Description and Theories A. Principles and Theories Used to Obtain our Result An conventional spring, when subjected the weight (w=mg) of an object at one of its terminations, will displace a certain distance, x, with an equal and opposite force, F, being created in the spring of which opposes the pull of the weight. This conventional spring will become significantly distorted if it is subjected to a large enough weight and the force, F, will only be able to return the spring to its original configuration once the burden is removed. The force that will restore the spring to its original configuration is directly proportional to the displacement that occurred. The following equation represents this relationship where k denotes the spring constant or stiffness of the spring, F=-kx Since x symbolizes the displacement or change in the length of the spring the above equation can now be surmised in the following manner, F=mg=-k∆l This new form makes it evident that a linear proportion exists between the plot of F as function of changing in length, ∆, thus confirming the spring does in fact obey Hooke’s Law.
Restate your predictions that were not correct and correct them, giving with supporting data from your experiment that supports your corrections. My first prediction was correct that when the arm goes from resting to flexing, the amplitude and frequency of sEMG spikes will
For most purposes Newton's laws of gravity apply, with minor modifications to take the general theory of relativity into account. 2. Inertia - A property of matter by which it continues in its existing state of rest or uniform motion in a straight line, unless that state is changed by an external force. 3. Potential Energy - Is the energy stored in an object due to its position in a force field or in a system due to its configuration.
2. What was your prediction about the results of each factor tested in your two lab procedures? Explain your predictions based on your knowledge of the dissolving process, collision theory, and reaction rates. I was thinking the balloon would inflate at a minimal pace but didn’t think the bottle would crush as result of it. Keeping the amount of water and time was imperative and double checking to make sure everything is right was prudent 3.
_______in homeostasis, negative feedback is used in the same way, by increasing the stimulus until it is excessive and then decreasing or stopping___________________________________________________ _______________________________________________ Gizmo Warm-up To survive, an organism must be able to maintain stable internal conditions in a changing environment. This process is called homeostasis. The Human Homeostasis Gizmo™ allows you to explore how the human body stays at a nearly constant temperature in different conditions. Notice the Air temp. and Body temp.
As long as we were able to identity two out of the three unknown variables, we could use the formula: PV=nRT to calculate the unknown value. 2. With regards to the actual procedure, what were the advantages and disadvantages to the gas law method. Advantages: -The lab quest gave us on point readings and measurements without human error -With each method, it is easy to replicate
Experiment Le Chatelier’s Principle Abstract The purpose of this experiment is to observe Le Chatelier’s Principle. Le Chatelier’s Principle is to show us how a system remains at equilibrium when it is put under stress and how it will correct itself to relieve that stress and re-establish equilibrium. The equilibrium reaction can be pushed out of equilibrium by applying various methods such as a change in concentration, temperature, volume, or partial pressure, the equilibrium of the product will shift to counteract the change to establish a new equilibrium. Experiment and Observation I gathered together my materials. Tap water, toothpicks, distilled water, crushed ice, 2 coffee spoons, rubber bands, 2 beakers 50 mL, magnifier, dual, pencil marking, thermometer, well plate 24, E.D.T.A., 0.15 M (Na2EDTA) -2 mL in pipet, Hydrochloric Acid, 6 M – 2 mL in pipet, Magnesium Chloride, 2 M – 3 mL in pipet, Phenolphthalein Solution 1% - 0.5 mL in Pipet, 2 pipet, Empty short stem, Sodium Bisulfate Crystals – 0.5 g in vial, Sodium Bisulfate, 0.1 – 4 mL in pipet, Sodium Hydroxide, 1 M – 2 mL in Pipet, Sodium Sulfate, 1 M -2 mL in pipet, Thymol Blue Indicator 0.04% -0.5 mL in pipet.
Henry would then start an IV and begin to run fluids. He would most likely give multiple liters to replenish fluids lost, but the primary goal of this fluid challenge is to make the Pt hemodynamically stable with a b/p at a minimum level of
In what sense is the Newtonian universe simpler than Ptolemy’s? Suppose observations had shown that the two did equally well at explaining the data. Construct an argument to say that Newton’s universe should still be preferred. The idea that the universe works mechanically, like a clock. It is called Newtonian, because it began from the Newtonian discovery of the laws of gravity and world motion.
In simple terms , a law describes what nature does under certain conditions, and will predict what will happen as long as those conditions are met. Can not be changed. Theories have a few similarities to a scientific law, but is the opposite when it comes to the rest. Theories are a body of knowledge and explanatory concepts that seek to increase our understanding a major phenomena in nature (Moore, 1984). A scientifically accepted general principle supported by a substantial body of evidence offered to provide an explanation of observed facts and as a basis for future discussion or investigation (Lincoln et al.,1990).