
Smart Choices and Constraints Exam
Flashcard
•
Science
•
6th - 8th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is drag in the context of vehicles?
Back
Drag is the resistance experienced by an object moving through a fluid (like air), which opposes its motion.
2.
FLASHCARD QUESTION
Front
How can aerodynamics affect a car's performance?
Back
Aerodynamics refers to how air flows around a vehicle. A well-designed aerodynamic shape reduces drag, improving speed and fuel efficiency.
3.
FLASHCARD QUESTION
Front
What is the main source of energy for Earth?
Back
The sun is the primary source of energy for Earth, providing light and heat that drive weather, photosynthesis, and other processes.
4.
FLASHCARD QUESTION
Front
What does it mean to consider constraints in problem-solving?
Back
Considering constraints means recognizing the limitations or restrictions that affect how a problem can be solved, such as time, resources, and rules.
5.
FLASHCARD QUESTION
Front
What is air resistance?
Back
Air resistance is a type of friction that occurs when an object moves through air, slowing it down.
6.
FLASHCARD QUESTION
Front
How can a streamlined design help reduce drag?
Back
A streamlined design minimizes the surface area that faces the direction of motion, allowing air to flow smoothly over the object and reducing drag.
7.
FLASHCARD QUESTION
Front
What is the relationship between speed and drag?
Back
As speed increases, drag also increases, making it more important to have an aerodynamic design at higher speeds.
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