F rF is variable The two quantities are equal ( Work, K.E theorem )

Slides:

Advertisements

Similar presentations

Advertisements

 Conservation of energy means energy is not lost or gained  Important equations: E total = KE + GPE KE = ½ mv 2 GPE = ma grav h KE i + GPE i = Ke.

The Laws of Motion Newton’s Three Laws. What is a Force? It is something we experience every single day. You are exerting a force on your pencil right.

Work and Kinetic Energy Why are they clapping he did not do work.

Slide1: 50 Newton is about equal to lbs lbs lbs lbs lbs.

ENGR 215 ~ Dynamics Sections 13.1 – Newton’s Three Laws of Motion First Law –a particle originally at rest, or moving in a straight line with constant.

Happyphysics.com Physics Lecture Resources Prof. Mineesh Gulati Head-Physics Wing Happy Model Hr. Sec. School, Udhampur, J&K Website: happyphysics.com.

CH4: Forces and Newton's Laws of Motion Concepts of force, mass, and weight. Newton’s laws of motion. Newton’s law of gravitation. Friction: kinetic and.

Aim: How can we explain the motion of elevators using Newton’s 2 nd law? Do Now: What is the acceleration of this object? m = 20 kg F = 150 N F = 100 N.

Chapter 5 The Laws of Motion. Chapter 5 Intro We’ve studied motion in terms of its position, velocity and acceleration, with respect to time. We now need.

Chapter 5 Newton’s Second Law of Motion – Force and Acceleration

Chapter 7 Linear Momentum. Chapter Momentum Linear Momentum- product of mass times velocity p=mvp=momentum units=kg.m/sec Restate Newton’s second.

Kinetic Energy A moving object has energy because of its motion. This energy is called kinetic energy.

The Work Energy Theorem Up to this point we have learned Kinematics and Newton's Laws. Let 's see what happens when we apply BOTH to our new formula for.

Force A push or pull exerted on an object..

Chapter 12: Forces and Motion

Chapter 5 Work and Energy. Work and Energy A force that causes a displacement of an object does work on the object. W = Fd *Force in the direction of.

Honors Physics Newton’s Second Law of Motion.  Newton’s First Law explains the results of zero net external force. –The body stays at rest or moves with.

Work and Energy Level 1 Physics. OBJECTIVES AND ESSENTIAL QUESTIONS OBJECTIVES Define and apply the concepts of work done by a constant force, potential.

Newton’s Laws of Motion Mr. Rockensies Regents Physics.

Chapter 6: Work and Energy Essential Concepts and Summary.

Conservation of Momentum Chapter 6 section 2. Momentum is Conserved With in a closed system, momentum is conserved. With in a closed system, momentum.

Newton’s Laws of Motion

Chapter 7: Linear Momentum Along with conservation of energy, we will now include other conserved quantities of linear and angular momentum. Linear momentum.

1 Motion – Newton’s Laws 1. Every body continues in its state of rest or uniform motion unless it is acted upon by a net external force. 2. The acceleration.

The Laws of Motion Newton’s Three Laws. What is a Force? It is something we experience every single day. You are exerting a force on your pencil right.

Newton’s Laws of motion. Forces We have talked about different forces before but haven’t examined them in depth. A force is a push or a pull on an object.

WORK A force that causes a displacement of an object does work on the object. W = F d Work is done –if the object the work is done on moves due to the.

Conservation of Mechanical Energy Mechanical Energy – The sum of Potential and Kinetic Energies ME=PE+KE The conservation of mechanical energy states that.

Energy and its Conservation

Ch. 2 Mechanical Equilibrium Pg (1,2,4,6, 9,14,22, 28,29)

WORK KINETIC ENERGY THEOREM. THE WORK ENERGY THEOREM Up to this point we have learned Kinematics and Newton's Laws. Let 's see what happens when we apply.

Work and Energy. Work Done by a Constant Force Work: The __________done by a constant ________acting on an object is equal to the product of the magnitudes.

Physics Section 5.2 Define and apply forms of mechanical energy. Energy is the ability to do work. Kinetic energy is the energy of an object due its motion.

Newton’s Second Law of Motion. 2 nd Law of Motion  The net (total) force of an object is equal to the product of its acceleration and its mass.  Force.

Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Section 1 Work Chapter 5 Definition of Work Work is done on an object.

Work is only done by a force on an object if the force causes the object to move in the direction of the force. Objects that are at rest may have many.

Work and Energy Energy. Kinetic Energy Kinetic energy – energy of an object due to its motion Kinetic energy depends on speed and mass Kinetic energy.

Energy – the ability to do work W = Fd = m a d V f 2 = V i 2 + 2a  x V f 2 - V i 2 = + 2a  x V f 2 - V i 2 = a  x 2.

Energy Notes Energy is one of the most important concepts in science. An object has energy if it can produce a change in itself or in its surroundings.

Energy and Work. Work… Work = Force // x Displacement W = F // x d ** Remember that displacement is the distance AND direction that something moves. It.

Formula Momentum (p) = Mass x velocity Unit is kgm/s.

Warm Up What would happen if you are driving a car 40 miles per hour forward, and you throw a baseball out the back at 40 miles per hour?

FORCE AND MOTION I Change in velocity acceleration

Work, Energy & Power AP Physics 1.

Work-Energy Theorem Recall that Work equals a change in the kinetic energy of an object ( W = ∆KE). Therefore, W = KEafter - KEbefore Also recall.

Chapter III Dynamics The Net Force on a Body and Newton’s First Law

Unit 6 Notes Work, Enery, & Power.

Conservation of Momentum

Terminal Velocity Think before you jump.

I. Newton’s Laws of Motion

Section 11.2 Conservation of Energy

SECTION 5.3 FORCE AND MOTION IN 2 DIMENSIONS

until an unbalanced force acts on it!!

Energy comes in many forms: mechanical, electrical , magnetic, solar,

Friction and Normal Force

Newton’s Laws.

Devil physics The baddest class on campus IB Physics

Momentum and Impulse SPH4U.

Work, Energy & Power Honors Physics.

Work, Energy & Power Physics.

Notes Over 6.6 Possible Zeros Factors of the constant

Newton’s Laws of Motion

Newton’s Laws of Motion

Newton's Laws Of Motion Teneighah Young.

Physics Chapter 6 Equilibrium.

Newton’s Third Law of Motion

Presentation transcript:

F rF is variable

The two quantities are equal ( Work, K.E theorem )

=2N =4N =3m/s Find the net power If F2=6N What will happen to Velocity in both cases A: Stay constant b: increase

I am John, sally is applying a force F and doing a work mgh but mg is doing a work -mgh so net work is zero and K.E should not change I am Sally, For me the book is stationary so F is doing no work as well as mg and K.E is zero and do not change. Laws of physics are the same in all inertial frames.