Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 525 · 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 poor testing. (a) True (b) False
2. 2.🧪 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
3. 3.🔢 To build and test a straw bridge, what comes right after “choose and draw one”? (a) read the challenge rules (b) build it with straws (c) sketch three ideas (d) strengthen the weak part
4. 4.True or false: to repeat each test is poor testing. (a) False (b) True
5. 5.🧪 The first prototype held 190 g. After the team improved it, the new prototype held 280 g. How many more grams did it hold?
6. 6.🧪 Is it good or poor testing to use a new load each time? (a) poor testing (b) good testing
7. 7.🔍 Which is the odd one out? (a) change only one thing (b) use a new load each time (c) measure the same way (d) use the same load
8. 8.🧪 Is it good or poor testing to record every result? (a) poor testing (b) good testing
9. 9.🧪 Three prototype bridges were tested with the same method. Design A held 260 g, design B held 210 g and design C held 310 g. Which design was the strongest? (a) design B (b) design C (c) design A
10. 10.🧪 Why do engineers make prototypes? (a) to decorate a room (b) to sell them at once (c) to avoid testing (d) to test ideas cheaply
11. 11.True or false: to change lots at once is good testing. (a) True (b) False
12. 12.🔍 Which is the odd one out? (a) repeat each test (b) use the same load (c) test it only once (d) change only one thing
13. 13.True or false: to record every result is good testing. (a) False (b) True
14. 14.🧪 A paper bridge was tested three times. It held 400 g, 280 g and 220 g. What is the mean (average) load it held, in grams?
15. 15.True or false: to guess, do not measure is poor testing. (a) True (b) False
16. 16.🔍 Which is the odd one out? (a) test it only once (b) use a new load each time (c) skip writing results (d) repeat each test
17. 17.True or false: to measure the same way is poor testing. (a) False (b) True
18. 18.🧪 Is it good or poor testing to repeat each test? (a) poor testing (b) good testing
19. 19.🔢 To build and test a straw bridge, which is the FIRST step? (a) read the challenge rules (b) build it with straws (c) choose and draw one (d) load it with coins
20. 20.🧪 Is it good or poor testing to measure the same way? (a) poor testing (b) good testing
21. 21.True or false: to record every result is poor testing. (a) False (b) True
22. 22.🧪 A paper bridge was tested three times. It held 170 g, 130 g and 210 g. What is the mean (average) load it held, in grams?
23. 23.🧪 A paper bridge was tested three times. It held 400 g, 270 g and 350 g. What is the mean (average) load it held, in grams?
24. 24.🧪 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
25. 25.🧪 A paper bridge was tested three times. It held 200 g, 70 g and 180 g. What is the mean (average) load it held, in grams?
26. 26.🔍 Which is the odd one out? (a) record every result (b) measure the same way (c) hide a failed test (d) repeat each test
27. 27.🧪 A paper bridge was tested three times. It held 410 g, 300 g and 250 g. What is the mean (average) load it held, in grams?
28. 28.🧪 A paper bridge was tested three times. It held 160 g, 100 g and 220 g. What is the mean (average) load it held, in grams?
29. 29.🧪 Three prototype bridges were tested with the same method. Design A held 340 g, design B held 290 g and design C held 240 g. Which design was the weakest? (a) design C (b) design B (c) design A
30. 30.🧪 Three prototype bridges were tested with the same method. Design A held 200 g, design B held 100 g and design C held 150 g. Which design was the weakest? (a) design C (b) design B (c) design A
31. 31.🧪 A paper bridge was tested three times. It held 450 g, 270 g and 330 g. What is the mean (average) load it held, in grams?
32. 32.True or false: to measure the same way is good testing. (a) False (b) True
33. 33.🧪 Three prototype bridges were tested with the same method. Design A held 270 g, design B held 320 g and design C held 370 g. Which design was the weakest? (a) design B (b) design A (c) design C
34. 34.🧪 Is it good or poor testing to change only one thing? (a) poor testing (b) good testing
35. 35.🧪 A paper bridge was tested three times. It held 210 g, 120 g and 270 g. What is the mean (average) load it held, in grams?
36. 36.🧪 A paper bridge was tested three times. It held 320 g, 190 g and 270 g. What is the mean (average) load it held, in grams?
37. 37.🔍 Which is the odd one out? (a) repeat each test (b) use the same load (c) change only one thing (d) guess, do not measure
38. 38.True or false: to change only one thing is good testing. (a) False (b) True
39. 39.🔢 To build and test a straw bridge, which comes first: “build it with straws” or “choose and draw one”? (a) choose and draw one (b) build it with straws
40. 40.🧪 Is it good or poor testing to guess, do not measure? (a) good testing (b) poor testing

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