Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 929 · 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.🧪 The first prototype held 50 g. After the team improved it, the new prototype held 80 g. How many more grams did it hold?
2. 2.🧪 Three prototype bridges were tested with the same method. Design A held 100 g, design B held 200 g and design C held 150 g. Which design was the weakest? (a) design B (b) design C (c) design A
3. 3.🧪 Is it good or poor testing to change only one thing? (a) poor testing (b) good testing
4. 4.🧪 Is it good or poor testing to change lots at once? (a) good testing (b) poor testing
5. 5.🔍 Which is the odd one out? (a) measure the same way (b) use the same load (c) test it only once (d) record every result
6. 6.🧪 Is it good or poor testing to hide a failed test? (a) good testing (b) poor testing
7. 7.🔢 To build and test a straw bridge, which is the FIRST step? (a) sketch three ideas (b) strengthen the weak part (c) read the challenge rules (d) choose and draw one
8. 8.🧪 What is a prototype? (a) an early test model (b) a sales poster (c) the final product (d) a broken part
9. 9.🧪 The first prototype held 170 g. After the team improved it, the new prototype held 180 g. How many more grams did it hold?
10. 10.🧪 In a fair test, how many things do you change at a time? (a) none (b) two (c) one (d) all of them
11. 11.🧪 Is it good or poor testing to skip writing results? (a) good testing (b) poor testing
12. 12.🧪 Is it good or poor testing to use a new load each time? (a) poor testing (b) good testing
13. 13.🔢 To build and test a straw bridge, which is the LAST step? (a) choose and draw one (b) strengthen the weak part (c) load it with coins (d) sketch three ideas
14. 14.🧪 Three prototype bridges were tested with the same method. Design A held 140 g, design B held 190 g and design C held 240 g. Which design was the strongest? (a) design C (b) design B (c) design A
15. 15.True or false: to change only one thing is poor testing. (a) True (b) False
16. 16.🧪 Why do engineers make prototypes? (a) to avoid testing (b) to decorate a room (c) to test ideas cheaply (d) to sell them at once
17. 17.🧪 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 B (b) design A (c) design C
18. 18.🔍 Which is the odd one out? (a) use a new load each time (b) test it only once (c) change only one thing (d) change lots at once
19. 19.🧪 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
20. 20.True or false: to test it only once is poor testing. (a) True (b) False
21. 21.🔍 Which is the odd one out? (a) use the same load (b) hide a failed test (c) change lots at once (d) test it only once
22. 22.🧪 Three prototype bridges were tested with the same method. Design A held 210 g, design B held 160 g and design C held 110 g. Which design was the strongest? (a) design C (b) design B (c) design A
23. 23.🧪 Is it good or poor testing to record every result? (a) good testing (b) poor testing
24. 24.🧪 A paper bridge was tested three times. It held 280 g, 100 g and 190 g. What is the mean (average) load it held, in grams?
25. 25.True or false: to change lots at once is good testing. (a) False (b) True
26. 26.True or false: to measure the same way is good testing. (a) False (b) True
27. 27.🧪 The first prototype held 140 g. After the team improved it, the new prototype held 280 g. How many more grams did it hold?
28. 28.🧪 The first prototype held 110 g. After the team improved it, the new prototype held 160 g. How many more grams did it hold?
29. 29.True or false: to use a new load each time is poor testing. (a) False (b) True
30. 30.🧪 A paper bridge was tested three times. It held 290 g, 200 g and 320 g. What is the mean (average) load it held, in grams?
31. 31.True or false: to repeat each test is good testing. (a) False (b) True
32. 32.🧪 Three prototype bridges were tested with the same method. Design A held 380 g, design B held 280 g and design C held 330 g. Which design was the weakest? (a) design B (b) design A (c) design C
33. 33.True or false: to change only one thing is good testing. (a) False (b) True
34. 34.True or false: to test it only once is good testing. (a) True (b) False
35. 35.🔍 Which is the odd one out? (a) skip writing results (b) record every result (c) change lots at once (d) hide a failed test
36. 36.🧪 Is it good or poor testing to repeat each test? (a) poor testing (b) good testing
37. 37.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “strengthen the weak part”? (a) read the challenge rules (b) strengthen the weak part
38. 38.🧪 A paper bridge was tested three times. It held 260 g, 100 g and 150 g. What is the mean (average) load it held, in grams?
39. 39.🧪 Three prototype bridges were tested with the same method. Design A held 280 g, design B held 330 g and design C held 230 g. Which design was the weakest? (a) design A (b) design B (c) design C
40. 40.🧪 Three prototype bridges were tested with the same method. Design A held 340 g, design B held 240 g and design C held 290 g. Which design was the weakest? (a) design B (b) design C (c) design A

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