《大学物理》英文课件5 Force and MotionI.ppt,?大学物理?英文课件5 Force and Motion-I What Causes an Acceleration ? The change in velocity must be due to an interaction. Force: an interaction that can cause an acceleration Newtonian mechanics: the study of
Chapter5.ForceandMotionI5.1.WhatisPhysics?5.2.NewtonianMechanics5.3.Newton'sFirstLaw5.4.Force5.5.Mass5.6.Newton'sSecondLaw5.7.SomeParticularForces5.8.Newton'sThirdLaw5.9.ApplyingNewton'sLawsWhatCausesAcceleration?Dynamics—thestudyofcausesofmotion.Thecentralquestionindynamicsis:Whatcausesabodytochangeitsvelocity...
FORCE AND MOTION Georgia Performance Standards S4P3: Students will demonstrate the relationship between the application of a force and the resulting change in position and motion on an object. a. Identify simple machines b. Using different size objects, observe how force affects speed and motion. ...
Force and MotionUnit 28th Grade SciencePotential EnergyEnergy of Motionic EnergyStored EnergyVelocityThe speed of an object in a certain direction.Unit: mph or fpsBalanced ForcesEqual forces that are
Force and Motion Before NewtonGalileo Determined that objects fall at the same rate, regardless of their weightConcluded that motion is a natural state (an object in motion will stay in motion until something stops it)René Descar
What is a Screw? A screw is a mechanism that converts rotational motion to linear motion, and a torque to a linear force. What is a Lever? Lever = a bar that is free to turn about a fixed point. What is a Wheel & Axle? Wheel and Axle = a simple machine consisting, in its typ...
FORCE AND MOTION NEWTON’S LAWS OF MOTION - Established the relationship between motion and force FIRST LAW – LAW OF INERTIA Every object tends to remain at rest or move with a constant velocity unless acted upon by a net force. NET FORCE – summation of all forces acting on a given bod...
force and motion ForceandMotion Chapter5-6Newton’sLawsandTheirApplications Newton’sFirstLawNewton’sSecondLawNewton’sThirdLaw ApplicationofNewton’sLaws 5.4-5.6Newton’sLaw Galileo’sThoughtExperiment Newton’sFirstLaw:Ifnoforceactsonabody,thebody’svelocitycannotchange;thatis,thebody...
Chapter 6 Force and Motion II Chapter6ForceandMotionII 6.2.Friction6.3.PropertiesofFriction6.4.TheDragForceandTerminalSpeed6.5.UniformCircularMotion TheFrictionForce Therearetwotypesoffrictionforces:•KineticFrictionForces•StaticFrictionForces KineticFrictionForces Anobjectisexperiencingakineticfrictionforce...
初中物理 Force_Motion Energy,Force,andMotion identifyingenergytransformations;Identifyingandanalyzingthetransferofheatenergybyconduction,convection,andradiationinterpretingaphasediagram;describingandcalculatingvelocityandacceleration;comparingNewton’sthreelaws;calculatingmechanicaladvantage;understandingtheworkofsimplemachines ...