Such forces cause liquid drops to cling to window panes, for example. Attractive forces between molecules of different types are called adhesive forces. Liquids can, for example, be held in open containers because cohesive forces hold the molecules together. What is the common thread? All these activities are dominated by the attractive forces between atoms and molecules in liquids-both within a liquid and between the liquid and its surroundings.Īttractive forces between molecules of the same type are called cohesive forces. A premature infant struggles to inflate her lungs. A technician draws blood into a small-diameter tube just by touching it to a drop on a pricked finger. (See Figure 1.) An underwater spider keeps his air supply in a shiny bubble he carries wrapped around him. Understand cohesive and adhesive forces.Ĭhildren blow soap bubbles and play in the spray of a sprinkler on a hot summer day.Chapter 8 Linear Momentum and Collisionsģ7. 9.1 The First Condition for Equilibriumģ8. 9.2 The Second Condition for EquilibriumĤ0. 9.4 Applications of Statics, Including Problem-Solving StrategiesĤ2. 9.6 Forces and Torques in Muscles and JointsĤ7. 11.4 Variation of Pressure with Depth in a FluidĤ9. 11.6 Gauge Pressure, Absolute Pressure, and Pressure Measurementĥ1. 11.8 Cohesion and Adhesion in Liquids: Surface Tension and Capillary Action Chapter 7 Work, Energy, and Energy ResourcesĢ5. 7.2 Kinetic Energy and the Work-Energy TheoremĢ7. 7.4 Conservative Forces and Potential Energyģ1. 7.8 Work, Energy, and Power in Humans Chapter 5 Further Applications of Newton’s Laws: Friction, Drag and Elasticity Chapter 4 Dynamics: Force and Newton’s Laws of Motionġ5. 4.2 Newton’s First Law of Motion: Inertiaġ6. 4.3 Newton’s Second Law of Motion: Concept of a Systemġ7. 4.4 Newton’s Third Law of Motion: Symmetry in Forcesġ8. 4.5 Normal, Tension, and Other Examples of ForcesĢ0. 4.7 Further Applications of Newton’s Laws of Motion Chapter 3 Two-Dimensional Kinematicsġ1. 3.2 Vector Addition and Subtraction: Graphical Methodsġ2. 3.3 Vector Addition and Subtraction: Analytical Methods Chapter 1 The Nature of Science and PhysicsĤ. 1.3 Accuracy, Precision, and Significant FiguresĨ. 2.2 Vectors, Scalars, and Coordinate Systems
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