PPT-FORCES

CHAPTER 19 M OSTMANN 7 th Grade Science Kate Bond Middle School WHAT IS A FORCE What causes these cyclists to move forward What prevents these cyclists from moving as fast as a race car. Defense Military Pay OfficeDevers Youth Center Welfare and Recreation (FMWR)Directorate of Human ResourcesDirectorate of Public WorksDirectorate of Resource ManagementDirectorate Plans, Training & A force is a . conservative force. if the net work it does on a particle moving around any closed path, from an initial point and then back to that point, is zero. . Equivalently, a force is conservative if the net work it does on a particle moving between two points does not depend on the path taken by the particle. . CA Standards. Students know . the atoms and molecules in liquids move in a random pattern relative to one another because the intermolecular forces are too weak to hold the atoms or molecules in a solid form.. Rate Yourself. 4 = . Explain real world situations using academic voc. . a. nd Newton’s laws.. 3 . = . Investigate and describe types of forces. Differentiate between mass and weight.. 2 . = . Describe the relationship between distance, mass, and gravitational force.. A . force. is a push or a pull. .. Many different forces act on objects around us all the time.. . If . the forces on the object are . balanced. , . then the object doesn’t move. . When two or more forces are acting on an object and they are not equal in size, we say the forces are . 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. . ● . 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 . A body being squeezed. Forces. Compression. Tension. A body being stretched. Truss. A truss is composed of slender members joined together at their end points.. They are usually joined by welds or gusset plates.. 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. Mr. Ruddle. Construction Technology. Lesson Overview. In this lesson, you will analyze the four forces that can potentially act upon structural objects: tension, compression, shear and torsion. The lesson will prepare you to be able to select appropriate materials and designs for different situations based on the types of forces that need to be accounted for.. 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:. What is a force?. A force is a push or a pull. . Forces make objects accelerate. What are the two general types of forces? How are they different?. Type 1: Contact Forces. Force as a result of object touching. . 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? .