Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 958 · 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) change lots at once (b) record every result (c) skip writing results (d) use a new load each time
2. 2.🧪 A paper bridge was tested three times. It held 310 g, 260 g and 240 g. What is the mean (average) load it held, in grams?
3. 3.🧪 Why do engineers make prototypes? (a) to test ideas cheaply (b) to decorate a room (c) to avoid testing (d) to sell them at once
4. 4.🔢 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
5. 5.🧪 What is a prototype? (a) a broken part (b) a sales poster (c) the final product (d) an early test model
6. 6.🧪 Why repeat a test three times? (a) it looks busy (b) the first is wrong (c) to get reliable results (d) to use more paper
7. 7.🔍 Which is the odd one out? (a) skip writing results (b) hide a failed test (c) test it only once (d) repeat each test
8. 8.🧪 A paper bridge was tested three times. It held 280 g, 220 g and 160 g. What is the mean (average) load it held, in grams?
9. 9.🧪 Three prototype bridges were tested with the same method. Design A held 330 g, design B held 280 g and design C held 230 g. Which design was the strongest? (a) design B (b) design C (c) design A
10. 10.True or false: to use the same load is poor testing. (a) False (b) True
11. 11.🧪 Is it good or poor testing to guess, do not measure? (a) poor testing (b) good testing
12. 12.🧪 Is it good or poor testing to repeat each test? (a) poor testing (b) good testing
13. 13.🧪 Is it good or poor testing to change only one thing? (a) poor testing (b) good testing
14. 14.🧪 A paper bridge was tested three times. It held 180 g, 170 g and 160 g. What is the mean (average) load it held, in grams?
15. 15.True or false: to measure the same way is poor testing. (a) False (b) True
16. 16.🔍 Which is the odd one out? (a) use the same load (b) measure the same way (c) use a new load each time (d) record every result
17. 17.🧪 A paper bridge was tested three times. It held 330 g, 240 g and 180 g. What is the mean (average) load it held, in grams?
18. 18.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “strengthen the weak part”? (a) strengthen the weak part (b) read the challenge rules
19. 19.True or false: to change lots at once is good testing. (a) True (b) False
20. 20.🧪 Is it good or poor testing to record every result? (a) poor testing (b) good testing
21. 21.🧪 A paper bridge was tested three times. It held 280 g, 240 g and 200 g. What is the mean (average) load it held, in grams?
22. 22.🧪 Three prototype bridges were tested with the same method. Design A held 220 g, design B held 320 g and design C held 270 g. Which design was the strongest? (a) design A (b) design B (c) design C
23. 23.🔢 To build and test a straw bridge, which is the LAST step? (a) read the challenge rules (b) strengthen the weak part (c) load it with coins (d) sketch three ideas
24. 24.🧪 Is it good or poor testing to skip writing results? (a) good testing (b) poor testing
25. 25.True or false: to repeat each test is good testing. (a) False (b) True
26. 26.🔍 Which is the odd one out? (a) change lots at once (b) measure the same way (c) use the same load (d) record every result
27. 27.🧪 A paper bridge was tested three times. It held 220 g, 140 g and 120 g. What is the mean (average) load it held, in grams?
28. 28.🧪 Three prototype bridges were tested with the same method. Design A held 290 g, design B held 190 g and design C held 240 g. Which design was the strongest? (a) design B (b) design A (c) design C
29. 29.🧪 Is it good or poor testing to use the same load? (a) good testing (b) poor testing
30. 30.🧪 Three prototype bridges were tested with the same method. Design A held 160 g, design B held 210 g and design C held 110 g. Which design was the weakest? (a) design B (b) design A (c) design C
31. 31.🧪 A paper bridge was tested three times. It held 250 g, 150 g and 140 g. What is the mean (average) load it held, in grams?
32. 32.🧪 A paper bridge was tested three times. It held 400 g, 340 g and 280 g. What is the mean (average) load it held, in grams?
33. 33.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “load it with coins”? (a) read the challenge rules (b) load it with coins
34. 34.🧪 The first prototype held 100 g. After the team improved it, the new prototype held 270 g. How many more grams did it hold?
35. 35.🧪 A paper bridge was tested three times. It held 310 g, 240 g and 200 g. What is the mean (average) load it held, in grams?
36. 36.True or false: to record every result is good testing. (a) False (b) True
37. 37.True or false: to measure the same way is good testing. (a) True (b) False
38. 38.🧪 Is it good or poor testing to change lots at once? (a) good testing (b) poor testing
39. 39.🧪 In a fair test, how many things do you change at a time? (a) none (b) two (c) one (d) all of them
40. 40.🧪 Is it good or poor testing to hide a failed test? (a) good testing (b) poor testing

Free engineering lessons, practice and worksheets at talentjr.in/engineering-for-kids