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Questions and Answers
What is the difference between cohesion and adhesion?
What is the difference between cohesion and adhesion?
Cohesion is the attraction between molecules of the same substance. Adhesion is the attraction between molecules of different substances.
What phenomenon describes how a liquid acts as if it had a thin film on its surface?
What phenomenon describes how a liquid acts as if it had a thin film on its surface?
Surface tension
What phenomenon causes water in a narrow tube to rise above the water around the tube?
What phenomenon causes water in a narrow tube to rise above the water around the tube?
Capillarity
Define pressure.
Define pressure.
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State Pascal's Principle.
State Pascal's Principle.
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What machine is a practical application of Pascal's Principle?
What machine is a practical application of Pascal's Principle?
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Study Notes
Cohesion vs. Adhesion
- Cohesion: Attraction between molecules of the same substance.
- Adhesion: Attraction between molecules of different substances.
Surface Tension
- Describes the phenomenon where liquids behave as if they have a thin film on their surface due to cohesive forces.
Capillarity
- Refers to the ability of water to rise above its surrounding level in a narrow tube due to adhesive and cohesive forces.
Pressure
- Defined as the force exerted per unit area, influencing how fluids behave in different scenarios.
Pascal's Principle
- States that when pressure is applied to a fluid in a closed container, this pressure increase is distributed equally throughout the container.
Practical Application of Pascal's Principle
- Hydraulic press exemplifies a machine that utilizes Pascal’s principle for amplifying force through hydraulic fluid.
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Description
Test your knowledge of key scientific concepts in Section 3.3. These flashcards cover important definitions and phenomena related to cohesion, adhesion, and surface tension. Perfect for quick reviews and enhancing your understanding.
