Materials 2. Place the bunny turned in on itself on the ground (this enables the toy to launch itself upward by suction; elastic and potential energy). Do so 5 times 3. Measure the height traveled by the stopper using a meter stick per each trial. 4. Using the measurements and given formulas calculate the speed of the bunny on release using E(kinetic)=E(potential) III. Data table Trial Bunny Height (meters) 1. 1.29 2. 1.30 3. 1.32 4. 1.27 5. 1.31 Average 1.30 IV. Calculations: E(k)=E(p)
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Have you ever ridden on a rollercoaster and felt your heart drop as you were going downhill? Have you asked yourself how getting these feelings were possible? The answer is math. You may ask what math has to do with rollercoasters. Math is the reason for everything and anything that has to do with rollercoasters. Without math‚ it would be impossible to even be able to create one. To build a rollercoaster you need to be able to use numbers when talking about the costs‚ taking measurements‚ calculating
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are all traversed through the manipulation of its kinetic andpotential energy. For example‚ in most situations a roller coaster car will initially be pulled a large hill. As the suspense for the riders grows‚ so does the potential energy. Once at the top‚ the ride’s built up potential energy is turned into kinetic energy by the
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branch many times. One of the structures‚ however‚ is very thin and very long. This latter structure is most likely the neuron’s __________ ‚ which carries the __________. a. dendrite; efferent signal b. dendrite; afferent signal c. axon; action potential d. axon; receptors 2. If the myelin sheathing on neurons is absent or removed in a given individual‚ he or she will exhibit difficulties in speaking‚ vision‚ and balance because without myelin the a. quantity of neurotransmitters released into
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fires an impulse‚ called the action potential‚ down the axon. The impulse is protected and sped along its way by the myelin sheath‚ which is a layer of fatty tissue that surrounds the axon. Each neuron receives signals from many other neurons. Some signals are excitatory‚ and some are inhibitory. If the excitatory signals minus the inhibitory signals exceed a certain level‚ called the threshold‚ then the signals trigger an action potential. When the action potential reaches the axon terminals‚ called
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equipotential line and how is this simulation related to work and energy? 1) Turn on “Show Numbers” 2) Place a positive 1 nano-coulomb charge near the center of the screen. 3) In the lower left of the screen is a meter for indicating electric potential‚ in volts‚ created by the charge that you introduced. Record the voltage and turn on “Plot”. 3.7V 4) This line is much like a line on a geologic topo map. Explain the similarity. These two are sounded by the curve. 5) You are on
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equipotential line and how is this simulation related to work and energy? 1) Turn on “Show Numbers” 2) Place a positive 1 nano-coulomb charge near the center of the screen. 3) In the lower left of the screen is a meter for indicating electric potential‚ in volts‚ created by the charge that you introduced. Record the voltage and turn on “Plot”. 4) This line is much like a line on a geologic topo map. Explain the similarity. In a topo map it shows all the elevation points as a higher or lower
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Neuromuscular Junction 1. What insulates each muscle cell? __________endomysium_______________ 2. Synaptic vesicles in the axon terminal of a motor neuron contain what neurotransmitter? __________acetylcholine_______________ 3. An action potential in the axon terminal of a motor neuron opens what type of ion channels? ____________Voltage-gated Calcium_____________ 4. By what means of membrane transport does the neurotransmitter leave the axon terminal? ____________exocytosis_____________
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PHYSICS UNIT 2 Physics P2 for GCSE Additional Science or GCSE Physics AQA GCSE Science PHYSICS 2 Unit P2.1 Forces and their effects Appreciate that forces can cause changes to the shape or motion of an object. Not only can objects can move in a straight line at a constant speed but they can also change their speed and/ or direction (accelerate or decelerate). Be able to use/produce graphs can help us to describe the movement of an object. These may be distance-time graphs or velocity-time graphs
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bodily movement of the mass centre down the slope and rotational due to the wheel spin. Now the source of this energy is the loss in potential energy as the wheel moves down the slope. If it is reasonable to assume that friction effects are insignificant then no energy is lost. Thus the loss in potential energy becomes a gain in kinetic energy. Hence‚ Loss in potential energy = mgh‚ is equal to the Gain in kinetic energy = 0.5mv2 + 0.5Iω 2 where v = velocity of the mass centre down slope (m/sec) ω
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