screen with 1.0 volts? No a flat line was observed 2. What was the threshold voltage‚ or the voltage at which you first saw an action potential? 3.0 volts 3. How do the tracings generated with higher voltages compare to the one that was generated at the threshold voltage? The tracings traveled in the same fashion but had a higher peak of the action potential as you increased the threshold voltage 4. What reason can you give for the change? The increase in voltage creates the nerve to depolarize
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Part 1 Roller coasters Additional notes: GPE = m x g x h KE = m x v₂ The main energy transfers that happen as a car travels along the track from the start of the ride to the end: [1]The rollercoaster car gains gravitational potential energy (GPE) as it travels to the top. Once over the top‚ the car gains speed as GPE is transferred to kinetic energy (KE). As it travels to the top of another loop‚ KE is transferred to GPE. Not all the energy is transferred to or from GPE – some is transferred
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Signals Traveling in Neurons Two opposing ideas about the nervous system * Reticular theory ( the nervous system consisted of a large network of fused nerve cells) * Neuron theory ( the nervous system consisted of distinct elements or cells * Discovery of staining led to the acceptance of neuron theory. Staining is a chemical technique that caused nerve cells to become colored so they stood out from surrounding tissue * A way of electricity is transmitted in groups of neurons‚ such
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V. Analysis and Conclusion In this experiment we studied the elastic properties of the spring‚ the Hooke’s Law and the total work done on the spring when it is being stretch. Also‚ this experiment tackles the elasticity and deformation of a material that obeys the Hooke’s Law which states that “Within the elastic limit of a body‚ the deforming force is directly proportional to the elongation of the body.” Our experiment is to determine the force constant of the spring. The calculations used throughout
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this lab is to show how potential energy and kinetic energy is shown and transferred using a model rollercoaster. This lab also demonstrates the Law of Conservation of Energy. II.Introduction Potential and Kinetic energy have a very big relationship. The Law of Conservation of Energy states that “Energy cannot be destroyed or created‚ but can be transformed or transferred.” This lab will help demonstrate this law and show the conversion between Kinetic and Potential energy throughout the rollercoaster
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The Effects of Temperature on the Extracellular Firing Rate of Action Potentials in the Ventral Nerve Cord of the Periplaneta Americana Andrew Goldsmith (andrew.goldsmith@uconn.edu)‚ Tuesdays 1-4PM Section: 2 (Partner: Ana Charalambides) Abstract In polikiotherms it is known that the amount of locomotion varies based on the environmental temperature. We believe that this is caused by differences in the neural activity. We therefore investigated how temperature changes affect the extracellular
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muscle response: twitch with 3 phases (latent‚ contraction‚ relaxation) 3. effects of increasing stim. Intensity on muscle force: forces increases then stays constant 1. Nervous Sys. I: Action Potential; Ion Channels; Membrane Potential 2. Nervoous Sys. II: Synaptic Potentials and Cellular Integration‚; Synaptic Transmission 3. Endocrine Sys.: Biochemistry‚ Secretion and Transport of Hormones; Actions of Hormones 4. Muscular Sys.: Neuromuscular Junction; Muscle Metabolism 5
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Energy Lab On November 13th‚ we did a lab to learn about energy. The definition of Kinetic Energy is energy of movement. The definition of Gravitational Potential Energy is energy in an object due to its positioning. The question that we had to answer was whether of not we could calculate the Gravitational Potential Energy and Kinetic Energy of various objects in different locations. To do this lab we had to first weigh the given objects. For this time‚ we weighed : a marble‚ a bouncy ball‚
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team members‚ however‚ reminded us that our eleven credits was better than many of the other teams in the league. Adding credits to teams in the league would only force us to pay more for players in free agency. This would also hurt our leverage in potential trades with teams that desperately need credits. Although it may seem counterintuitive to not want more credits‚ our team has a goal of winning the Super Bowl for our fans and value winning
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When assessing whether an industry has long-term attractiveness‚ there are many important factors that must be evaluated. The first is the industry’s potential for growth. If the industry doesn’t have a good growth potential it may not be profitable for very long or the competition may be too fierce for the market potential. If competitive forces are squeezing industry profitability to inadequate levels and if the competition appears destined to grow stronger‚ the industry will be less
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