The aim of this investigation is to design, build and test a sensor.
Sensors Coursework Aim and Hypothesis The aim of this investigation is to design, build and test a sensor, which has an appropriate: * Sensitivity * Response time * Resolution * Range * Minimum random/systematic error The sensor I have designed operates by detecting the intensity of light using an LDR (light Dependant Resistor), also known as a photoconductor, in a Potential Divider circuit. In this experiment my input variable will be the mass of milk powder added to 750ml of water. My outcome variable will be the potential difference across the normal resistor (which changes as the resistance varies). I will be measuring this using a multi-meter of resolution 0.01V. This will be positioned as shown in the circuit diagram below. Background A potential divider is a resistor or a chain of resistors connected in series in an electrical circuit. It is used to obtain a known fraction of the total voltage across the whole resistor or chain. When a variable resistor, or potentiometer, is used as a potential divider, the output voltage can be varied continuously by sliding a contact along the resistor. Devices like this are used in electronic equipment to manipulate factors such as volume, tone, and brightness. In this case I have used a potential divider comprising of an LDR and a fixed resistor. I have used two components that have very similar resistances to
Sports Nutrition
Sports Nutrition Professional athletes need to understand sports nutrition because they depend on their bodies for their livelihood. When food is introduced into the body, it becomes fuel. The rate at which the food is burned is calculated according to its fuel content or calorie content. The calories that athletes eat come from a mix of: * Fats * Protein * Carbohydrates You need different needs for each calorie source depending on your sport. If your sport if long-lasting endurance like marathon cycling you have a greater need for fuel then if your sport is less strenuous. As a rule, athletes should balance their diet so that they consume foods high in carbohydrates, low in fat and moderate in protein content. The ideal distribution should be: * Fats 25% * Protein 12% to 15% * Carbohydrates 60% or
Nutrition For Sport.
Gemma Brookhouse Nutrition For Sport In this assignment I am going to identify and detail vitamins, minerals, carbohydrates, protein and fats. I am going to identify the types of food that these nutrients are found in and the functions that these nutrients have upon the body. I will give positive and negative examples in consuming them. I will then identify an elite performer and using secondary resources I will detail their recommended nutritional requirements based upon their age, gender and sport. Once I have gathered this information I will discuss the factors that can and/or do affect the athletes nutritional intake. Finally I will analyse the relationship between diet and health within sport. Task One Nutrient Type Effect On Body Where It Is Found Vitamins Vitamins are classified into two groups, water-soluble and fat-soluble. Vitamin b and c are found in water-soluble. Water-soluble vitamins help release energy from carbohydrates, help in metabolism, they are healthy for your skin, and they assist in the production of haemoglobin and reed blood cells. Water-soluble vitamins also have a negative affect on the body. If you do not have enough water-soluble vitamins then you will be fatigued, depressed and irritable, you will get irritations and itching of your skin, cracks around your mouth, tongue and nose, weakening of your body tissues skin, gum and
Science Case Study
I am going to attempt to answer the above question. In order to do so, I will split this report into the following six sections. Introduction Here I will briefly explain what size zero is and the for and against points of it being banned. Articles on Size Zero. In this section I will look at real life situations of people that have experienced size zero and other real life articles. What is Size Zero? Here I will say what size zero is classed as, what dangers it can cause and other facts. Diets I will compare two different diets; one healthy and one size zero. I will also explain the important facts needed for exercise. Conclusion In this section I will give my opinion on Size Zero and sum up all I have discovered in my case study. Sections. Page 1 Contents Page Page 2 Introduction Page 3 Articles on Size Zero Page 4 What is Size Zero? Page 8 Diets Page 11 Conclusion Page 14 Size zero is a much debated subject in the press
Work Experience
Research and Planning Logo design is a company that has been working for 30 years; I have chosen this work experience placement because I am interested in working in the graphic design industry when older. In the process of choosing this placement I have not rejected any other placements because the manager of Logo Design and Marketing is a friend. Whilst doing the work experience I will be working with a team of other people in an office and working closely to the other employees. The employees in the office I will be working in range from age nineteen and upwards. The manager and manageress also work onsite along with their employees. From the work experience placement I have been given I am hoping to achieve the knowledge and understanding of the job, a graphic designer. I am hoping to realise out of the work experience if I want to route my career towards a graphic designer. To complete the work I am going to listen to the employer so that he can give me hints and tips about work. I will give good impressions to the employer so that he could give me more complex tasks other than photocopying and making tea and coffee. I have devised a timeline of events that I will be writing in the orange booklet as the week progresses. The Activity During the one week placement (starting 2nd July 2007) I went to Logo Design and marketing. At the placement I was told to make a
