HG-1 THE HEAT OF FUSION OF ICE Introduction When heat flows into a system there are a number of things that can happen. One result could be a temperature rise. Or‚ the system might even catch fire. A third possibility is a change of state. As you know‚ matter exists in three states (or maybe four‚ the fourth being a plasma)‚ solid‚ liquid and gaseous. At different temperatures‚ the same substance may be in different states. Each state is characterized by the way the interatomic forces act. In solids
Premium Energy Solid Temperature
PHYSICS OF THE PAST One hundred years ago‚ in a poky apartment in Bern‚ Switzerland‚ Albert Einstein‚ then just a 26-year-old patent office clerk still working part-time towards his PhD‚ published five ground breaking scientific papers. Each of these papers‚ written during Einstein’s annus mirabilis ‚ has become a "classic" in the history of science: On a Heuristic Viewpoint Concerning the Production and Transformation of Light ‚ which discusses optical photons and photoelectric effects. Molecular
Premium Physics Quantum mechanics General relativity
Introduction of Physics: Physics ("knowledge of nature") is the science concerned with the discovery and understanding of the most basic fundamental laws of the universe that control the way everything in the world around us behaves. Discoveries in basic physics have important ramifications for all of science. Physics attempts to describe the natural world by the application of logic scientific methods‚ including modeling by theoreticians. As a core scientific discipline‚ physics is concerned with
Premium Nature Physics Natural science
EXPERIMENT 1: REACTIONS OF ENOLATE IONS WITH CARBONYL GROUPS Aims In this experiment we used two techniques for the reactions of enolate ions with carbonyl groups. One technique used was Doebner reaction and the other technique used was Claisen-Schmidt reaction. Therefore the aim of this experiment is to synthesize trans p-methoxycinnamic acid and to synthesize dibenzalacetone via an aldol condensation reaction between acetone and benzaldehyde. The products would be recrystallized using ethanol
Premium Carbonyl Organic chemistry Aldol condensation
NATIONAL SENIOR CERTIFICATE GRADE 12 ENGLISH HOME LANGUAGE P2 NOVEMBER 2009 MEMORANDUM MARKS: 80 This memorandum consists of 26 pages. Copyright reserved Please turn over English Home Language/P2 -2NSC - Memorandum DoE/November 2009 NOTE TO MARKERS • • • This marking memorandum is intended as a guide for markers. The memorandum will be discussed with the marking panel before marking commences at the marking centre. Candidates’ responses must be considered
Premium The Great Gatsby Poetry F. Scott Fitzgerald
An inclined plane is a flat supporting surface tilted at an angle‚ with one end higher than the other‚ used as an aid for raising or lowering a load. Inclined planes are widely used to move heavy loads over vertical obstacles; examples vary from a ramp used to load goods into a truck‚ to a person walking up a pedestrian ramp‚ to an automobile or railroad train climbing a grade. Inclined planes are widely used in the form of loading ramps to load and unload goods on trucks‚ ships‚ and planes. Wheelchair
Premium Walking Automobile Grade
Sam Preusser Mr. Staude U.S. History 25 April 2013 Truman Doctrine VS. Marshall Plan The years after the war brought times of disagreement and argument. The United States worked at this time to contain and control the spread of communism. During the years of WWII and the Cold War this idea was prominent and an issue America thought must be solved. Their were two strong attempts to fight communism. These attempts were the Truman Doctrine and the Marshall Plan. These ideas go hand in hand making
Free Cold War
A Practical Guide to the Art of Relationship A Toltec THE MASTERY OF LOVE Wisdom Book DON MIGUEL RUIZ To my parents‚ my children‚ my siblings‚ and the rest of my family‚ with whom I am bonded not only by love‚ but by our blood and ancestral roots. To my spiritual family‚ with whom I am bonded by our decision to create a family based on unconditional love‚ mutual respect‚ and the practice of the Mastery of Love. And to my human family‚ whose minds are fertile for the seeds of love contained in
Premium Love 2007 singles 2006 singles
Table Of Contents -The Experiment......................................................................................3 -Ballista Basic Information......................................................................3 -History of a Ballista................................................................................3 -Physics of a Ballista..............................................................................3‚4 -Results............................................
Premium
Revision Checklist for O-Level Physics 5054 Guide for Students www.XtremePapers.net REVISION CHECKLIST for O Level Physics 5054 A guide for students How to use this guide The guide describes what you need to know about your O level Physics examination. It will help you to plan your revision programme for the written examinations and will explain what the examiners are looking for in the answers you write. It can also be used to help you to revise by using the tick boxes in Section 3‚ ‘What
Premium Energy