'Si unit' diaporamas de présentation

Daily life examples of force. 100 N. 100 N. 1 2 students are playing tug-of-war ( 拔河 ). 100 N. 100 N. If the rope is cut & reconnected by a newton balance, what is the reading?. A 0 N. C 200 N. B 100 N.

C H A P T E R   19. Electric Potential Energy and the Electric Potential. 19.4  Equipotential Surfaces. An equipotential surface is a Surface on which the Electric Potential is the same everywhere. . Equipotential Lines of Two Unlike Charges.

Chapter 26. Current and Resistance. 26.1. What is Physics?       26.2. Electric Current       26.3. Current Density       26.4. Resistance and Resistivity       26.5. Ohm's Law       26.6. A Microscopic View of Ohm's Law       26.7. Power in Electric Circuits      

Magnetism. Magnetic Force. Magnetic Force Outline. Lorentz Force Charged particles in a crossed field Hall Effect Circulating charged particles Motors Bio-Savart Law. Class Objectives. Define the Lorentz Force equation.

10.8   Torque. Torque is a turning or twisting action on a body about a rotation axis due to a force, . Magnitude of the torque is given by the product of the moment arm and the magnitude of the force. Torque is a vector. The SI unit of torque is the newton-meter (N · m).

Lecture 7 Magnetic Field and Magnetic Force. Chapter 19.1  19.6. Outline. Magnets Magnetic Field Magnetic Force Motion in a Magnetic Field. Magnets. The simplest magnet is a somehow magnetized bar of iron. It attracts and holds other pieces of iron.

Forces in Mechanical Systems. 1.1. Objectives. Define force and describe how forces are measured. Describe what happens when forces on an object are balanced and when they are unbalanced. Explain the meaning of Newton’s first law of motion. Define scalar, vector, weight, mass and torque.

Chapter 19. Magnetism. Magnets have two ends – poles – called north and south. Like poles repel; unlike poles attract. If you cut a magnet in half, you don’t get a north pole and a south pole – you get two smaller magnets. Types of Magnetic Materials.

States of Matter. 13.1 The Nature of Gases 13.2 The Nature of Liquids 13.3 The Nature of Solids 13.4 Changes of State. The Nature of Gases. Objectives Describe the assumptions of the kinetic theory as it applies to gases Interpret gas pressure in terms of kinetic theory

Chapter 10 Gases & the Atmosphere. General Chemistry I T.Ara. A. Properties of Gases. The earth is surrounded by a sea of gases (the atmosphere). Scientists have been studying the properties of gases for hundreds of years. A. Properties of Gases.

Chapter 4. Force and Motion. Chapter Goal: To establish a connection between force and motion. Student Learning Objectives. • To recognize what does and does not constitute a force. • To identify the specific forces acting on an object. • To draw an accurate free-body diagram of an object.

Radiation biology and protection in dental radiology. Dose units and dosimetry. Radiation-absorbed dose (D) This is a measure of the amount of energy absorbed from the radiation beam per unit mass of tissue SI unit: Gray,(Gy) measured in joules/kg conversion: 1 Gray=100 rads. Cont’d.

MAGNETISM. History of Magnetism Bar Magnets Magnetic Dipoles Magnetic Fields Magnetic Forces on Moving Charges and Wires Electric Motors Current Loops and Electromagnets Solenoids. Sources of Magnetism Spin & Orbital Dipole Moments Permanent Magnets

?. m 1 , v 1i. m 2 , v 2i. ?. Linear Momentum and Collisions. Definition of momentum (vector) SI unit: kg m/s. Newton’s second law in term of. rate of change momentum. Δt. F. Average force applied. F av. m. m. after. before. What happens during a collision?. 40m/s. V f =?.

Electrostatics. Electric charge Conservation of charge Insulators & conductors Charging objects Electroscopes Lightning. Van de Graff generators Equilibrium problems Grounding Static electricity Coulomb’s law Systems of charges. Electric Charge.

Chapter 19: Magnetism. Homework assignment : 18,25,38,45,50 Read Chapter 19 carefully especially examples. . Magnets . Magnets. Magnets. Magnetic force. Magnets. Magnetic field lines. Magnets. Magnetic field lines. Electric Field Lines of an Electric Dipole.

Supporting Numeracy for Nursing in Nursing Education - A best practice case study . Facing the Care Challenge RCN Fellows Conference November 17 2010. Background. Nursing numeracy manifestly matters: to patients, to nurses themselves, to their employers, to the public and to nurse

Cutnell/Johnson Physics 8 th edition. Classroom Response System Questions. Chapter 18 Electric Forces and Electric Fields. Reading Quiz Questions. 18.1.1. Which one of the following values is the smallest possible amount of free charge that has been discovered? a) 5.34  10  20 coulombs

Spin Dependent Transport Properties of Magnetic Nanostructures. Amédée d’Aboville, with Dr. J. Philip, Dr. S. Kang, J. Battogtokh. Outline. Introduction to Nanostructures Magnetic Nanostructures Growth Properties Device fabrication Device characterization. What is Nano?.

Chapter. Energy and Its Conservation. 11. In this chapter you will:. Learn that energy is a property of an object that can change the object’s position, motion, or its environment.