RESEARCH QUESTION How does the glucose concentration effects the time taken for the potassium permanganate to decolourise from purple to colourless ? HYPOTHESIS The higher the glucose concentration the shorter the time taken for the potassium permanganate to decolourise from purple to colourless. VARIABLES VARIABLE | UNITS | RANGE | METHOD FOR CONTROL | INDEPENDENT VARIABLE-Concentration of glucose solution | % | 5%10%15%20%25%30% | Different glucose concentration are tested | DEPENDENT VARIABLE-The
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surface‚ accelerating because of an unbalanced force. The rate at which an object travels down the slope is dependent upon how tilted the slope is; the greater the tilt of the plane‚ the faster the rate which an object will slide down. Thus‚ if a physics cart is released on at a steep slope‚ the acceleration of the cart is expected to roll down the slope at a faster rate. As shown in figure 1‚ when a cart is released on an inclined plane‚ there’s always two to four forces acting upon the cart – the
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CGHS Physics Trial HSC Examination 2008 Page 1 Student number ……………………….. Teacher …………………………………….. Cheltenham Girls High School 2008 Higher School Certificate Trial examination Physics TASK WEIGHTING: 35% General Instructions • Reading time – 5 minutes • Working time – 3 hours • Write using black or blue pen • Draw diagrams using pencil • Board-approved calculators may be used • A data-sheet‚ formulae sheets and Periodic Table are provided at the back of this paper Total marks –
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APPENDIX A The Physics of Bungee Jumping Outcomes: 1. Analyze natural and technological systems to interpret and explain their structure. (116-7) 2. 3. 4. 5. 6. 7. 8. 9. Describe and evaluate the design of technological solutions and the way they function‚ using energy principles. (116-6) Analyze and describe examples where technological solutions were developed based on scientific understanding. (116-4) Distinguish between problems that can be solved by the application of physics-related technologies
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1. The first electronic digital computer (called ENIAC - the Electronic Numerical Integrator and Calculator) was developed in 1946 and contained over 18‚000 vacuum tubes. | 2. The leg muscles of a locust are about 1000 times more powerful than an equal weight of human muscle. | 3. The cosmos contains approximately 50‚000‚000‚000 galaxies. | 4. There are between 100‚000‚000‚000 and 1‚000‚000‚000‚000 stars in a normal galaxy. | 5. Sound travels about 4 times faster in water than
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Name __________________________________ 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
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6. Applications * Is it possible to add heat to a body without changing its temperature? Yes. It is possible to add energy to a body (in the form of heat) and not raise its temperature by causing a phase change. When you heat ice it takes energy to convert it from ice to water‚ but does not change the temperature of the body until it is all converted. The principle behind this is what we call latent heat. It refers to the energy (or heat) required to change the state of a substance without changing
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(8. Sc. Pass‚ Honours and Engineering Students) Dr. Giasuddin Ahmad. B. Sc. Hons. M. Sc. (Dhaka)‚ Ph. D. (Glasgow) Professor‚ Department of Physics Bangladesh University of Engineering and Technology‚ Dhaka. and Md. Shahabuddin‚ M. Sc. M. ALibrarian‚ Bangladesh University of Engineering and Technologr‚ Dhaka. Formerly of the Department of Physics. Ahsanullah Engineering College and Bangladesh University of Engineering and Technology‚ Dhaka. FOURTH EDITION ThoroughLg reuised bg ProJ
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Consolacion College Sto. Tomas‚ Biñan City‚ Laguna S.Y. 2013-2014 Basic Education Department PHYSICS Activity Sheet Rating: ________ Name: Loren B. Matulac Date : November 09‚ 2013 Yr. & Section: IV- Perseverance Teacher: Mrs. Pacita J. Yapsangco “Magnetic Field of a Coil” Experiment 2.5 I. Objectives: To produce a strong magnetic field just by looping the wire into coils II
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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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