Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 605 · 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 270 g. After the team improved it, the new prototype held 440 g. How many more grams did it hold?
2. 2.True or false: to repeat each test is good testing. (a) False (b) True
3. 3.🧪 Three prototype bridges were tested with the same method. Design A held 320 g, design B held 370 g and design C held 270 g. Which design was the weakest? (a) design C (b) design A (c) design B
4. 4.🔢 To build and test a straw bridge, what comes right after “choose and draw one”? (a) read the challenge rules (b) strengthen the weak part (c) build it with straws (d) sketch three ideas
5. 5.🧪 Is it good or poor testing to measure the same way? (a) poor testing (b) good testing
6. 6.🧪 Is it good or poor testing to repeat each test? (a) poor testing (b) good testing
7. 7.🧪 Is it good or poor testing to skip writing results? (a) good testing (b) poor testing
8. 8.🔢 To build and test a straw bridge, which is the FIRST step? (a) load it with coins (b) read the challenge rules (c) sketch three ideas (d) build it with straws
9. 9.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “sketch three ideas”? (a) read the challenge rules (b) sketch three ideas
10. 10.True or false: to measure the same way is good testing. (a) True (b) False
11. 11.🔍 Which is the odd one out? (a) record every result (b) change only one thing (c) change lots at once (d) use the same load
12. 12.🧪 Why repeat a test three times? (a) it looks busy (b) to use more paper (c) the first is wrong (d) to get reliable results
13. 13.🔍 Which is the odd one out? (a) change lots at once (b) use a new load each time (c) use the same load (d) guess, do not measure
14. 14.🧪 Is it good or poor testing to hide a failed test? (a) good testing (b) poor testing
15. 15.🧪 A paper bridge was tested three times. It held 320 g, 200 g and 260 g. What is the mean (average) load it held, in grams?
16. 16.🧪 A paper bridge was tested three times. It held 180 g, 130 g and 170 g. What is the mean (average) load it held, in grams?
17. 17.🧪 Is it good or poor testing to change lots at once? (a) good testing (b) poor testing
18. 18.🧪 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 weakest? (a) design A (b) design B (c) design C
19. 19.🧪 What is a prototype? (a) the final product (b) an early test model (c) a sales poster (d) a broken part
20. 20.🧪 A paper bridge was tested three times. It held 200 g, 110 g and 260 g. What is the mean (average) load it held, in grams?
21. 21.🧪 The first prototype held 70 g. After the team improved it, the new prototype held 270 g. How many more grams did it hold?
22. 22.True or false: to change lots at once is good testing. (a) True (b) False
23. 23.True or false: to guess, do not measure is good testing. (a) True (b) False
24. 24.🔢 To build and test a straw bridge, which comes first: “strengthen the weak part” or “choose and draw one”? (a) choose and draw one (b) strengthen the weak part
25. 25.🧪 Three prototype bridges were tested with the same method. Design A held 280 g, design B held 180 g and design C held 230 g. Which design was the weakest? (a) design C (b) design A (c) design B
26. 26.🧪 A paper bridge was tested three times. It held 270 g, 160 g and 350 g. What is the mean (average) load it held, in grams?
27. 27.🧪 A paper bridge was tested three times. It held 330 g, 260 g and 280 g. What is the mean (average) load it held, in grams?
28. 28.🔢 To build and test a straw bridge, which comes first: “load it with coins” or “strengthen the weak part”? (a) strengthen the weak part (b) load it with coins
29. 29.🧪 The first prototype held 140 g. After the team improved it, the new prototype held 150 g. How many more grams did it hold?
30. 30.🧪 Is it good or poor testing to use a new load each time? (a) good testing (b) poor testing
31. 31.🧪 Is it good or poor testing to use the same load? (a) poor testing (b) good testing
32. 32.🧪 The first prototype held 160 g. After the team improved it, the new prototype held 180 g. How many more grams did it hold?
33. 33.🔢 To build and test a straw bridge, which comes first: “build it with straws” or “choose and draw one”? (a) build it with straws (b) choose and draw one
34. 34.True or false: to repeat each test is poor testing. (a) False (b) True
35. 35.🔢 To build and test a straw bridge, which comes first: “build it with straws” or “read the challenge rules”? (a) build it with straws (b) read the challenge rules
36. 36.True or false: to change only one thing is good testing. (a) True (b) False
37. 37.🔍 Which is the odd one out? (a) hide a failed test (b) use the same load (c) record every result (d) change only one thing
38. 38.🧪 The first prototype held 250 g. After the team improved it, the new prototype held 320 g. How many more grams did it hold?
39. 39.🔍 Which is the odd one out? (a) test it only once (b) change only one thing (c) use the same load (d) repeat each test
40. 40.True or false: to use a new load each time is good testing. (a) False (b) True

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