Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 267 · 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.True or false: to guess, do not measure is good testing. (a) False (b) True
2. 2.🧪 A paper bridge was tested three times. It held 320 g, 250 g and 360 g. What is the mean (average) load it held, in grams?
3. 3.🔍 Which is the odd one out? (a) record every result (b) test it only once (c) guess, do not measure (d) change lots at once
4. 4.True or false: to test it only once is poor testing. (a) False (b) True
5. 5.🧪 Is it good or poor testing to change only one thing? (a) poor testing (b) good testing
6. 6.🔢 To build and test a straw bridge, what comes right after “sketch three ideas”? (a) choose and draw one (b) build it with straws (c) read the challenge rules (d) strengthen the weak part
7. 7.🧪 Three prototype bridges were tested with the same method. Design A held 100 g, design B held 150 g and design C held 200 g. Which design was the strongest? (a) design A (b) design B (c) design C
8. 8.🔢 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
9. 9.🧪 In a fair test, how many things do you change at a time? (a) none (b) two (c) one (d) all of them
10. 10.🔍 Which is the odd one out? (a) repeat each test (b) change lots at once (c) measure the same way (d) use the same load
11. 11.🧪 Is it good or poor testing to test it only once? (a) poor testing (b) good testing
12. 12.🧪 Is it good or poor testing to skip writing results? (a) good testing (b) poor testing
13. 13.🧪 Is it good or poor testing to hide a failed test? (a) poor testing (b) good testing
14. 14.🧪 A paper bridge was tested three times. It held 310 g, 270 g and 290 g. What is the mean (average) load it held, in grams?
15. 15.🧪 Is it good or poor testing to use the same load? (a) good testing (b) poor testing
16. 16.🔢 To build and test a straw bridge, which comes first: “strengthen the weak part” or “sketch three ideas”? (a) strengthen the weak part (b) sketch three ideas
17. 17.True or false: to use a new load each time is good testing. (a) False (b) True
18. 18.🧪 Is it good or poor testing to guess, do not measure? (a) poor testing (b) good testing
19. 19.🧪 What is a prototype? (a) a sales poster (b) an early test model (c) a broken part (d) the final product
20. 20.🧪 Is it good or poor testing to repeat each test? (a) poor testing (b) good testing
21. 21.🧪 The first prototype held 250 g. After the team improved it, the new prototype held 310 g. How many more grams did it hold?
22. 22.🧪 Three prototype bridges were tested with the same method. Design A held 110 g, design B held 160 g and design C held 210 g. Which design was the weakest? (a) design A (b) design B (c) design C
23. 23.🧪 A paper bridge was tested three times. It held 270 g, 90 g and 210 g. What is the mean (average) load it held, in grams?
24. 24.🧪 The first prototype held 220 g. After the team improved it, the new prototype held 240 g. How many more grams did it hold?
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) use a new load each time (b) hide a failed test (c) measure the same way (d) guess, do not measure
27. 27.🧪 Why repeat a test three times? (a) it looks busy (b) to get reliable results (c) to use more paper (d) the first is wrong
28. 28.🔍 Which is the odd one out? (a) hide a failed test (b) record every result (c) measure the same way (d) change only one thing
29. 29.True or false: to hide a failed test is poor testing. (a) True (b) False
30. 30.🔢 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
31. 31.True or false: to change only one thing is poor testing. (a) False (b) True
32. 32.🧪 The first prototype held 60 g. After the team improved it, the new prototype held 100 g. How many more grams did it hold?
33. 33.🧪 Three prototype bridges were tested with the same method. Design A held 270 g, design B held 220 g and design C held 170 g. Which design was the strongest? (a) design A (b) design B (c) design C
34. 34.🧪 Is it good or poor testing to record every result? (a) good testing (b) poor testing
35. 35.True or false: to record every result is good testing. (a) False (b) True
36. 36.🔍 Which is the odd one out? (a) test it only once (b) repeat each test (c) guess, do not measure (d) hide a failed test
37. 37.🔍 Which is the odd one out? (a) repeat each test (b) change only one thing (c) record every result (d) test it only once
38. 38.🧪 Why do engineers make prototypes? (a) to decorate a room (b) to avoid testing (c) to sell them at once (d) to test ideas cheaply
39. 39.🧪 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 strongest? (a) design C (b) design A (c) design B
40. 40.🔢 To build and test a straw bridge, which is the FIRST step? (a) load it with coins (b) read the challenge rules (c) build it with straws (d) sketch three ideas

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