Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 803 · 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.🧪 Is it good or poor testing to change only one thing? (a) poor testing (b) good testing
2. 2.🧪 A paper bridge was tested three times. It held 210 g, 160 g and 170 g. What is the mean (average) load it held, in grams?
3. 3.🧪 Why repeat a test three times? (a) to use more paper (b) it looks busy (c) to get reliable results (d) the first is wrong
4. 4.🧪 Is it good or poor testing to use a new load each time? (a) good testing (b) poor testing
5. 5.🧪 Is it good or poor testing to guess, do not measure? (a) poor testing (b) good testing
6. 6.🧪 Three prototype bridges were tested with the same method. Design A held 270 g, design B held 320 g and design C held 220 g. Which design was the strongest? (a) design A (b) design B (c) design C
7. 7.🧪 A paper bridge was tested three times. It held 340 g, 280 g and 340 g. What is the mean (average) load it held, in grams?
8. 8.🧪 Is it good or poor testing to measure the same way? (a) good testing (b) poor testing
9. 9.🔍 Which is the odd one out? (a) use the same load (b) measure the same way (c) change lots at once (d) record every result
10. 10.🧪 What is a prototype? (a) an early test model (b) a broken part (c) the final product (d) a sales poster
11. 11.🔍 Which is the odd one out? (a) change only one thing (b) test it only once (c) record every result (d) use the same load
12. 12.🧪 A paper bridge was tested three times. It held 300 g, 260 g and 220 g. What is the mean (average) load it held, in grams?
13. 13.🧪 A paper bridge was tested three times. It held 230 g, 140 g and 320 g. What is the mean (average) load it held, in grams?
14. 14.True or false: to change lots at once is poor testing. (a) False (b) True
15. 15.🔢 To build and test a straw bridge, which is the LAST step? (a) strengthen the weak part (b) read the challenge rules (c) build it with straws (d) choose and draw one
16. 16.True or false: to use a new load each time is good testing. (a) False (b) True
17. 17.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “build it with straws”? (a) build it with straws (b) read the challenge rules
18. 18.🔢 To build and test a straw bridge, which is the FIRST step? (a) sketch three ideas (b) strengthen the weak part (c) load it with coins (d) read the challenge rules
19. 19.True or false: to repeat each test is poor testing. (a) True (b) False
20. 20.True or false: to measure the same way is good testing. (a) True (b) False
21. 21.🧪 A paper bridge was tested three times. It held 420 g, 330 g and 300 g. What is the mean (average) load it held, in grams?
22. 22.🧪 Is it good or poor testing to record every result? (a) good testing (b) poor testing
23. 23.🧪 In a fair test, how many things do you change at a time? (a) all of them (b) none (c) two (d) one
24. 24.🧪 Three prototype bridges were tested with the same method. Design A held 160 g, design B held 210 g and design C held 260 g. Which design was the weakest? (a) design C (b) design B (c) design A
25. 25.True or false: to skip writing results is poor testing. (a) False (b) True
26. 26.🧪 The first prototype held 70 g. After the team improved it, the new prototype held 160 g. How many more grams did it hold?
27. 27.🔍 Which is the odd one out? (a) hide a failed test (b) use the same load (c) record every result (d) change only one thing
28. 28.🔢 To build and test a straw bridge, what comes right after “read the challenge rules”? (a) strengthen the weak part (b) build it with straws (c) sketch three ideas (d) choose and draw one
29. 29.True or false: to change only one thing is poor testing. (a) False (b) True
30. 30.🧪 A paper bridge was tested three times. It held 400 g, 290 g and 300 g. What is the mean (average) load it held, in grams?
31. 31.True or false: to guess, do not measure is good testing. (a) True (b) False
32. 32.🧪 Why do engineers make prototypes? (a) to decorate a room (b) to avoid testing (c) to sell them at once (d) to test ideas cheaply
33. 33.🧪 The first prototype held 140 g. After the team improved it, the new prototype held 170 g. How many more grams did it hold?
34. 34.🧪 The first prototype held 110 g. After the team improved it, the new prototype held 180 g. How many more grams did it hold?
35. 35.🔍 Which is the odd one out? (a) repeat each test (b) use a new load each time (c) measure the same way (d) record every result
36. 36.🔍 Which is the odd one out? (a) repeat each test (b) skip writing results (c) record every result (d) use the same load
37. 37.🧪 Is it good or poor testing to test it only once? (a) poor testing (b) good testing
38. 38.🔢 To build and test a straw bridge, what comes right after “build it with straws”? (a) strengthen the weak part (b) choose and draw one (c) load it with coins (d) read the challenge rules
39. 39.🔢 To build and test a straw bridge, what comes right after “load it with coins”? (a) build it with straws (b) choose and draw one (c) read the challenge rules (d) strengthen the weak part
40. 40.🧪 A paper bridge was tested three times. It held 290 g, 250 g and 270 g. What is the mean (average) load it held, in grams?

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