Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 966 · 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 measure the same way is good testing. (a) False (b) True
2. 2.🔍 Which is the odd one out? (a) change lots at once (b) repeat each test (c) skip writing results (d) hide a failed test
3. 3.🧪 Why do engineers make prototypes? (a) to sell them at once (b) to decorate a room (c) to test ideas cheaply (d) to avoid testing
4. 4.🧪 A paper bridge was tested three times. It held 230 g, 190 g and 210 g. What is the mean (average) load it held, in grams?
5. 5.🧪 What is a prototype? (a) the final product (b) a sales poster (c) a broken part (d) an early test model
6. 6.True or false: to use a new load each time is good testing. (a) True (b) False
7. 7.🧪 In a fair test, how many things do you change at a time? (a) one (b) all of them (c) none (d) two
8. 8.🧪 Is it good or poor testing to use a new load each time? (a) good testing (b) poor testing
9. 9.🧪 A paper bridge was tested three times. It held 230 g, 180 g and 190 g. What is the mean (average) load it held, in grams?
10. 10.🔢 To build and test a straw bridge, what comes right after “sketch three ideas”? (a) build it with straws (b) read the challenge rules (c) choose and draw one (d) strengthen the weak part
11. 11.🧪 The first prototype held 80 g. After the team improved it, the new prototype held 270 g. How many more grams did it hold?
12. 12.🔢 To build and test a straw bridge, which is the FIRST step? (a) sketch three ideas (b) choose and draw one (c) load it with coins (d) read the challenge rules
13. 13.🧪 Is it good or poor testing to record every result? (a) poor testing (b) good testing
14. 14.🔢 To build and test a straw bridge, which comes first: “choose and draw one” or “load it with coins”? (a) load it with coins (b) choose and draw one
15. 15.True or false: to test it only once is poor testing. (a) True (b) False
16. 16.🧪 A paper bridge was tested three times. It held 220 g, 210 g and 200 g. What is the mean (average) load it held, in grams?
17. 17.🧪 Three prototype bridges were tested with the same method. Design A held 220 g, design B held 320 g and design C held 270 g. Which design was the strongest? (a) design C (b) design A (c) design B
18. 18.🧪 The first prototype held 50 g. After the team improved it, the new prototype held 230 g. How many more grams did it hold?
19. 19.🧪 Three prototype bridges were tested with the same method. Design A held 240 g, design B held 290 g and design C held 340 g. Which design was the weakest? (a) design C (b) design B (c) design A
20. 20.🧪 A paper bridge was tested three times. It held 310 g, 160 g and 280 g. What is the mean (average) load it held, in grams?
21. 21.🔢 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
22. 22.🔍 Which is the odd one out? (a) test it only once (b) measure the same way (c) hide a failed test (d) skip writing results
23. 23.🧪 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 A (b) design C (c) design B
24. 24.🧪 A paper bridge was tested three times. It held 230 g, 110 g and 140 g. What is the mean (average) load it held, in grams?
25. 25.🧪 The first prototype held 230 g. After the team improved it, the new prototype held 320 g. How many more grams did it hold?
26. 26.True or false: to use the same load is good testing. (a) True (b) False
27. 27.True or false: to repeat each test is poor testing. (a) True (b) False
28. 28.🧪 Why repeat a test three times? (a) it looks busy (b) the first is wrong (c) to use more paper (d) to get reliable results
29. 29.🧪 Three prototype bridges were tested with the same method. Design A held 310 g, design B held 260 g and design C held 360 g. Which design was the strongest? (a) design C (b) design B (c) design A
30. 30.🧪 Three prototype bridges were tested with the same method. Design A held 250 g, design B held 300 g and design C held 350 g. Which design was the weakest? (a) design A (b) design B (c) design C
31. 31.🔢 To build and test a straw bridge, which comes first: “choose and draw one” or “build it with straws”? (a) choose and draw one (b) build it with straws
32. 32.🧪 A paper bridge was tested three times. It held 260 g, 200 g and 290 g. What is the mean (average) load it held, in grams?
33. 33.🧪 Is it good or poor testing to change lots at once? (a) poor testing (b) good testing
34. 34.True or false: to skip writing results is poor testing. (a) False (b) True
35. 35.🧪 The first prototype held 80 g. After the team improved it, the new prototype held 200 g. How many more grams did it hold?
36. 36.🧪 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 C (c) design A
37. 37.🧪 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 C (b) design A (c) design B
38. 38.🔍 Which is the odd one out? (a) use the same load (b) measure the same way (c) change only one thing (d) test it only once
39. 39.🧪 A paper bridge was tested three times. It held 250 g, 170 g and 120 g. What is the mean (average) load it held, in grams?
40. 40.True or false: to guess, do not measure is poor testing. (a) False (b) True

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