PDF-Strength of interparticle forces

Encountersbetween particles occur as a result of Brownian motionand stability of a suspension is determined by the interaction between particles during these encounters There is no repulsionThere is r. H Su QH Wei and X Zhang Mechanical Aerospace Engineering Department Uni ersity of California at Los Angeles Los Angeles California 90095 J J Mock D R Smith and S Schultz Department of Physics Uni ersity of California at San Diego La Jolla California Defense Military Pay OfficeDevers Youth Center Welfare and Recreation (FMWR)Directorate of Human ResourcesDirectorate of Public WorksDirectorate of Resource ManagementDirectorate Plans, Training & IB Topic 4: Bonding. Carbon allotropes. pure carbon is covalently bonded in three of different forms (allotropes). graphite. diamond. fullerenes. To buy lots of super duper expensive carbon allotropes, . Here’s Tim & Mobey on Force. Brainpop. Suppose I asked you to move a heavy desk in the classroom. How would you move it? . hmmmmmmmmmmm...... You might get on one side of the desk and start pushing, Or you might grab the legs and start pulling. . Force . A force is simply defined as a push or a pull . Forces cannot be seen. We do see or feel their effects however. Can you identify the forces at work in this situation ? . Millie . opened. the fridge and brought . Newton’s Laws. Isaac Newton. The man, myth, the legend…while you spend your time on Facebook, Newton spent his studying the behavior of objects in MOTION.. His conclusion…anything in motion is going to follow 1 of the 3 basic . ● . Phases and Phase Diagrams. ● Liquids and Liquid Properties. ● Intermolecular Forces. ● Heating Curves. ● Introduction to Solids. ● Cubic Packing Arrangements. ● Closest-Packed Structures. Robert Strawn. Compiled 10/16/11. A force is any push or pull that one object exerts on . another that causes a change in motion, direction, or shape.. The unit for force is the Newton (N) and is equal to . Chemistry 11. Ms. McGrath. Intermolecular Forces. The forces that bond . atoms. to each other within a molecule are called . intramolecular forces. . Covalent bonds and ionic bonds are an example of intramolecular forces.. Forces. Forces can be thought of as pushes and pulls. Examples. You exert a force on a door to open it (a push). Gravity exerts a force on you which holds you to the surface of the earth (a pull). Forces. . . Example:. What is a force? . a) Strong . nuclear . force. b) Electromagnetic force. c) Weak force. d) Gravity.. EXAMPLE? an atom . #2) There are four forces that hold all matter together. 3) Gravitational forces . the forces between (among) individual particles (atoms, ions, molecules); they are weak relative to . intramolecular. forces (i.e. covalent and ionic bonds within a compound). Intermolecular forces are increasingly significant in this order:. . Scalars and vectors. . Types of forces. . Resultant of forces. . Equilibrium of particles. Scalar and Vectors. . Scalar - . a physical quantity that is completely described by a real number. . Review: Forces. What is a force? . Why do you think it’s important to learn about forces? What about gravity and friction?. How might an understanding of forces help you in your everyday life? .