Drugs & Behavior EXAM I Study Guide Every correct answer is on the test…MC & Matching terms with definitions. No short answers… Terms: Psychopharmacology study of the action of drugs on living organisms Specific Drug Effects: result from physical and biochemical interactions of a drug with its target tissue Therapeutic effects- desirable effects of drug-receptor binding Side effects- undesirable effects of drug-receptor binding Non-specific Drug Effects: effects of a drug not based on
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nerve‚ 10 mV. The direct stimulation of the muscle required a higher voltage in order to get a contraction. This most likely occurs for two reasons. First is the fact that once a nerve reaches its threshold voltage‚ it perpetuates the action potential down the nerve to the muscle. This brings us to the second reason‚ the nerve branches out and reaches many thousand parts of the muscle‚ which all get depolarized. When stimulating directly‚ only the cells surrounding the electrode
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Explain why this is the case. The pressure will vary along the pipe because of several factors such as the existence of friction along the pipe walls causing energy loss and pressure variations‚ and various changes in pipe diameter affecting the potential and kinetic energy variations. Consequently‚ a change in pressure would also be experienced from these factors. Results | |Run 1 |Run 2 |Run 3
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Term 3 Uniform Circular Motion When a body moves in a circular path with a constant speed‚ it is said to undergo uniform circular motion. Although the speed is constant‚ velocity is continually changing‚ since it is constantly changing its direction of motion. Centripetal V V ac ac Acceleration is directed towards the centre of the circle and is therefore called “centripetal acceleration.” ac =v^2r ac =v^2r If T is the time taken for one revolution then: V = 2πrT ac =v^2r
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where the arm hits to stop at an 80° angle. Next we added the arm and tested it out. Finally we painted it and and topped that off with some splatter paint. Our catapult stores energy in the bungee cords at the bottom. When the ball is fired the potential energy in the bungees are converted into kinetic energy. The force of the bungee cords causes the bottom of the arm to fly back and the front of the arm to fly forward. The kinetic energy travels through the arm to the top of the lacrosse stick and
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components of a reflex arc. Receptor‚ Sensory neuron‚ Integration‚ Motor neuron‚ and Effector. Somatic reflexes activate skeletal muscle and autonomic reflexes activate smooth or cardiac muscle 2. Describe the events of an action potential. During the action potential part of the neural membrane opens to let + charged ions in the cell and let – charged ions out. This causes a rapid increase in positive nerve fiber. 3. What is presbyopia? An age related disease that makes it hard to focus
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It was hypothesised that as the drop height increases‚ the bounce height of all the balls will also increase. This is because the increasing drop height will result in an increase in the gravitational potential energy found within the balls that results in an increased transformation into kinetic will transform back into kinetic energy on the rebound; the by-product of which is a greater bounce height. The hypothesis was supported by the results. The results showed a clear trend where a steady increase
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The law of physics is basically the engine of the train. At the top of the hill‚ the cars possess a large amount of potential energy because they are elevated very high above the ground. The potential energy depends on the mass and the height of the object. As the cars are released they lose a lot of their potential energy but they gain kinetic energy because all of the potential energy is transferred into kinetic energy. The kinetic energy depends on the mass of the object and the speed of the
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software better. The experimental principle is the total energy of the kinetic and potential energy‚ elastic potential energy of the spring on the swing‚ is unchanged. So we do this experiment in order to prove that correctness of the above principles. Finally‚ the experimental results tell us that‚ although there are errors‚ the experimental principle is the total energy of the kinetic and potential energy‚ elastic potential energy of the spring on the swing‚ is unchanged. Objective
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Energy said that Energy cannot be created or destroyed; it may be transformed from one form into another‚ but the total amount of energy never changes. By winding the spring on your mousetrap car‚ you store energy in the spring as potential energy. This stored potential energy will convert energy into kinetic energy as the mouse-trap car begins to move. But there is friction and in order to overcome friction you have to do more work. Friction converts energy into heat and sound which takes away energy
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