Experiment-5 Thermal physics is the combined study of thermodynamics‚ statistical mechanics‚ and kinetic theory. This practical is done to measure the temperature drop of water over a period of time (30 minutes). Research question- What is the rate of temperature change over a period of 30 minutes? Independent variable- time Dependent variable- the temperature of water Controlled variables- the amount of water in the calorimeter - The stop watch
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The Physics of Soccer Tabitha Richeson 1/15/2013 Section 1: overview When I was five I started playing soccer and I loved it. I liked the running‚ the physical aspect of the sport. When playing soccer I didn’t think there was that many rules or science involved but I was wrong. America is the only country to call “soccer” soccer. The rest of the world calls it Football mainly for the reason you use your feet. According to FIFA(International Federation of Association Football) the
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Identity is never static. “No man is an island‚ entire of itself”‚ English poet John Donne once wrote. Nearly four hundred years later‚ in 21st century’s modern society‚ the emotional attachments between individuals have grown even more immense than it ever was. Complemented by the pace of today’s society‚ this complex relationship is further developed. While being influenced by others‚ we undergo psychological changes‚ which will manifest in amendments in
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** Atom and Introduction to Nuclear physics ** Introduction Alpha-particle scattering 2.1 Experimental set-up ➢ Alpha particle o is a high-energy helium nucleus with 2 protons and 2 neutrons. o has 2 positive charges. ➢ Gold foil was chosen since it has a high atomic mass. Thin gold foil‚ ~10-6m was bombarded by high-energy alpha particles. ➢ Angular deflections/ scattering of alpha particles were measured by observing
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Dancers do not often understand the physics and mathematics describing their movements‚ but they know how to execute them with grace. If ballerinas were not able to feel physics‚ they would fall over. Legs‚ arms and head are oscillating as they turn– moving back and forth in seemingly separate patterns. For dancers‚ everything must move in separate patterns‚ yet at the same time‚ move at the same rhythm. This presentation introduces the history‚ mathematics‚ and physics behind ballet. Ballet originated
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between the armor of the enemy knights also they were used to throw hot tar to attack there enemies. It was also used to launch infected bodies into enemy camps to spread disease. Although they are very hard to create‚ they use very simple forms of physics to complete their task of destruction. The catapult has a basket or cup on the end of a movable arm strong enough and large enough to hold the weight of the object it is intended to hurl. Tension is applied to the arm‚ whether that be applied by
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Another postulate of the kinetic molecular theory is that gas particles are always in motion‚ like the other states of matter. But they are different in that they undergo random translational movement. In solids‚ the particles mainly experience vibrational motion and in liquids they mainly vibrate and rotate‚ with some translational motion. Gas particles move rapidly in straight lines‚ unless acted upon by another particle or the walls of a container. This continuous contact with the container leads
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Required Vocabulary – IB 12 Higher Level Physics and Physical Measurement 1. Fundamental Units – seven basic units of the SI measurement system: kilogram‚ second‚ mole‚ meter‚ ampere‚ Kelvin‚ candela. 2. Derived Units – units that are combinations of fundamental units. These combinations may or may not have a separate name. (eg. 1 kg m/s2 = 1 N) 3. Accuracy - An indication of how close a measurement is to the accepted value (a measure of correctness). 4. Precision - An indication
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Chemistry 12: Reaction Kinetics Review 1. Looking at the expressions for reaction rate‚ write expressions with which you could express rates for the following reactions. (Hint: look at what happens to reactants and products.) Recall that solid or liquids can lose or gain mass‚ gases can lose or gain volume and aqueous solutions can increase or decrease in concentration. ("a" is done as an example.) a) Mg(s) + 2HCl(aq) H2(g) + MgCl2(aq) reaction rate = mass of Mg consumed unit time b) c) or
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ZHEJIANG UNIVERSITY Department of Physics Thermal Physics Problem Set #3‚ Solution Date: 2013/03/29 1. If we apply the highly successful kinetic theory of gases to a metal‚ consider as a gas of electrons (in fact‚ back in 1900 Drude constructed the theory‚ hence the Drude theory of metals)‚ and assume that the electron velocity distribution is given by the Maxwell-Boltzmann distribution‚ what would the most probable speed‚ average speed‚ and rms speed for electrons at room temperature
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