Tammy Thanaporn Amornkasemwong 1st September 2011 Science Period 8 Introduction: How much energy can be released from fuels? Combustion is the process of burning fuel in order to produce heat. The intention of this experiment is to find whether different fuels produce different amount of energy. In the process of combustion in this experiment, cheeto, half a cashew nut, wax candle and ethanol are used as fuels combust with lighter, as heat and oxygen. When the fuels combust, oxygen and fuels react, and heat released.
P4- Explain the Physiology of two named body systems in relation to energy metabolism in the body. In this essay I am going to be explaining how energy is made in the body and two body systems that help to produce this energy. “The metabolic systems are responsible for the chemical reactions within the body. These reactions are involved in the maintenance of the living organism and may be involved in reactions that break compounds down catabolic reactions or reactions which build compounds up anabolic reactions”. (King R 2012) They all require energy to work.
Energy is the capacity of a physical system to perform work. Energy exists in several forms such as chemical, electrical, heat, sound, light and mechanical. http://physics.about.com/od/glossary/g/energy.htm Energy can be defined in a variety of different ways. However, the most common way to define energy is ‘the ability to work’. All living organisms need energy to survive, all the basic functions of a human to survive need energy, to maintain them from not stopping.
Name: Dillan Taylor 1.3.1.2 - Human Homeostasis Vocabulary: dehydration, heat stroke, homeostasis, hypothermia, involuntary, thermoregulation, voluntary Prior Knowledge Questions (Do these BEFORE using the Gizmo.) A thermostat is a device that regulates the temperature inside a building. 1. What does a thermostat do if it gets too cool? ____blows out hot air_________ 2.
Sources of Energy According to Energy4me (2012), energy is embodied in everything and it comes from various sources and forms. There are two major classes of energy, kinetic and potential. Kinetic energy can be motion, light, heat, and sound, while potential energy can be nuclear, chemical, gravitational, mechanical, and electrical. The forms of energy that I rely on daily are light, heat, and electrical. The light energy that I use comes both from the sun and from electricity.
Calorimetry 23.04.2011 Introduction: An experiment to determine the efficiency of thermal energy gained while heating water by burning alcohol. Aim: To calculate and analyse the efficiency of the energy transfer when heating water in a calorimeter. Hypothesis: There will be an energy transfer when the alcohol is burned to heat the water. Materials: • Clamp • Spirit burner • Scales • Thermometer • Calorimeter • 30cm3 distilled water Method: • The clamp was set up to hold the calorimeter. • 30cm3 of distilled water was poured into the can.
Thermal Insulating Materials: A Self-Directed Experiment In our most recent lab, we determined the specific heat of a solid and learned the relative heat properties of substances having different specific heats. For this self-directed lab, we will determine what makes the best coffee-cup calorimeter and then determine which of various common substances is the best thermal insulating material is. We must first understand that thermal energy flows between two samples of matter at different temperatures. In order to prevent heat from escaping, thermal insulating materials are required to minimize the heat transfer by reducing the transfer of heat between two objects in direct contact, and the transfer of heat by electromagnetic waves. For this experiment we will be using cups of: metal, ceramic, plastic, and Styrofoam for our calorimeters.
What is the relationship of time to temperature in heat sterilization? Explain. Exercise 2: The autoclave 1. Define the principles of sterilization with an autoclave and with a dry heat oven. 2.
Many useful materials can be produced from crude oil. Crude oil can be fractionally distilled. Some of the fractions can be used as fuels. Biofuels are produced from plant material. There are advantages and disadvantages to their use as fuels.
The nuclear reaction of the sun travels outward and by the time it reaches the surface it is transformed into light energy (sunlight). When this energy reaches the Earth, it is in the form of heat and light. The heat from the sun is collected by one type of solar panel that is used to heat water for the home or to keep your house warm in the winter months. The light energy from the sun can be transformed into electrical energy to be stored or used immediately. The panel that converts light energy into electrical energy is called a Photovoltaic panel.