Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 771 · 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 change lots at once is good testing. (a) True (b) False
2. 2.🔢 To build and test a straw bridge, which comes first: “sketch three ideas” or “load it with coins”? (a) sketch three ideas (b) load it with coins
3. 3.True or false: to record every result is poor testing. (a) False (b) True
4. 4.🧪 Is it good or poor testing to change only one thing? (a) poor testing (b) good testing
5. 5.🧪 The first prototype held 270 g. After the team improved it, the new prototype held 350 g. How many more grams did it hold?
6. 6.True or false: to change lots at once is poor testing. (a) True (b) False
7. 7.🧪 Why do engineers make prototypes? (a) to avoid testing (b) to sell them at once (c) to test ideas cheaply (d) to decorate a room
8. 8.True or false: to use the same load is good testing. (a) False (b) True
9. 9.🧪 In a fair test, how many things do you change at a time? (a) one (b) all of them (c) none (d) two
10. 10.🧪 The first prototype held 90 g. After the team improved it, the new prototype held 100 g. How many more grams did it hold?
11. 11.🧪 What is a prototype? (a) a sales poster (b) a broken part (c) an early test model (d) the final product
12. 12.🔍 Which is the odd one out? (a) use a new load each time (b) measure the same way (c) test it only once (d) guess, do not measure
13. 13.🔢 To build and test a straw bridge, which is the FIRST step? (a) choose and draw one (b) sketch three ideas (c) read the challenge rules (d) load it with coins
14. 14.🧪 Is it good or poor testing to guess, do not measure? (a) poor testing (b) good testing
15. 15.🔍 Which is the odd one out? (a) record every result (b) change lots at once (c) change only one thing (d) use the same load
16. 16.🔢 To build and test a straw bridge, which comes first: “choose and draw one” or “strengthen the weak part”? (a) choose and draw one (b) strengthen the weak part
17. 17.🧪 The first prototype held 240 g. After the team improved it, the new prototype held 250 g. How many more grams did it hold?
18. 18.🧪 Is it good or poor testing to use the same load? (a) poor testing (b) good testing
19. 19.🧪 The first prototype held 170 g. After the team improved it, the new prototype held 260 g. How many more grams did it hold?
20. 20.🔍 Which is the odd one out? (a) measure the same way (b) use the same load (c) record every result (d) use a new load each time
21. 21.True or false: to skip writing results is poor testing. (a) False (b) True
22. 22.True or false: to repeat each test is good testing. (a) True (b) False
23. 23.🧪 A paper bridge was tested three times. It held 340 g, 160 g and 250 g. What is the mean (average) load it held, in grams?
24. 24.True or false: to measure the same way is poor testing. (a) True (b) False
25. 25.🧪 Three prototype bridges were tested with the same method. Design A held 210 g, design B held 260 g and design C held 310 g. Which design was the weakest? (a) design A (b) design B (c) design C
26. 26.🧪 The first prototype held 240 g. After the team improved it, the new prototype held 390 g. How many more grams did it hold?
27. 27.🧪 A paper bridge was tested three times. It held 220 g, 120 g and 140 g. What is the mean (average) load it held, in grams?
28. 28.🧪 Is it good or poor testing to test it only once? (a) good testing (b) poor testing
29. 29.🧪 Is it good or poor testing to skip writing results? (a) poor testing (b) good testing
30. 30.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “sketch three ideas”? (a) read the challenge rules (b) sketch three ideas
31. 31.🔍 Which is the odd one out? (a) skip writing results (b) change lots at once (c) use the same load (d) hide a failed test
32. 32.🧪 The first prototype held 270 g. After the team improved it, the new prototype held 390 g. How many more grams did it hold?
33. 33.🧪 The first prototype held 250 g. After the team improved it, the new prototype held 320 g. How many more grams did it hold?
34. 34.🧪 The first prototype held 150 g. After the team improved it, the new prototype held 160 g. How many more grams did it hold?
35. 35.🧪 Three prototype bridges were tested with the same method. Design A held 260 g, design B held 360 g and design C held 310 g. Which design was the weakest? (a) design A (b) design B (c) design C
36. 36.🧪 The first prototype held 150 g. After the team improved it, the new prototype held 310 g. How many more grams did it hold?
37. 37.🧪 The first prototype held 50 g. After the team improved it, the new prototype held 180 g. How many more grams did it hold?
38. 38.🧪 Is it good or poor testing to measure the same way? (a) poor testing (b) good testing
39. 39.🧪 A paper bridge was tested three times. It held 190 g, 140 g and 120 g. What is the mean (average) load it held, in grams?
40. 40.🧪 A paper bridge was tested three times. It held 180 g, 130 g and 230 g. What is the mean (average) load it held, in grams?

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