Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 454 · 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 240 g. After the team improved it, the new prototype held 370 g. How many more grams did it hold?
2. 2.🧪 In a fair test, how many things do you change at a time? (a) all of them (b) one (c) two (d) none
3. 3.🧪 Why repeat a test three times? (a) the first is wrong (b) it looks busy (c) to get reliable results (d) to use more paper
4. 4.True or false: to repeat each test is poor testing. (a) True (b) False
5. 5.🔢 To build and test a straw bridge, which comes first: “strengthen the weak part” or “read the challenge rules”? (a) read the challenge rules (b) strengthen the weak part
6. 6.🧪 Is it good or poor testing to record every result? (a) good testing (b) poor testing
7. 7.🧪 Is it good or poor testing to use a new load each time? (a) poor testing (b) good testing
8. 8.🧪 The first prototype held 180 g. After the team improved it, the new prototype held 210 g. How many more grams did it hold?
9. 9.🧪 Why do engineers make prototypes? (a) to sell them at once (b) to decorate a room (c) to avoid testing (d) to test ideas cheaply
10. 10.🔍 Which is the odd one out? (a) measure the same way (b) record every result (c) guess, do not measure (d) use the same load
11. 11.🔢 To build and test a straw bridge, what comes right after “build it with straws”? (a) read the challenge rules (b) sketch three ideas (c) strengthen the weak part (d) load it with coins
12. 12.🔍 Which is the odd one out? (a) change lots at once (b) measure the same way (c) repeat each test (d) use the same load
13. 13.🧪 The first prototype held 300 g. After the team improved it, the new prototype held 390 g. How many more grams did it hold?
14. 14.🧪 Is it good or poor testing to change lots at once? (a) good testing (b) poor testing
15. 15.🧪 The first prototype held 240 g. After the team improved it, the new prototype held 380 g. How many more grams did it hold?
16. 16.True or false: to hide a failed test is poor testing. (a) False (b) True
17. 17.🧪 Three prototype bridges were tested with the same method. Design A held 190 g, design B held 240 g and design C held 140 g. Which design was the weakest? (a) design A (b) design C (c) design B
18. 18.🧪 The first prototype held 180 g. After the team improved it, the new prototype held 270 g. How many more grams did it hold?
19. 19.🔢 To build and test a straw bridge, which is the FIRST step? (a) strengthen the weak part (b) sketch three ideas (c) choose and draw one (d) read the challenge rules
20. 20.🔍 Which is the odd one out? (a) repeat each test (b) skip writing results (c) guess, do not measure (d) hide a failed test
21. 21.🧪 What is a prototype? (a) an early test model (b) a sales poster (c) a broken part (d) the final product
22. 22.🧪 Is it good or poor testing to change only one thing? (a) poor testing (b) good testing
23. 23.True or false: to hide a failed test is good testing. (a) True (b) False
24. 24.🧪 Is it good or poor testing to use the same load? (a) good testing (b) poor testing
25. 25.True or false: to record every result is poor testing. (a) False (b) True
26. 26.🧪 Is it good or poor testing to measure the same way? (a) good testing (b) poor testing
27. 27.🧪 A paper bridge was tested three times. It held 240 g, 160 g and 200 g. What is the mean (average) load it held, in grams?
28. 28.True or false: to repeat each test is good testing. (a) True (b) False
29. 29.🔢 To build and test a straw bridge, what comes right after “sketch three ideas”? (a) read the challenge rules (b) build it with straws (c) choose and draw one (d) load it with coins
30. 30.True or false: to skip writing results is poor testing. (a) False (b) True
31. 31.🧪 Three prototype bridges were tested with the same method. Design A held 150 g, design B held 200 g and design C held 250 g. Which design was the weakest? (a) design A (b) design C (c) design B
32. 32.🧪 Is it good or poor testing to hide a failed test? (a) poor testing (b) good testing
33. 33.🧪 The first prototype held 190 g. After the team improved it, the new prototype held 370 g. How many more grams did it hold?
34. 34.🧪 A paper bridge was tested three times. It held 300 g, 180 g and 120 g. What is the mean (average) load it held, in grams?
35. 35.🧪 The first prototype held 200 g. After the team improved it, the new prototype held 240 g. How many more grams did it hold?
36. 36.🧪 Is it good or poor testing to repeat each test? (a) good testing (b) poor testing
37. 37.🧪 Three prototype bridges were tested with the same method. Design A held 200 g, design B held 150 g and design C held 250 g. Which design was the strongest? (a) design C (b) design A (c) design B
38. 38.🔍 Which is the odd one out? (a) record every result (b) test it only once (c) change only one thing (d) measure the same way
39. 39.🧪 A paper bridge was tested three times. It held 330 g, 210 g and 360 g. What is the mean (average) load it held, in grams?
40. 40.🧪 Three prototype bridges were tested with the same method. Design A held 220 g, design B held 270 g and design C held 320 g. Which design was the weakest? (a) design A (b) design C (c) design B

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