Potential energy

of these resources are finite including fossil fuels such as coal and oil. For the 21st century, coal, gas and oil are no longer recommended as we’re moving towards infinite renewable resources such as solar and wind power. The electricity and heat energy derived from these resources is used in our homes for every day uses such as cooking, lighting, air conditioning, refrigeration etc (see…

This study analyzed the differences and the relationships of the isolated sciatic nerve in regards to the compound action potential and the neuromuscular junction stimulations of the Rana pipens gastrocnemius. A total of five exercises were used to identify the effects on the stimulation of the sciatic nerve and the gastrocnemius. A dissection for both labs were performed to isolate the nerve and to isolate the gastrocnemius. Both experiments used LabChart to perform various stimulations on the…

way to transfer heat energy from the chip to the water beaker. The heat transfer was coming from burning a baked lay and through our calorimeter heat energy was pushed out. Our experiment was taken one step further to continue to modify and build a better calorimeter. Overall the purpose was to find the best way for energy to be captured. Literature Review Anything around us is generally matter. Everything we touch, the buildings we see, and the cars we ride in. “Energy is the ability to…

traditional water heater is about 10 years, you may need a complete replacement. Fortunately, replacing with a tankless model offers numerous benefits. Energy Efficiency A standard model ewater heater uses energy continuously, whether you are using hot water or not, but a tankless model only uses energy when it is necessary. This reduces your home’s total energy usage, benefiting the environment and reducing your…

(1951) reported 26 kJ/mol in the study of oxidation kinetics of galena (PbS) while Stenhouse and Armstrong (1952) reported an activation energy of 20 kJ/mol for the alkaline oxidation of pyrite. Koslides and Ciminelli (1992) suggested that during alkaline oxidation of sulphides, there is a change from chemical (activation energy > 40 kJ/mol) to diffusion (activation energy < 40 kJ/mol) control as the rate determining step when temperature is above 100°C This led them to conclude that the…

including all forms of matter and energy and interaction going on between them. Space and time are two basic correlates of universe. In these correlates there is matter and energy scattered around. There is interaction going on between matters, energies and between matter and energy on account of endless processes. These processes are governed by universal laws as explained in the previous chapter. Universe consists of three elements: (a) space and time, (b) matter and energy and (c) the…

in the skin detect heat and cold (temperature). • Photoreceptors: Light energy stimulates photoreceptors. Our eyes contain photoreceptors, called rods and cones, which absorb light and allow us to sense different levels of light and shades of colour. Rods are found near the edge of the retina, require less energy to activate, and help in low-light situations (scotopic vision). Cones are more centralized, require more energy, and activate to different wavelengths, which gives things…

physics, energy is usually described as the ability of a system to perform work. However, this definition is often challenged because of the many different forms energy can hold. There have been definitions derived which are more suitable to certain contexts. Thermal energy is a more specific energy explored in this investigation process. Thermal energy is one of the types of energy which can be defined by ‘the ability to perform work’. It is the sum of the kinetic and potential energy…

Introduction This practical was an investigation involving the use of a tennis ball and a meter ruler. The tennis ball was held and dropped at a specific height above the ground. The height of the bounce was then measured. This investigation was carried out to find out whether the efficiency of the bounce varied with the height of release of the tennis ball. If the bounce were 100% efficient, then the tennis ball would have bounce off the ground and return to the starting height. Research…

Resting Membrane Potential When a neuron is not transmitting a signal, it is at rest. During resting potential, between the inside and outside of the neuron there is an ion displacement. The inside of the neuron is negative in comparison to the outside. The outside of the cell has a positive charged sodium and negatively charged chlorine, while potassium, positively charged, is more heavily charged inside the cell. This difference in the charge of sodium, chloride, and potassium maintains the…