Physics Moment of a force: Moment of a force = force x perpendicular distance of the line if action if the force from fulcrum Law of moments: When a body is in equilibrium the sum of the clockwise moments about any point equals the sum of the anticlockwise moments about the same point. Centre of mass: Centre of mass is the point where whole mass of the body assumes to be concentrated. II. If the vertical line through the centre of mass is outside the base it will be a topples but if it’s passed
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2.4 Galileo Galilei: Sixteenth-Century “New Scientist” 1. In your own words explain why Albert Einstein considered Galileo to be the “father of modern science” Albert Einstein considered Galileo to be the father of modern science because of how many of Galileo’s discoveries have become the basis of today’s science. 2. Why did Galileo choose to use a ramp to perform his acceleration experiment? Technology during Galileo’s time was still quite primitive. His experiment which required him to drop
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PHYSICS OF EVERYDAY LIFE BY Neha arora DEPARTMENT OF APPLIED SCIENCES Science is around us everywhere. The water you are drinking has science in it; the house you are living in has science in it. Anywhere you go‚ whatever you do sciences will surely going to help you. When we talk about the educational science‚ there are many other subjects which come under science. These subjects are called branches of science. Some of them are physics‚ chemistry‚ biology‚ astrology‚ etc. Physics is more than
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This year in science‚ we were paired up in groups to build a car powered only by a rubber band. There was a lot of physics and thought put behind the planning of our car. The rubber band moved the car by storing up elastic potential energy which then turned into kinetic energy when released. Newton’s Laws of Motion also come in handy when thinking about how to keep the car moving. “An object in motion stays in motion.” There was also a lot of thought put into the wheels. We had to be aware of the
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M12/4/PHYSI/HP3/ENG/TZ2/XX 22126515 Physics Higher level Paper 3 Candidate session number 0 0 Examination code Friday 11 May 2012 (morning) 2 1 hour 15 minutes 2 1 2 – 6 5 1 5 INSTRUCTIONS TO CANDIDATES • • • • • • • Write your session number in the boxes above. Do not open this examination paper until instructed to do so. Answer all of the questions from two of the Options. Write your answers in the boxes provided. A calculator is required for this paper. A clean copy of the Physics Data Booklet is
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Spring 2017 AGRON 680 NAME: Exam III - 100 pts 1) Describe the difference between ‘sticky-ends’ and ‘blunt-ends’ produced using restriction enzymes. (5 pts) 2) A sample of DNA consisted of 20% guanine. What are the names and percentages of the other three nitrogenous bases. (5 pts) 3) Why are selection of promoters important in genetic engineering? (10 pts) 4) Describe one example of a specific promoter used in plant biotechnology? (5 pts) 5)
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Scheme of Work Please use these guidance notes as a checklist against your scheme(s) to ensure they are sufficiently detailed and specific.| 1. In the overview‚ have I adequately described the: ? location and resources being used? ? arrangements for individual and group tutorials? ? assessment arrangements‚ eg Awarding body‚ methods‚frequency and timing of assessments? ? ways in which the themes of Every Learner Matters are addressed?2. Have I clearly identified and well-planned induction
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Final Exam Preparation Ch-8: Securing Information Systems 1. Authentication – the process of identifying an individual‚ usually based on Password systems Tokens Smart cards Biometric authentication 2. DoS Attack – when hackers flood a network server or Web server with many thousands of false communications or requests for services to crash the network. The network receives so many queries that it cannot keep up with them and is thus unavailable to service legitimate requests. 3. MIS Audit
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Both the marking system and the grading system have their pros and cons. Whereas marks help students identify their exact scores‚ grades place students in predefined categories such as A and B. Under the marking system‚ even if two students are of similar calibre‚ one can ace out the other by a fraction of a point. This level of assessment encourages competitiveness. To score that one extra mark‚ students devote more time to study and pay attention to detail. The positive side-effect of this is
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Therefore the sum of all the energies in the system is a constant. TMEinitial=TMEfinal 3. Explain the basic ideas that govern the design and operation of a roller coaster. A roller coaster is operated and designed through the application of Physics. The law of Conservation of Energy governs the changes in a coaster ’s speed and height. Simply put‚ the higher an object is off the ground‚ the more potential energy it has - that is‚ potential to gain speed as it falls. As it falls toward the ground
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