IGCSE SoW 2013
... Describe experiments to prepare soluble salts from acids; • from an insoluble base using the excess method • from alkaline solution using the titration method (no calculations required) ...
... Describe experiments to prepare soluble salts from acids; • from an insoluble base using the excess method • from alkaline solution using the titration method (no calculations required) ...
Quantum Mechanics: Commutation
... things: 1. the momentum and total energy do not commute 2. the commutator reduces to a unique operation (we will see this again with respect to angular momentum) Heisenberg Uncertainty Principle Recall the discussion of the free particle. For that system, we determined that the energy (and momentum) ...
... things: 1. the momentum and total energy do not commute 2. the commutator reduces to a unique operation (we will see this again with respect to angular momentum) Heisenberg Uncertainty Principle Recall the discussion of the free particle. For that system, we determined that the energy (and momentum) ...
English Medium
... length 100cm. Find the least of distance of distinct vision and power of lens. 4 Marks 1. Explain the process of experiment that you have conducted to find the refractive index of prism? 2. If you want to know about the most common defects of vision and the remedies to control the defects, whom do y ...
... length 100cm. Find the least of distance of distinct vision and power of lens. 4 Marks 1. Explain the process of experiment that you have conducted to find the refractive index of prism? 2. If you want to know about the most common defects of vision and the remedies to control the defects, whom do y ...
A strong hybrid couple
... class of light-harvesting protein and the channels that might allow electrontransporting molecules to escape this otherwise closed system. See Article p.228 ...
... class of light-harvesting protein and the channels that might allow electrontransporting molecules to escape this otherwise closed system. See Article p.228 ...
Chemistry Chapter 4 Vocabulary 1. Solution 2. Solute 3. Solvent 4
... amount of a solvent at a given temperature to produce a saturated solution A mixture where particles are larger than those found in a solution. Instead of dissolving these particles turn the mixture cloudy. Sometimes the components can be separated by filtering. the amount of solute that is dissolve ...
... amount of a solvent at a given temperature to produce a saturated solution A mixture where particles are larger than those found in a solution. Instead of dissolving these particles turn the mixture cloudy. Sometimes the components can be separated by filtering. the amount of solute that is dissolve ...
Manipulating cold atoms with optical fibres
... The efficiency of TNF to couple fluorescent light from cold atoms placed close to its waist region was studied first. The coupling efficiency of TNF was studied by monitoring the photon count on SPCM during stepwise switching on and off the various elements producing MOT 31. During MOT loading seque ...
... The efficiency of TNF to couple fluorescent light from cold atoms placed close to its waist region was studied first. The coupling efficiency of TNF was studied by monitoring the photon count on SPCM during stepwise switching on and off the various elements producing MOT 31. During MOT loading seque ...
Fields, particles and frontiers of physics - Specimen
... 7 The quality of ultrasound images in increasing at a phenomenal pace, thanks to advances in computerised imaging techniques. The computer technology is sophisticated enough to monitor and display tiny ultrasound signals from a patient. The ratio of reflected intensity to incident intensity for ultr ...
... 7 The quality of ultrasound images in increasing at a phenomenal pace, thanks to advances in computerised imaging techniques. The computer technology is sophisticated enough to monitor and display tiny ultrasound signals from a patient. The ratio of reflected intensity to incident intensity for ultr ...
Momentum and Collisions
... Most of us know intuitively that in a head-on collision between a large dump truck and a subcompact car, you are better off being in the truck than in the car. Why is this? Many people imagine that the collision force exerted on the car is much greater than that experienced by the truck. To substan ...
... Most of us know intuitively that in a head-on collision between a large dump truck and a subcompact car, you are better off being in the truck than in the car. Why is this? Many people imagine that the collision force exerted on the car is much greater than that experienced by the truck. To substan ...
Periodic Table and the Atom Answers
... Periodic Table and the Atom Answers Complete the table. There is enough information given for each element to determine all missing numbers. ...
... Periodic Table and the Atom Answers Complete the table. There is enough information given for each element to determine all missing numbers. ...
MPhys Radiation and Matter 2016–2017
... must be wrong: it needs to be supplemented by an extra force that slows the electron down when it radiates. This force is called radiation reaction; it is difficult to analyse exactly because one needs to consider the EM forces of a particle on itself. We will not try to solve this problem in full, ...
... must be wrong: it needs to be supplemented by an extra force that slows the electron down when it radiates. This force is called radiation reaction; it is difficult to analyse exactly because one needs to consider the EM forces of a particle on itself. We will not try to solve this problem in full, ...
Lectures 6-7
... Thus, if we’re willing to accept more uncertainty about an electron’s momentum, we can have more certainty in knowing its position – and vice versa. This inverse relationship can be ...
... Thus, if we’re willing to accept more uncertainty about an electron’s momentum, we can have more certainty in knowing its position – and vice versa. This inverse relationship can be ...
Chapter 3
... A chemical reaction will change the arrangements of atoms in substances; but it neither destroy nor create atoms (matter) because of the reaction. The quantitative nature of chemical reactions arises from the law of conservation of matter. © 2012 by W. W. Norton & Company ...
... A chemical reaction will change the arrangements of atoms in substances; but it neither destroy nor create atoms (matter) because of the reaction. The quantitative nature of chemical reactions arises from the law of conservation of matter. © 2012 by W. W. Norton & Company ...
UV-Vis (electronic) spectroscopy
... level with transfer of energy from the radiation field to an absorber, atom, molecule, or solid. Emission: A transition from a higher level to a lower level with transfer of energy from the emitter to the radiation field. If no radiation is emitted, the transition from higher to lower energy levels ...
... level with transfer of energy from the radiation field to an absorber, atom, molecule, or solid. Emission: A transition from a higher level to a lower level with transfer of energy from the emitter to the radiation field. If no radiation is emitted, the transition from higher to lower energy levels ...
Atomic theory
In chemistry and physics, atomic theory is a scientific theory of the nature of matter, which states that matter is composed of discrete units called atoms. It began as a philosophical concept in ancient Greece and entered the scientific mainstream in the early 19th century when discoveries in the field of chemistry showed that matter did indeed behave as if it were made up of atoms.The word atom comes from the Ancient Greek adjective atomos, meaning ""uncuttable"". 19th century chemists began using the term in connection with the growing number of irreducible chemical elements. While seemingly apropos, around the turn of the 20th century, through various experiments with electromagnetism and radioactivity, physicists discovered that the so-called ""uncuttable atom"" was actually a conglomerate of various subatomic particles (chiefly, electrons, protons and neutrons) which can exist separately from each other. In fact, in certain extreme environments, such as neutron stars, extreme temperature and pressure prevents atoms from existing at all. Since atoms were found to be divisible, physicists later invented the term ""elementary particles"" to describe the ""uncuttable"", though not indestructible, parts of an atom. The field of science which studies subatomic particles is particle physics, and it is in this field that physicists hope to discover the true fundamental nature of matter.