Refracted Images Lecture 25 Thursday: 15 April 2004.

Slides:

Advertisements

Similar presentations

Advanced Higher Physics Unit 2

Advertisements

R3-1 Physics I Review 3 Review Notes Exam 3. R3-2 Newton’s Law of Universal Gravitation.

Electrostatics is the study Of electrical charges that Can be collected and held in One place.

Ch. 3.2 Atomic Structure On your bell work sheet, answer the following. When are zeros significant? When do you use the fewest number of Significant Figures?

The Structure of the Atom. Demonstrate the Think Tube.

The structure of the atom

Scientists that changed our view of the atom

3-2 Discovering Atomic Structure

The specific charge of the electron

Purpose Determine the charge to mass ratio (e/m) of an electron.

Forces caused by magnetic fields. What is it? A device used to measure very small currents (like those produced by a magnetic field)

Atomic Theorists How we got to where we are now. Law of Conservation of Mass Matter can’t be created or destroyed Who: Antoine Lavoisier When: 1785 Where:

Magnetic Field and Magnetic Forces

24-1 Physics I Class 24 e/m Ratio for the Electron.

Discovery of electron J.J. Thomson ( ) /thomson.html

22-1 Physics I Class 22 Electric Potential Work Integral in Multiple Dimensions (Review)

Reflection & Refraction,Reflected Images Lecture 24 Monday: 12 April 2004.

20-1 Physics I Class 20 Electric Potential Work Integral in Multiple Dimensions (Review)

The History of the Atom.

Lecture 49/7/05 Homework concerns Atomic Structure.

Physical Science The Atom. Atoms – the smallest recognizable building block used to make all other substances Atom = one Element = many.

More than One Way to Skin a Cat? The Charge-to-Mass Ratio of the Electron.

The Law of Conservation of Mass

Magneto statics AP Physics. Magnetism 1.Permanent Magnets – Objects that retain their magnetic properties Ex. the magnet in a compass, bar magnet, horseshoe.

Experimental Measurement of the Charge to Mass Ratio of the Electron Stephen Luzader Physics Department Frostburg State University Frostburg, MD.

Comprehension Check 1. An electron is moving at right angles to uniform magnetic field; if the electron is moving at.010c, determine the magnitude of the.

History of the Atom: Physics Chapter 27

Section 2 The Structure of the Atom Lesson Starter Even though the two shapes look different, the characteristics of the various parts that compose them.

The Parts of an Atom.

1 Atoms are divisible! By the 1850s, scientists began to realize that the atom was made up of subatomic particles Thought to be positive and negative.

Topic 25: Charged Particles 25.1 Electrons 25.2 Beams of charged particles.

J.J. Thomson His model of the atom.

( Thompson’s Experiment )

Copyright © 2009 Pearson Education, Inc. Applications: Motors, Loudspeakers, Galvanometers.

ACCELERATING ELECTRONS Will produce alternating electric and magnetic fields (No wires necessary!)

A PRESENTATION BY BERNARD NUAR, JOSH BOLTON, AND JUSTYN DAY The Discovery of the Electron.

Properties of cathode rays

Wednesday, Feb. 18, 2015 PHYS , Spring 2014 Dr. Jaehoon Yu 1 PHYS 3313 – Section 001 Lecture #9 Wednesday, Feb. 18, 2015 Dr. Jaehoon Yu Quantization.

The Historical View of Atomic Structure Continued.

Atomic Timeline WARM-UP: Take out your Ch. 3 VOCABULARY and timeline materials and begin completing timeline. With your table, you are to create an Atomic.

Modern Version of the Experiment: Using electricity, water is electrolyzed into its components, hydrogen and oxygen. Results: Water is always found to.

Section 2 The Structure of the Atom Discovery of the Electron Cathode Rays and Electrons Chapter 3 These particles were named electrons. Experiments in.

Evolution of the Atomic Theory. Greek Philosophy (400 BC) Democritus “All matter is made of atoms” Philosophy is knowledge gained only by observation.

26.1 Action of Electric and Magnetic Fields on Matter Chapter 26.

Charged Particles Discovery of Electron Electron beams in Fields Electron Tubes Measurement of the Charge of the Electron.

Historical Figures In Chemistry Oldies but goodies.

Preview Lesson Starter Objectives The Structure of the Atom Properties of Subatomic Particles Discovery of the Electron Discovery of the Atomic Nucleus.

7.3 Magnetic Fields and the Electron p. 284 Electron Behaviour (part 1) J.J. Thomson (1856 – 1940) made meticulous measurements of cathode rays and measured.

Models of the Atom Day 1. What is an atom? Why do we care about older models?

Chapter 26 Electromagnetism. Mass of Electron Determined by J.J. Thomson Determined by the deflection of the electron in a cathode ray tube.

THE ATOM History and Structure. The Atom  Objectives Summarize the observed properties of cathode rays that led to the discovery of the electron Summarize.

Historical Perspective of Atomic Discovery. Democritus Circa 400 BC A-tomfrom the Greek for “not-cut” Atomic theory had no scientific proof.

Millikan's Oil Drop Experiment charge ? gram 1.76 x 108 coulombs

The Discovery of the Electron BY THONNY KOON. J.J. Thomsom  Third Cavendish Professor of Experimental Physics in  Studied Cathode Rays  At the.

DETERMINING MOLECULAR FORMULAS (FOR COVALENTLY BONDED COMPOUNDS)

Principles of Electromechanics Electricity  Motion Electricity  Motion: Motor Motion  Electricity: Generator  Magnetic Field & Faraday’s Law.

Millikan's Oil Drop Experiment charge ? gram 1.76 x 108 coulombs

Applications: Motors Loudspeakers Galvanometers

3.1: Discovery of the X Ray and the Electron

Robert Millikan Oil drop Experiment

Measurement of electron’s E/M

Atomic Models and Millikan’s Apparatus

Chapter 2 The Atom.

Physics I Class 20 Electric Potential.

The Structure of the Atom

Textbook: 8.2 Homework: pg. 396 # 3 – 5 pg. 402 # 1 – 3 , 10

Discovery of the Electron

e/m Ratio for the Electron

Fundamental Particles of Matter

Presentation transcript:

Refracted Images Lecture 25 Thursday: 15 April 2004

A Similar Application -- Mass Spectrometer

Mass Spectrometer Diagram

Basic Operation of a Magnetic Sector Mass Spectrometer

Class #25 Take-Away Concepts

Optional Material for Class #25

Robert Andrews Millikan

Analysis of Oil Drop Experiment

Physical Principles of Design Activity for Class 24 Monday: 12 April 2004 “e/m Ratio for the Electron” J.J.Thomson-Experiment

Joseph John (“J.J.”) Thomson

Calculating Change in K.E. from Electric Potential (Review)

Magnetic Force on a Moving Charge (Review)

The Radius of the Circle (Review)

Apparatus for Measuring e/m

The Cathode Ray Tube

Analysis of Electron Acceleration

Helmholtz Coils

Derivation of e/m Formula

Experimental Procedure

Viewing the Electron Path

Activity #25 Measuring e/m for the Electron