) True (b) False
12. 12.🧪 Three prototype bridges were tested with the same method. Design A held 290 g, design B held 340 g and design C held 240 g. Which design was the strongest? (a) design A (b) design C (c) design B
13. 13.True or false: to use the same load is good testing. (a) False (b) True
14. 14.🔍 Which is the odd one out? (a) use a new load each time (b) hide a failed test (c) skip writing results (d) measure the same way
15. 15.🧪 What is a prototype? (a) an early test model (b) a broken part (c) a sales poster (d) the final product
16. 16.🔢 To build and test a straw bridge, what comes right after “load it with coins”? (a) build it with straws (b) choose and draw one (c) strengthen the weak part (d) read the challenge rules
17. 17.🔢 To build and test a straw bridge, which is the LAST step? (a) build it with straws (b) strengthen the weak part (c) load it with coins (d) sketch three ideas
18. 18.🧪 Three prototype bridges were tested with the same method. Design A held 250 g, design B held 350 g and design C held 300 g. Which design was the strongest? (a) design A (b) design B (c) design C
19. 19.🧪 Is it good or poor testing to change lots at once? (a) poor testing (b) good testing
20. 20.🔢 To build and test a straw bridge, what comes right after “choose and draw one”? (a) sketch three ideas (b) build it with straws (c) read the challenge rules (d) load it with coins
21. 21.🔍 Which is the odd one out? (a) change only one thing (b) skip writing results (c) record every result (d) repeat each test
22. 22.🧪 Three prototype bridges were tested with the same method. Design A held 250 g, design B held 150 g and design C held 200 g. Which design was the strongest? (a) design C (b) design B (c) design A
23. 23.True or false: to hide a failed test is poor testing. (a) True (b) False
24. 24.🧪 Is it good or poor testing to record every result? (a) good testing (b) poor testing
25. 25.🔍 Which is the odd one out? (a) use the same load (b) change only one thing (c) record every result (d) hide a failed test
26. 26.🧪 A paper bridge was tested three times. It held 350 g, 250 g and 270 g. What is the mean (average) load it held, in grams?
27. 27.🧪 In a fair test, how many things do you change at a time? (a) none (b) two (c) all of them (d) one
28. 28.🧪 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
29. 29.True or false: to use the same load is poor testing. (a) False (b) True
30. 30.🧪 Is it good or poor testing to measure the same way? (a) poor testing (b) good testing
31. 31.🔍 Which is the odd one out? (a) measure the same way (b) change only one thing (c) change lots at once (d) use the same load
32. 32.🧪 Three prototype bridges were tested with the same method. Design A held 250 g, design B held 300 g and design C held 350 g. Which design was the strongest? (a) design B (b) design C (c) design A
33. 33.🧪 The first prototype held 60 g. After the team improved it, the new prototype held 120 g. How many more grams did it hold?
34. 34.True or false: to hide a failed test is good testing. (a) True (b) False
35. 35.True or false: to skip writing results is good testing. (a) True (b) False
36. 36.True or false: to use a new load each time is good testing. (a) False (b) True
37. 37.🧪 Three prototype bridges were tested with the same method. Design A held 160 g, design B held 110 g and design C held 210 g. Which design was the strongest? (a) design A (b) design B (c) design C
38. 38.True or false: to repeat each test is poor testing. (a) True (b) False
39. 39.🧪 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 C (c) design B
40. 40.🧪 A paper bridge was tested three times. It held 400 g, 250 g and 370 g. What is the mean (average) load it held, in grams?

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