《大学物理》英文课件5 Force and Motion-I.ppt,Force and Motion –Ⅰ Dr. Huaqiu Deng E-mail: hqdeng@scut.edu.cn What Causes an Acceleration ? The change in velocity must be due to an interaction. Force: an interaction that can cause an acceleration Newtoni
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 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 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...
motionforcescentripetalangularforcespeed CPOScienceFoundationsofPhysicsChapter9Chapter9 8.1MotioninCircles 8.2CentripetalForce 8.3UniversalGravitationandOrbitalMotionChapter8UsingVectors:ForcesandMotion1.Calculateangularspeedinradianspersecond.2.Calculatelinearspeedfromangularspeedandvice-versa.3.Describeandcalculatecentripet...
Force & Motion Force Fkick Fgravity A push or pull that one object exerts on another A force has both size and direction Fkick Fgravity How do we measure Force? We use a Spring Scale to measure force. The unit of measurement for force is Newtons. ...
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
Newtons Second Law of motion pertains to the behavior of objects for which all existing forces are not balanced. The second law states that the acceleration of an object is dependent upon two variables - the net force acting upon the object and the mass of the object. The acceleration of ...
被动语态的翻译 1)Theoptimistsbelievedefeatisnottheirfault:circumstances,badluck,orotherpeoplebroughtitabout.Suchpeoplearenotbotheredbydefeat.乐观主义者相信失败并不是他们的错,环境、运气不佳或其他人都可能造成自己的失败。这些人从不为失败所困扰。2)Whenoptimistsrunforoffice,theyaremoreapttobeelectedthan...
3.Abodyinmotionremainsinmotionataconstantspeedinastraightlineunlessacteduponbyanexternalforce.没有外力的作用,运动的物体就连续做匀速直线运动。4.Weknewspringwascomingaswehadseenarobin.我们看见了一只知更鸟,知道春天快要到了。18ppt课件形合意合作业1.Astheweatherwasf形合意合作业5.有饭大家吃(=如果有饭的话...