Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 530 · 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.🧪 In a fair test, how many things do you change at a time? (a) all of them (b) two (c) none (d) one
2. 2.True or false: to use a new load each time is poor testing. (a) True (b) False
3. 3.True or false: to measure the same way is good testing. (a) True (b) False
4. 4.🧪 Why do engineers make prototypes? (a) to avoid testing (b) to decorate a room (c) to sell them at once (d) to test ideas cheaply
5. 5.🧪 Is it good or poor testing to measure the same way? (a) good testing (b) poor testing
6. 6.🧪 Is it good or poor testing to test it only once? (a) poor testing (b) good testing
7. 7.True or false: to test it only once is poor testing. (a) True (b) False
8. 8.🧪 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
9. 9.True or false: to skip writing results is good testing. (a) False (b) True
10. 10.🧪 Three prototype bridges were tested with the same method. Design A held 210 g, design B held 110 g and design C held 160 g. Which design was the weakest? (a) design C (b) design A (c) design B
11. 11.True or false: to use the same load is good testing. (a) True (b) False
12. 12.🧪 Is it good or poor testing to skip writing results? (a) poor testing (b) good testing
13. 13.🧪 What is a prototype? (a) a broken part (b) the final product (c) an early test model (d) a sales poster
14. 14.🧪 Three prototype bridges were tested with the same method. Design A held 280 g, design B held 230 g and design C held 180 g. Which design was the weakest? (a) design B (b) design C (c) design A
15. 15.🧪 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
16. 16.🔢 To build and test a straw bridge, what comes right after “read the challenge rules”? (a) strengthen the weak part (b) sketch three ideas (c) choose and draw one (d) load it with coins
17. 17.🔍 Which is the odd one out? (a) record every result (b) repeat each test (c) change only one thing (d) use a new load each time
18. 18.True or false: to repeat each test is poor testing. (a) True (b) False
19. 19.🔢 To build and test a straw bridge, which comes first: “build it with straws” or “read the challenge rules”? (a) read the challenge rules (b) build it with straws
20. 20.🧪 Three prototype bridges were tested with the same method. Design A held 180 g, design B held 130 g and design C held 230 g. Which design was the strongest? (a) design A (b) design B (c) design C
21. 21.🧪 Is it good or poor testing to repeat each test? (a) good testing (b) poor testing
22. 22.True or false: to record every result is good testing. (a) False (b) True
23. 23.🔍 Which is the odd one out? (a) change lots at once (b) skip writing results (c) measure the same way (d) test it only once
24. 24.🔍 Which is the odd one out? (a) change lots at once (b) guess, do not measure (c) skip writing results (d) repeat each test
25. 25.🧪 Three prototype bridges were tested with the same method. Design A held 120 g, design B held 220 g and design C held 170 g. Which design was the strongest? (a) design C (b) design A (c) design B
26. 26.🧪 The first prototype held 220 g. After the team improved it, the new prototype held 420 g. How many more grams did it hold?
27. 27.🔢 To build and test a straw bridge, which is the FIRST step? (a) sketch three ideas (b) read the challenge rules (c) choose and draw one (d) load it with coins
28. 28.🔢 To build and test a straw bridge, which comes first: “build it with straws” or “sketch three ideas”? (a) sketch three ideas (b) build it with straws
29. 29.🧪 Three prototype bridges were tested with the same method. Design A held 200 g, design B held 250 g and design C held 150 g. Which design was the strongest? (a) design C (b) design A (c) design B
30. 30.🧪 Three prototype bridges were tested with the same method. Design A held 320 g, design B held 270 g and design C held 370 g. Which design was the weakest? (a) design B (b) design A (c) design C
31. 31.🧪 A paper bridge was tested three times. It held 340 g, 290 g and 330 g. What is the mean (average) load it held, in grams?
32. 32.🧪 Is it good or poor testing to change lots at once? (a) poor testing (b) good testing
33. 33.🧪 Is it good or poor testing to record every result? (a) good testing (b) poor testing
34. 34.🧪 A paper bridge was tested three times. It held 330 g, 210 g and 240 g. What is the mean (average) load it held, in grams?
35. 35.True or false: to repeat each test is good testing. (a) False (b) True
36. 36.🧪 Three prototype bridges were tested with the same method. Design A held 250 g, design B held 350 g and design C held 300 g. Which design was the strongest? (a) design A (b) design C (c) design B
37. 37.🧪 A paper bridge was tested three times. It held 230 g, 200 g and 170 g. What is the mean (average) load it held, in grams?
38. 38.🧪 Three prototype bridges were tested with the same method. Design A held 370 g, design B held 320 g and design C held 270 g. Which design was the strongest? (a) design A (b) design C (c) design B
39. 39.🔢 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
40. 40.🔍 Which is the odd one out? (a) change only one thing (b) record every result (c) use the same load (d) test it only once

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