Investigating Electromagnets Aim: The aim of the experiment is to investigate what affects the strength of an electromagnet. Hypothesis: The more coils and electricity the more powerful the electromagnet becomes. Prediction: When the voltage of electricity is increased I think that the nail will have more magnetism allowing it to attract more paper clips‚ because with more voltage going through the circuit‚ it can then make the electromagnet stronger. Variables: Independent The independent
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questions algebraically. You may sketch the graph of the parabola to help you visualize the flight of the ball. 1. A water balloon is tossed into the air with an upward velocity of 25ft/s. Its height h(t) in ft after t seconds is given by the function h(t) = -16t2 + 25t + 3. a) After how many seconds will the balloon hit the ground? b) What will the height be at t = 1 second? 2. A football is passed through the air and caught at ground level for a touchdown. The height h of the ball
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Functions and graphing functions Basics: A function is a rule that changes input into output A relation is any set of ordered pairs A function is defined as a set of ordered pairs in which no two ordered pairs have the same element A function must give exactly one unique output for each input Also called a mapping or simply a map The set of input numbers is called the domain The set of output numbers is called the range The set of all possible outputs is called the co-domain The range is generally
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Quadratic equation In elementary algebra‚ a quadratic equation (from the Latin quadratus for "square") is any equation having the form where x represents an unknown‚ and a‚ b‚ and c represent known numbers such that a is not equal to 0. If a = 0‚ then the equation is linear‚ not quadratic. The numbers a‚ b‚ and c are the coefficients of the equation‚ and may be distinguished by calling them‚ the quadratic coefficient‚ the linear coefficient and the constant or free
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Investigating Marketing Unit 3 Applied Business Introduction This piece of coursework is for my Unit 3 Applied Business. The coursework involves investigating marketing within a chosen business. The business I have chosen to investigate is Kitchen‚ a small business located in Snaith. The aim of my coursework is to evaluate the marketing strategy used by Kitchen to sell bakery and deli produce and also to operate a café. To investigate my chosen business I will give a brief background to Kitchen
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Osmosis is the diffusion of water molecules across a semi-permeable membrane. Diffusion is the movement of molecules from an area of high concentration‚ to an area of low concentration. So‚ Osmosis is the movement of water molecules from an area where there are lots of water molecules to an area where there are few water molecules. Our aim is to find the concentration of dissolved substances in the cells of a potato using Osmosis. I predict that the potato in the higher concentration of salt
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both sides of equation‚ which then leaves us with: x2 +16 = 8x + 36. The next step would then be to subtract 36 from both sides to get a result of. x2 -20= 8x. Finally we need to subtract 8x from both sides to get x2 – 8x – 20 =0. Now we have a quadratic equation to solve by factoring and using the zero factor. (x – ) (x + ) = 0 Since the coefficient of x2 is 1 we can start with a pair of parenthesis with an x in each. Since the 20 is negative we know there will be one + and one – in the binomials
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Quadratic Applications KEY Part 1: Geometry Since area is a square unit‚ often quadratic equations must be used to solve problems involving area. Draw a picture to model each problem. Solve each using any of the following methods: factoring‚ graphing‚ or tables. Show all work. 1. The length of a rectangle is 7 meters more than the width. The area is 60 square meters. Find the length and width. Let x=width and x+7=width
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Investigating Snells Law Investigating Snell’s Law Research Question: The effect that the angle of incidence of white light has on the angle of refraction from one transparent medium to another. Introduction: Snell’s law state: When light passes from one transparent medium to another the rays of light refract (bend). Snell’s law (Law of Refraction) states that: n*=sinⅈsinr=n2n1=V1V2 for the purpose of this experiment we will be proving that: sinⅈsinr=n2n1 or n1sinⅈ=n2sinr where
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Investigating a Crime Scene Denise Swank Bryant & Stratton College Criminal Justice: Research Paper Mr. Frank Chmarak December 2011 Investigating a Crime Scene On TV shows like "CSI‚" viewers get to watch as investigators find and collect evidence at the scene of a crime‚ making blood appear as if by magic and swabbing every mouth in the vicinity. Many of us believe we have a pretty good grip on the process‚ and rumor has it criminals are getting a jump on the good guys by using the
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