All flashcards
Flashcard 1: Which option best describes a fair comparison: testing both designs in the same place and time, or in different places?
Answer: Testing both designs in the same place and time. Same conditions ensure differences come from the designs, not the environment.
Flashcard 2: What should stay the same in a fair test when comparing two designs?
Answer: Only one thing changes; the other conditions stay the same. Fair tests require controlling variables except the one being tested.
Flashcard 3: Which option should you change when test results show a design is not meeting the goal?
Answer: Change the part causing the weakness. Fixing the weak part directly addresses the problem.
Flashcard 4: What is a strength of a design when you look at its test results?
Answer: Something the design does well based on the results. Strengths show where the design meets or exceeds expectations.
Flashcard 5: What is a weakness of a design when you look at its test results?
Answer: Something the design does not do well based on the results. Weaknesses reveal areas needing improvement.
Flashcard 6: What does it mean to compare test results from two designs?
Answer: Look at results side by side to see which works better. Examining both outcomes helps identify which performs better.
Flashcard 7: What should you do first if the test results are unclear or confusing?
Answer: Repeat the test the same way. Repeating helps confirm if results are reliable or just random.
Flashcard 8: Which design is faster if Design A finishes in 12 seconds and Design B finishes in 15 seconds?
Answer: Design A. Lower time means faster completion.
Flashcard 9: What does it mean if a design has the same result in repeated tests?
Answer: The result is consistent. Consistent results show the design performs predictably.
Flashcard 10: What does it mean if a design has different results each time it is tested the same way?
Answer: The result is inconsistent. Varying results suggest the design is unreliable.
Flashcard 11: Which option is the best evidence: a single test result or results from many repeated tests?
Answer: Results from many repeated tests. Multiple tests provide stronger evidence than a single test.
Flashcard 12: Identify the best conclusion if Design A works 8 times out of 10 and Design B works 5 times out of 10.
Answer: Design A is more reliable than Design B. Design A succeeds more often, making it more dependable.
Flashcard 13: Which design has the higher success rate: Design A rac{7}{10} or Design B rac{6}{10}?
Answer: Design A. 107>106, so A succeeds more frequently.
Flashcard 14: Identify the weakness if a bridge design holds 3 books but the goal is to hold 5 books.
Answer: It does not hold enough weight. The bridge fails to meet the 5-book requirement.
Flashcard 15: Which design is stronger if Design A holds 6 blocks and Design B holds 4 blocks before breaking?
Answer: Design A. Design A supports more blocks before failing.
Flashcard 16: What is one correct way to record results so two designs are easy to compare?
Answer: Write results in a table with the same units. Tables organize data for easy comparison.
Flashcard 17: What is the best conclusion when one design is stronger in one test but weaker in another?
Answer: Each design has different strengths and weaknesses. No single best design when each excels differently.
Flashcard 18: Which design meets the goal if the goal is at least 6 points: A = 6, B = 5?
Answer: Design A. Design A equals the goal; B falls short.
Flashcard 19: Which design improved if its results changed from 4 to 7 in the next test?
Answer: The design that changed from 4 to 7 improved. Higher scores show the design got better.
Flashcard 20: Which test result shows better performance: 8 blocks held or 5 blocks held?
Answer: 8 blocks held. More blocks held means stronger support.
Flashcard 21: Which test result shows better performance: 3 leaks or 1 leak?
Answer: 1 leak. Fewer leaks means better waterproofing.
Flashcard 22: Which test result shows better performance: 10 cm traveled or 6 cm traveled?
Answer: 10 cm traveled. Greater distance shows better movement ability.
Flashcard 23: Identify the stronger design if Design A holds 7 coins and Design B holds 4 coins.
Answer: Design A. More coins held shows greater strength.
Flashcard 24: What does it mean to compare test results from two designs?
Answer: Look at both results to see which design did better. Comparing helps you decide which design works better for your goal.
Flashcard 25: What is a strength of a design when you look at test results?
Answer: A part that works well in the test. Strengths show what the design does successfully.
Flashcard 26: What is a weakness of a design when you look at test results?
Answer: A part that does not work well in the test. Weaknesses show where the design needs improvement.
Flashcard 27: Identify the stronger design if Design A has 2 breaks and Design B has 0 breaks.
Answer: Design B. No breaks means the design is more durable.
Flashcard 28: Which design is better if the goal is fastest time: A = 12 s, B = 9 s?
Answer: Design B. Lower time means faster completion.
Flashcard 29: Which design is better if the goal is longest time: A = 15 s, B = 11 s?
Answer: Design A. Higher time means it lasts longer.
Flashcard 30: What should you keep the same to make a fair test when comparing designs?
Answer: Only the design changes; everything else stays the same. Fair tests need identical conditions except the design.