Fundamental physics concepts

In order to study the kidney 's regulation of plasma volume, osmolality, and pH, the changes in urine flow rate, specific density, and urine pH of adult human subjects were measured. Subjects were assigned one of four beverage options: water, Gatorade, Coke, or nothing. Beverages of different compositions were used to study what effects does fluid intake have on urine volume and composition. Subjects fasted five hours prior to the experiment, in which the subjects were required to void and test their

1 ABSTRACT In this lab exercise, different approaches, Hydrometer, Pycnometer and refractometer, were used to determine the total solids or concentration of two unknown samples. Standard curve of density vs concentration and standard curve of specific gravity vs concentration were drawn with a series of known concentrations of 10%, 20%, 30% sugar solution by weight. With the standard curve and the specific gravity and refractive index of samples we obtained from the determination, we can calculate

Before starting my reflective journal during my placement, I decided to conduct research on Gibbs reflection model and De Bono’s 6 thinking hats before deciding to choose Gibbs reflection model to get the best out of my professional journey into becoming a teacher. Lia (2016) explains that the aims of Gibbs model is to challenge assumptions, and to encourage self-improvement by identifying strengths and weaknesses then action planning how to address them. This helped me during my placement as one

2.1 Wind and ocean interactions When wind is experienced it mainly impacts the surface waters in the ocean, these waters are subject to movement. Due to the effects of the Coriolis force air movement is deflected to the left in the southern hemisphere. A phenomenon known as the Ekman spiral is initiated once water at the surface begins to move. This surface movement initiates the bottom water layers to move as well to the left of the force that is driving it. In addition, the Ekman spiral movement

Name Melanie Mickens_______________________ Equipotential Go to http://phet.colorado.edu/simulations/sims.php?sim=Charges_and_Fields and click on Run Now. Complete Part 1 for chapter 18 and part 2 and 3 for chapter 19. Part 1: What is an equipotential line and how is this simulation related to work and energy? They are like contour lines on a map which trace lines of equal altitude. 1) Turn on “Show Numbers” 2) Place a positive 1 nano-coulomb charge near the center of the screen. 3)

In the sixties, Kulik had used the mechanism of Andreev reflection to explain how a metal carries dissipation-less current between two superconductors. Andreev later discovered that an electron incident on a superconductor with energy lying within the gap region gets reflected as a hole, which is the basic essence of Andreev reflection. \\ A charge of 2e is lost in the process which gets absorbed into the superconductor as a Cooper pairs. \\ The same process occurs for a hole as an incident particle;

Photoelectric effect a.k.a. Photo ionization is the emission of electrons such other free carriers when light is shone onto a material. Electron emitted in his manner can be called photo electrons. The Phenomenon is commonly studied in electronic physics, as well as in fields of chemistry, such as quantum chemistry or electrochemistry Part 1 : The Effect of Light on Model In this activity, you will study the effect light has when it strikes a metal surface. • Set the intensity to 100% (be sure the

Heat is the transfer of thermal energy between substances. Thermal energy is the kinetic energy of moving particles of matter. If you go camping, you usually build a fire to sit around at night. Have you ever wondered why a marshmallow cooks without touching the flame, why the smoke rises, or why water in a pan boils? Heat can move from one object to another in three different ways: conduction, convection and radiation. Some sources of heat may include the following: the sun, friction, and the

An increase in PCL triol content caused an increase in the relative intensity of the symmetric deformation of CH2 groups of PU films, observed in the range of 1475 – 1450 cm-1. Also, the symmetric stretching of N-COO and stretching of C-O-C bond in polyurethane are observed in the range of 1150 – 940 cm-1. A reduction in the relative intensity of the main PU absorbance peaks was observed in the samples after ultrasonic process, whereas the broad band in the region of 1100 – 1000 cm-1 maintained its

Practical 2.1- The Effect of Temperature on Membranes Objective To investigate the effect of temperature on membrane structure Introduction Beetroot Pigments Beetroots contain Betalains which are the red pigments present in the cell vacuole. Betalains are soluble in water and they contain nitrogen. Betalains extracted from beetroot is commonly used as food dye because it is not known to cause any allergic reactions. Beetroot Picture taken from http://tipdeck/how-to-cook-beet-root Structure