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Comparing exponential and logarithmic functions. Social Studies Apps. Science Apps. Math Apps. Poetry Terms: 40 Brief Definitions. Home | Literary Movements | Timeline | American Authors | American Literature Sites | Bibliographies | Site Updates Poetry Terms: Brief Definitions Go to Drama Terms or Fiction Terms Try the Online Quiz on Poetry Terms to test your knowledge of these terms.You might also like to try the Online Quiz on Prosody to test your knowledge of scanning poetry.

Poetry Terms: 40 Brief Definitions

1200 Free Online Courses from Top Universities. Advertisment Take online courses from the world’s top universities for free.

1200 Free Online Courses from Top Universities

Below, you will find 1,700 free online courses from universities like Stanford, Yale, MIT, Harvard, Oxford and more. You can use this collection of online courses to learn everything you want–from history, philosophy and literature, to physics, biology, psychology, and computer science. Our site also features collections of Online Certificate Programs and Online Degree & Mini-Degree Programs. Periodic Table Database. There are hundreds of periodic tables in web space, but there is only one comprehensive database of periodic tables & periodic system formulations.

Periodic Table Database

If you know of an interesting periodic table that is missing, please contact the database curator: Dr Mark R Leach. Clock Face Periodic Table. Browse by Subject. Astronomy Astronomy Education, Cosmic Time and Distance, Cosmology, Exoplanets, Fundamentals, Galaxies, Historical Astronomy, Instrumentation, Milky Way, Solar System, Space Exploration, Stars, The Sun Education Foundations Achievement, Alternative Conceptions, Assessment, Behavior, Cognition, Communication, Learning Theory, Problem Solving, Research Design & Methodology, Sample Population, Societal Issues, Student Characteristics, Teacher Characteristics Electricity & Magnetism.

Browse by Subject

The Periodic Table of Videos - University of Nottingham. SAT Physics: Electric Force. Electric Force There is a certain force associated with electric charge, so when a net charge is produced, a net electric force is also produced.

SAT Physics: Electric Force

We find electric force at work in anything that runs on batteries or uses a plug, but that isn’t all. Almost all the forces we examine in this book come from electric charges. When two objects “touch” one another—be it in a car crash or a handshake—the atoms of the two objects never actually come into contact. Rather, the atoms in the two objects repel each other by means of an electric force. Coulomb’s Law. Electric Circuits. Student Learning Objectives Lessons / Lecture Notes Important Equations Example Problems Applets and Animations Student Learning Objectives To understand how current flows through conductors.

Electric Circuits

To understand and apply a basic model for current, including conservation of current. Ohm's Law. There are certain formulas in Physics that are so powerful and so pervasive that they reach the state of popular knowledge.

Ohm's Law

A student of Physics has written such formulas down so many times that they have memorized it without trying to. Certainly to the professionals in the field, such formulas are so central that they become engraved in their minds. In the field of Modern Physics, there is E = m • c2. In the field of Newtonian Mechanics, there is Fnet = m • a. Torque on a Current Loop: Rectangular and General. Right-hand Rules. Fmagnetic - The force a magnetic field exerts on a moving charge The Right-Hand Rules apply to positive charges or positive (conventional) current Making illustrations of magnetic field and charge interactions in 3D Right-Hand Rule #1 (RHR #1) Right-Hand Rule #1 determines the directions of magnetic force, conventional current and the magnetic field.

Right-hand Rules

DC Motor - MagLab. Electric motors turn electricity into motion by exploiting electromagnetic induction.

DC Motor - MagLab

A simple direct current (DC) motor is illustrated below. Electric motor - Physics - Metropolia Confluence. First we had to think of a really crucial technology concerning mankind.

Electric motor - Physics - Metropolia Confluence

We thought of a generator, since it is almost the only source to generate electricity. The generator was already taken so we thought of another invention which has a great impact on our everyday life. Combustion engine was one invention that crossed our minds, but we thought that it really wasn’t that good, because it uses fossilized energy sources and one day it will become obsolete. We decided to choose electric motor, because it uses electricity to transform it to kinetic energy. Electricity could be produced with sustainable methods and therefore electric motors will be the future choice.

Difference between Electric field and Magnetic field. Wyzant Resources. Written by tutor Kate M. Magnetic and electric fields. Common Errors in English Usage and More. What is an error in English? The concept of language errors is a fuzzy one. New Physics Formula Links Quantum Mechanics And Pure Math. The notorious number Pi has succeeded in becoming even more prevalent in science. Researchers from the University of Rochester discovered that a formula which approximates the energy levels of a hydrogen atom is the same as the one developed 360 years ago by English mathematician John Wallis to find the value of Pi.

The pair of physicists realized that when the variational method was employed to calculate the energy levels of the hydrogen atoms, the formula could be simplified into the Wallis Product, the one used for Pi. The variational method is used to approximate the lower energy states of atoms, when the electrons are close to the nucleus. It is not usually used on the hydrogen atom, as hydrogen is simple enough so scientists can compute the energy levels precisely. Energy levels give an indication of how tightly bound the electron is to an atom; the larger the energy level, the easier it is for the electron to break free. WhyStaticClings. Ions in action. Ions in action Make pieces of paper fly through the air and stick onto a balloon. What you need: A balloon A sheet of paper A hole punch.

Basic electricity. How and Why to Improve Your Cursive Penmanship. Calligraphy for Everyone!"Calligraphy, Lessons, Books, Tips, etc." Alligraphy is an art that just about anyone can do. All you need is a pen and paper, and you're ready to do calligraphy! Indeed, it requires very few materials - you don't need very much space - and, since you can probably write anyway, you already know the basics! Calligraphy is an art form in which patience and attention to detail are more important than artistic talent. Handwriting - A to Z Home's Cool Homeschooling. English exercises - grammar exercises - learn English online. Grammar, Vocabulary & Culture quizzes. Interactive Anatomy Guide. The cells of the human body require a constant stream of oxygen to stay alive.

The respiratory system provides oxygen to the body’s cells while removing carbon dioxide, a waste product that can be lethal if allowed to accumulate. The Respiratory System. What is the function of the respiratory system? The respiratory system is the group of tissues and organs in your body that enable you to breathe. This system includes your airways, your lungs and the blood vessels and muscles attached to them that work together so you can breathe.

The respiratory system's primary function is to supply oxygen to all the parts of your body. It accomplishes this through breathing: inhaling oxygen-rich air and exhaling air filled with carbon dioxide, which is a waste gas. Self-Directed Learning: A Four-Step Process. What Is Self-Directed Learning? Literary Devices and Terms. The periodic table of education technology. 106 pronunciations of 'phonetic' in English. Open Source Physics. Computational Resources for Teaching. Basic electricity. Innovative Learning Environments. 7 Research-Based Methods To Improve Student Achievement □□□ (by @john_hattie) #edchat #education #satchat #elearning. Free Physics Books. Punctuation, symbols & operators in search - Search Help.

Easy reading. Reading skills practice. Cambridge English exam preparation: PET, FCE, CAE, CPE, IELTS. English learning and teaching resources. English Language - WorksheetWorks.com. Reverse Dictionary. <div id="needs_javascript"><center><b>Note: The new Reverse Dictionary requires JavaScript. </b><br /><img src="/img/a.gif? How To Draw. Definite and Indefinite Articles. English Adverbs. Comparatives grammar animation. ShaoLan: Learn to read Chinese ... with ease! English exercises - grammar exercises - learn English online. Nobuna - Free English Listening Exercises. R: Regular Expression. F. Tutorial Complex, slot-based inventory system.

Pick Up Physics Object Tutorial. 1200 Free Online Courses from Top Universities. 200 Free Textbooks: A Meta Collection. 50 Top Sources Of Free eLearning Courses. Coursera.

The Periodic Table of the Figures of Speech: 40 Ways to Improve Your Writing. A Periodic Table of Visualization Methods. The Photographic Periodic Table of the Elements. Dynamic Periodic Table. NoRedInk makes learning grammar fun and easy.

Open Source Physics. Visual dictionary. How to Memorize Verbatim Text. All Things Grammar - Home. Common Mistakes. Road to Grammar - Your Road to Better Grammar. English exercises - grammar exercises - learn english online. English Grammar Lessons for Teachers and Students. Immune System. Endocrine System. Brain Structure And Function. The Limbic System. Fountain Chiropractic. Structure. Dopamine and serotonin pathways. 8 Part Classic Brain Anatomy Model [3B-C17] : ProHealthcareProducts.com. Anatomy of Cerebrospinal Fluid Circulation Model in the Human Brain from 3B Scientific [3B-W19027] : ProHealthcareProducts.com.

Median Section of the Head Anatomy Model [3B-C12] : ProHealthcareProducts.com. Brain Development Methods, Whole Brain Integration, Music and the Brain, Frequencies upon Brain, Subliminals and the Brain, Brain Nutrients, Brain Development. A Periodic Table of Visualization Methods.  Mapping the human brain connectivity. BigBrain. Human Nervous System - Diagram - How It Works. THE BRAIN FROM TOP TO BOTTOM.

Gray's Anatomy. Human skeletal system. Cellular Respiration 1 - Overview. Translation: How Ribosomes Work. Nutrition - Amino acids - the building blocks of protein. The Mitochondrion - Molecular Biology of the Cell - NCBI Bookshelf. Cells - The Building Blocks of Life.