Version 1.0 General Certificate of Education (A-level) January 2012 Physics A (Specification 2450) PHYA2 Unit 2: Mechanics‚ materials and waves Final Mark Scheme Mark schemes are prepared by the Principal Examiner and considered‚ together with the relevant questions‚ by a panel of subject teachers. This mark scheme includes any amendments made at the standardisation events which all examiners participate in and is the scheme which was used by them in this examination. The standardisation
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__________________________________ Electric Fields Go to HYPERLINK "http://phet.colorado.edu/simulations/sims.php?sim=Electric_Field_Hockey" http://phet.colorado.edu/simulations/sims.php?sim=Electric_Field_Hockey and click on Run Now. 1. You rub balloons in your hair and then hang them like in the picture below. Explain why you think they move apart and what might affect how far apart they get. When the balloons are rubbing together they are taking charges(electrons ) from one another
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1. Energy transfer by heating * Infrared Radiation * Surfaces and Radiation * States of matter * Conduction * Convection * Evaporation and condensation * Energy Transfer by design * Specific heat capacity * Heating and insulation buildings 2. Using Energy * Forms of energy * Conservation of energy * Useful energy * Energy and efficiency 3. Electrical Energy * Electrical Appliances * Electrical Power * Using electrical energy
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HSC Area of Study Discovery AN ETA RESOURCE www.englishteacher.com.au Overview of the session ! The rubric ! Why is discovery an important concept? ! The texts as discoveries ! Activities to start the unit with students ! Ways into the texts and related texts The rubric ! Students need to know the rubric! One way to engage with the rubric is to look at each statement and determine the focus by deciding if it is a: WHO WHAT WHERE WHEN WHY or HOW ! type of statement The rubric
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Candidate Number: 001226038 May 1‚ 2012 ACCELERATION OF A FREE FALL Aim: To calculate the acceleration of gravity (������) of free fall of a body on earth. Apparatus Required: • • • • • • Light gates Ruler( ±0.001 m) String Free falling object(cylindrical tube taken) Stand
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Since the birth of Physical Review Letters fifty years ago‚ condensed matter physics has seen considerable growth‚ and both the journal and the field have flourished during this period. In this essay‚ I begin with some general comments about condensed matter physics and then give some personal views on the conceptual development of the field and list some highlights. The focus is mostly on theoretical developments. DOI: 10.1103/PhysRevLett.101.250001 PACS numbers: 01.30.−y The transistor
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Topic 1 Units‚ Conversions‚ and Estimation 1.1 Conceptual Questions 1) The current definition of the standard meter of length is based on A) the distance between the earthʹs equator and north pole. B) the distance between the earth and the sun. C) the distance traveled by light in a vacuum. D) the length of a particular object kept in France. Answer: C Var: 1 2) The current definition of the standard second of time is based on A) the frequency of radiation emitted by cesium atoms. B) the earthʹs rotation rate
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experiment is done in two ways 1) with constant time and 2) with constant height. In this way‚ we can compare and know if there will be a difference in the amount of power exerted by a person if either time or height will be constant. The formulated hypotheses are 1) work is directly proportional to power in constant time 2) time is inversely proportional to power in constant work. Variables vary in the experiment. Below is a diagram portraying the variables involved in experiment 1 and 2. Dependent Power
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receive the permission the testing can be started on humans. If new drug is permitted for testing on humans the company can start to search the volunteers. Testing on humans or clinical trials includes three phases: I‚ II and III. Phase I usually lasts 1 ½ years. Drug Company or sponsor conduct the study on 10 to 100 volunteers who don’t have any medical conditions. Company must to provide the inform consent where has to be included all possible risks and known effects of the new drug. During phase
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Experiment 1: Errors‚ Uncertainties and Measurements Laboratory Report Department of Math and Physics College of Science‚ University of Santo Tomas Abstract With the use of the ruler‚ vernier caliper‚ micrometer caliper and electronic gram scale‚ the group was able to acquire different sets of measurements by measuring the sphere of unknown composition. The group then was able to compute its mean diameter‚ average deviation‚ average deviation of the mean‚ volume‚ mass and % percent
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