Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 859 · 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 lots at once? (a) good testing (b) poor testing
2. 2.🧪 Three prototype bridges were tested with the same method. Design A held 240 g, design B held 290 g and design C held 190 g. Which design was the strongest? (a) design C (b) design B (c) design A
3. 3.🧪 What is a prototype? (a) an early test model (b) a sales poster (c) the final product (d) a broken part
4. 4.🧪 Three prototype bridges were tested with the same method. Design A held 170 g, design B held 270 g and design C held 220 g. Which design was the strongest? (a) design B (b) design A (c) design C
5. 5.🧪 A paper bridge was tested three times. It held 320 g, 310 g and 300 g. What is the mean (average) load it held, in grams?
6. 6.🧪 Three prototype bridges were tested with the same method. Design A held 300 g, design B held 250 g and design C held 200 g. Which design was the weakest? (a) design B (b) design C (c) design A
7. 7.🧪 The first prototype held 290 g. After the team improved it, the new prototype held 480 g. How many more grams did it hold?
8. 8.🧪 Is it good or poor testing to change only one thing? (a) poor testing (b) good testing
9. 9.🧪 Is it good or poor testing to test it only once? (a) good testing (b) poor testing
10. 10.🧪 A paper bridge was tested three times. It held 340 g, 260 g and 360 g. What is the mean (average) load it held, in grams?
11. 11.🧪 The first prototype held 220 g. After the team improved it, the new prototype held 320 g. How many more grams did it hold?
12. 12.🧪 A paper bridge was tested three times. It held 340 g, 330 g and 320 g. What is the mean (average) load it held, in grams?
13. 13.🔍 Which is the odd one out? (a) use a new load each time (b) use the same load (c) measure the same way (d) record every result
14. 14.🧪 Why repeat a test three times? (a) it looks busy (b) the first is wrong (c) to get reliable results (d) to use more paper
15. 15.🧪 The first prototype held 130 g. After the team improved it, the new prototype held 150 g. How many more grams did it hold?
16. 16.🧪 A paper bridge was tested three times. It held 190 g, 130 g and 160 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 120 g and design C held 170 g. Which design was the strongest? (a) design B (b) design C (c) design A
18. 18.True or false: to test it only once is poor testing. (a) False (b) True
19. 19.🔢 To build and test a straw bridge, which is the FIRST step? (a) choose and draw one (b) read the challenge rules (c) sketch three ideas (d) strengthen the weak part
20. 20.🧪 A paper bridge was tested three times. It held 410 g, 250 g and 330 g. What is the mean (average) load it held, in grams?
21. 21.🔍 Which is the odd one out? (a) guess, do not measure (b) change only one thing (c) record every result (d) repeat each test
22. 22.True or false: to test it only once is good testing. (a) True (b) False
23. 23.🔍 Which is the odd one out? (a) hide a failed test (b) repeat each test (c) record every result (d) change only one thing
24. 24.🧪 A paper bridge was tested three times. It held 240 g, 90 g and 150 g. What is the mean (average) load it held, in grams?
25. 25.🧪 The first prototype held 150 g. After the team improved it, the new prototype held 180 g. How many more grams did it hold?
26. 26.🔢 To build and test a straw bridge, which comes first: “load it with coins” or “read the challenge rules”? (a) load it with coins (b) read the challenge rules
27. 27.🧪 A paper bridge was tested three times. It held 250 g, 220 g and 250 g. What is the mean (average) load it held, in grams?
28. 28.🔍 Which is the odd one out? (a) repeat each test (b) change lots at once (c) use the same load (d) change only one thing
29. 29.🔢 To build and test a straw bridge, which comes first: “strengthen the weak part” or “sketch three ideas”? (a) strengthen the weak part (b) sketch three ideas
30. 30.🧪 The first prototype held 100 g. After the team improved it, the new prototype held 110 g. How many more grams did it hold?
31. 31.True or false: to change only one thing is poor testing. (a) False (b) True
32. 32.🔢 To build and test a straw bridge, which comes first: “build it with straws” or “load it with coins”? (a) build it with straws (b) load it with coins
33. 33.True or false: to hide a failed test is poor testing. (a) True (b) False
34. 34.🧪 The first prototype held 170 g. After the team improved it, the new prototype held 280 g. How many more grams did it hold?
35. 35.🧪 The first prototype held 60 g. After the team improved it, the new prototype held 180 g. How many more grams did it hold?
36. 36.🧪 Three prototype bridges were tested with the same method. Design A held 240 g, design B held 190 g and design C held 140 g. Which design was the weakest? (a) design A (b) design B (c) design C
37. 37.True or false: to use the same load is good testing. (a) False (b) True
38. 38.True or false: to change only one thing is good testing. (a) False (b) True
39. 39.🧪 Is it good or poor testing to hide a failed test? (a) good testing (b) poor testing
40. 40.🧪 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 weakest? (a) design A (b) design C (c) design B

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