Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 714 · 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.🧪 Is it good or poor testing to use the same load? (a) poor testing (b) good testing
2. 2.True or false: to use a new load each time is good testing. (a) True (b) False
3. 3.🧪 A paper bridge was tested three times. It held 210 g, 160 g and 170 g. What is the mean (average) load it held, in grams?
4. 4.🔍 Which is the odd one out? (a) hide a failed test (b) test it only once (c) guess, do not measure (d) record every result
5. 5.🧪 The first prototype held 200 g. After the team improved it, the new prototype held 350 g. How many more grams did it hold?
6. 6.🔢 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
7. 7.🧪 Is it good or poor testing to record every result? (a) poor testing (b) good testing
8. 8.🧪 Is it good or poor testing to measure the same way? (a) good testing (b) poor testing
9. 9.🧪 What is a prototype? (a) the final product (b) a sales poster (c) a broken part (d) an early test model
10. 10.True or false: to measure the same way is poor testing. (a) False (b) True
11. 11.🧪 Is it good or poor testing to hide a failed test? (a) poor testing (b) good testing
12. 12.🔍 Which is the odd one out? (a) test it only once (b) use a new load each time (c) change only one thing (d) guess, do not measure
13. 13.🔍 Which is the odd one out? (a) measure the same way (b) use a new load each time (c) guess, do not measure (d) test it only once
14. 14.🧪 The first prototype held 280 g. After the team improved it, the new prototype held 370 g. How many more grams did it hold?
15. 15.🧪 In a fair test, how many things do you change at a time? (a) all of them (b) one (c) two (d) none
16. 16.True or false: to test it only once is good testing. (a) False (b) True
17. 17.🔢 To build and test a straw bridge, which is the LAST step? (a) choose and draw one (b) strengthen the weak part (c) build it with straws (d) load it with coins
18. 18.🧪 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
19. 19.🔢 To build and test a straw bridge, which is the FIRST step? (a) read the challenge rules (b) load it with coins (c) build it with straws (d) sketch three ideas
20. 20.🧪 The first prototype held 70 g. After the team improved it, the new prototype held 100 g. How many more grams did it hold?
21. 21.True or false: to repeat each test is poor testing. (a) True (b) False
22. 22.🔍 Which is the odd one out? (a) hide a failed test (b) change only one thing (c) record every result (d) use the same load
23. 23.🧪 Why repeat a test three times? (a) it looks busy (b) the first is wrong (c) to use more paper (d) to get reliable results
24. 24.🔍 Which is the odd one out? (a) change lots at once (b) measure the same way (c) repeat each test (d) change only one thing
25. 25.🔢 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) sketch three ideas (d) build it with straws
26. 26.True or false: to use the same load is poor testing. (a) True (b) False
27. 27.True or false: to change lots at once is poor testing. (a) True (b) False
28. 28.🔍 Which is the odd one out? (a) test it only once (b) record every result (c) repeat each test (d) use the same load
29. 29.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “choose and draw one”? (a) read the challenge rules (b) choose and draw one
30. 30.🔢 To build and test a straw bridge, which comes first: “choose and draw one” or “build it with straws”? (a) build it with straws (b) choose and draw one
31. 31.🔍 Which is the odd one out? (a) use a new load each time (b) test it only once (c) hide a failed test (d) repeat each test
32. 32.🧪 Is it good or poor testing to repeat each test? (a) poor testing (b) good testing
33. 33.🧪 A paper bridge was tested three times. It held 370 g, 260 g and 240 g. What is the mean (average) load it held, in grams?
34. 34.True or false: to record every result is poor testing. (a) True (b) False
35. 35.🧪 The first prototype held 260 g. After the team improved it, the new prototype held 330 g. How many more grams did it hold?
36. 36.🧪 The first prototype held 200 g. After the team improved it, the new prototype held 320 g. How many more grams did it hold?
37. 37.True or false: to test it only once is poor testing. (a) True (b) False
38. 38.True or false: to record every result is good testing. (a) False (b) True
39. 39.🧪 The first prototype held 140 g. After the team improved it, the new prototype held 200 g. How many more grams did it hold?
40. 40.🧪 Is it good or poor testing to guess, do not measure? (a) poor testing (b) good testing

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