Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 407 · 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 50 g. After the team improved it, the new prototype held 170 g. How many more grams did it hold?
2. 2.True or false: to change only one thing is poor testing. (a) True (b) False
3. 3.🧪 In a fair test, how many things do you change at a time? (a) all of them (b) two (c) none (d) one
4. 4.🔢 To build and test a straw bridge, what comes right after “choose and draw one”? (a) sketch three ideas (b) read the challenge rules (c) strengthen the weak part (d) build it with straws
5. 5.🔢 To build and test a straw bridge, which is the FIRST step? (a) build it with straws (b) sketch three ideas (c) read the challenge rules (d) choose and draw one
6. 6.🧪 Is it good or poor testing to use a new load each time? (a) poor testing (b) good testing
7. 7.🧪 A paper bridge was tested three times. It held 150 g, 70 g and 230 g. What is the mean (average) load it held, in grams?
8. 8.🧪 A paper bridge was tested three times. It held 320 g, 230 g and 140 g. What is the mean (average) load it held, in grams?
9. 9.🧪 A paper bridge was tested three times. It held 330 g, 280 g and 320 g. What is the mean (average) load it held, in grams?
10. 10.🧪 Why repeat a test three times? (a) to get reliable results (b) the first is wrong (c) it looks busy (d) to use more paper
11. 11.True or false: to record every result is good testing. (a) True (b) False
12. 12.🧪 What is a prototype? (a) a broken part (b) the final product (c) a sales poster (d) an early test model
13. 13.True or false: to skip writing results is good testing. (a) True (b) False
14. 14.🧪 Why do engineers make prototypes? (a) to test ideas cheaply (b) to decorate a room (c) to sell them at once (d) to avoid testing
15. 15.🧪 Is it good or poor testing to change lots at once? (a) poor testing (b) good testing
16. 16.🔢 To build and test a straw bridge, what comes right after “load it with coins”? (a) choose and draw one (b) build it with straws (c) read the challenge rules (d) strengthen the weak part
17. 17.🧪 A paper bridge was tested three times. It held 330 g, 170 g and 190 g. What is the mean (average) load it held, in grams?
18. 18.🧪 A paper bridge was tested three times. It held 220 g, 180 g and 200 g. What is the mean (average) load it held, in grams?
19. 19.🔍 Which is the odd one out? (a) use a new load each time (b) hide a failed test (c) skip writing results (d) use the same load
20. 20.🧪 Three prototype bridges were tested with the same method. Design A held 220 g, design B held 120 g and design C held 170 g. Which design was the strongest? (a) design B (b) design C (c) design A
21. 21.🔍 Which is the odd one out? (a) repeat each test (b) change lots at once (c) change only one thing (d) measure the same way
22. 22.🧪 A paper bridge was tested three times. It held 190 g, 160 g and 160 g. What is the mean (average) load it held, in grams?
23. 23.🔢 To build and test a straw bridge, which is the LAST step? (a) read the challenge rules (b) sketch three ideas (c) choose and draw one (d) strengthen the weak part
24. 24.🧪 Is it good or poor testing to change only one thing? (a) good testing (b) poor testing
25. 25.🧪 Is it good or poor testing to use the same load? (a) good testing (b) poor testing
26. 26.🧪 The first prototype held 280 g. After the team improved it, the new prototype held 390 g. How many more grams did it hold?
27. 27.True or false: to use the same load is good testing. (a) True (b) False
28. 28.🧪 Is it good or poor testing to skip writing results? (a) good testing (b) poor testing
29. 29.🧪 Is it good or poor testing to repeat each test? (a) poor testing (b) good testing
30. 30.🔍 Which is the odd one out? (a) hide a failed test (b) use a new load each time (c) guess, do not measure (d) repeat each test
31. 31.🧪 A paper bridge was tested three times. It held 330 g, 280 g and 380 g. What is the mean (average) load it held, in grams?
32. 32.🧪 Is it good or poor testing to record every result? (a) good testing (b) poor testing
33. 33.🔢 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
34. 34.🧪 Is it good or poor testing to hide a failed test? (a) good testing (b) poor testing
35. 35.🧪 The first prototype held 270 g. After the team improved it, the new prototype held 290 g. How many more grams did it hold?
36. 36.🧪 The first prototype held 120 g. After the team improved it, the new prototype held 150 g. How many more grams did it hold?
37. 37.True or false: to record every result is poor testing. (a) True (b) False
38. 38.True or false: to use the same load is poor testing. (a) False (b) True
39. 39.🔢 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
40. 40.🧪 A paper bridge was tested three times. It held 280 g, 250 g and 220 g. What is the mean (average) load it held, in grams?

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