Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 200 · 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 use the same load is good testing. (a) False (b) True
2. 2.🧪 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 B (b) design C (c) design A
3. 3.🧪 Three prototype bridges were tested with the same method. Design A held 110 g, design B held 210 g and design C held 160 g. Which design was the weakest? (a) design C (b) design A (c) design B
4. 4.🧪 Is it good or poor testing to test it only once? (a) poor testing (b) good testing
5. 5.True or false: to record every result is good testing. (a) True (b) False
6. 6.🧪 Why do engineers make prototypes? (a) to decorate a room (b) to sell them at once (c) to test ideas cheaply (d) to avoid testing
7. 7.🧪 Three prototype bridges were tested with the same method. Design A held 350 g, design B held 400 g and design C held 300 g. Which design was the strongest? (a) design C (b) design B (c) design A
8. 8.🧪 What is a prototype? (a) the final product (b) a broken part (c) an early test model (d) a sales poster
9. 9.True or false: to measure the same way is good testing. (a) True (b) False
10. 10.🧪 Is it good or poor testing to change lots at once? (a) good testing (b) poor testing
11. 11.🔢 To build and test a straw bridge, which comes first: “build it with straws” or “strengthen the weak part”? (a) strengthen the weak part (b) build it with straws
12. 12.🧪 A paper bridge was tested three times. It held 440 g, 280 g and 300 g. What is the mean (average) load it held, in grams?
13. 13.🔢 To build and test a straw bridge, which comes first: “choose and draw one” or “read the challenge rules”? (a) read the challenge rules (b) choose and draw one
14. 14.True or false: to repeat each test is poor testing. (a) True (b) False
15. 15.🔍 Which is the odd one out? (a) guess, do not measure (b) change lots at once (c) use the same load (d) test it only once
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.🧪 The first prototype held 90 g. After the team improved it, the new prototype held 210 g. How many more grams did it hold?
18. 18.🧪 The first prototype held 80 g. After the team improved it, the new prototype held 210 g. How many more grams did it hold?
19. 19.🧪 A paper bridge was tested three times. It held 330 g, 180 g and 180 g. What is the mean (average) load it held, in grams?
20. 20.🔍 Which is the odd one out? (a) change only one thing (b) measure the same way (c) guess, do not measure (d) repeat each test
21. 21.🧪 Three prototype bridges were tested with the same method. Design A held 300 g, design B held 250 g and design C held 350 g. Which design was the weakest? (a) design B (b) design A (c) design C
22. 22.True or false: to guess, do not measure is poor testing. (a) False (b) True
23. 23.🧪 Is it good or poor testing to change only one thing? (a) poor testing (b) good testing
24. 24.🔢 To build and test a straw bridge, which is the FIRST step? (a) sketch three ideas (b) load it with coins (c) choose and draw one (d) read the challenge rules
25. 25.🔍 Which is the odd one out? (a) hide a failed test (b) test it only once (c) measure the same way (d) use a new load each time
26. 26.🧪 Three prototype bridges were tested with the same method. Design A held 300 g, design B held 350 g and design C held 250 g. Which design was the strongest? (a) design C (b) design B (c) design A
27. 27.🧪 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
28. 28.🧪 Three prototype bridges were tested with the same method. Design A held 140 g, design B held 240 g and design C held 190 g. Which design was the strongest? (a) design A (b) design B (c) design C
29. 29.🧪 In a fair test, how many things do you change at a time? (a) all of them (b) two (c) none (d) one
30. 30.🧪 Is it good or poor testing to hide a failed test? (a) poor testing (b) good testing
31. 31.🧪 The first prototype held 50 g. After the team improved it, the new prototype held 200 g. How many more grams did it hold?
32. 32.True or false: to measure the same way is poor testing. (a) False (b) True
33. 33.🧪 The first prototype held 120 g. After the team improved it, the new prototype held 200 g. How many more grams did it hold?
34. 34.🔍 Which is the odd one out? (a) skip writing results (b) use a new load each time (c) repeat each test (d) change lots at once
35. 35.🔍 Which is the odd one out? (a) hide a failed test (b) record every result (c) repeat each test (d) change only one thing
36. 36.🧪 Three prototype bridges were tested with the same method. Design A held 110 g, design B held 210 g and design C held 160 g. Which design was the strongest? (a) design C (b) design A (c) design B
37. 37.🧪 Is it good or poor testing to use a new load each time? (a) poor testing (b) good testing
38. 38.🧪 Three prototype bridges were tested with the same method. Design A held 360 g, design B held 260 g and design C held 310 g. Which design was the weakest? (a) design C (b) design A (c) design B
39. 39.🔍 Which is the odd one out? (a) measure the same way (b) change only one thing (c) record every result (d) use a new load each time
40. 40.True or false: to change lots at once is poor testing. (a) False (b) True

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