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1. Latent Learning: Learning that occurs without obvious reinforcement and only becomes apparent when there is an incentive to demonstrate it. 2. Insight Learning: A sudden realization or “aha” moment in problem-solving, often involving the reorganization of information rather than trial-and-error learning. 3. Modeling: Learning by observing and imitating the behavior of others. 4. Vicarious Conditioning: Learning that occurs by observing others being rewarded or punished, influencing the observer’s behavior. 5. Social Learning Theory: A theory proposing that learning occurs through observation, imitation, and modeling, incorporating cognitive processes in addition to environmental influences. 6. Partial Reinforcement: A reinforcement schedule in which a behavior is not rewarded every time it occurs, making it more resistant to extinction. 7. Continuous Reinforcement: A reinforcement schedule in which every instance of a behavior is reinforced, leading to rapid acquisition but less resistance to extinction. 8. Learned Helplessness: A condition in which exposure to uncontrollable aversive events leads to a failure to act or escape, even when opportunities to do so are available. 9. Instinctive Drift: The tendency for an animal’s innate responses to interfere with conditioned behaviors. 10. Shaping: Gradually reinforcing successive approximations of a target behavior until the desired behavior is achieved. 11. Primary Reinforcer: A stimulus that is naturally reinforcing because it satisfies a biological need (e.g., food, water). 12. Law of Effect: Thorndike’s principle stating that behaviors followed by satisfying consequences are more likely to be repeated, while those followed by unpleasant consequences are less likely to occur. 13. Punishment: A consequence that decreases the likelihood of a behavior occurring again. 14. Reinforcement: A consequence that increases the likelihood of a behavior occurring again. 15. Operant Conditioning: Learning in which the consequences of a behavior determine the likelihood of its recurrence. 16. Habituation: A decrease in response to a stimulus after repeated exposure, demonstrating a basic form of learning. 17. Preparedness (Biological): The predisposition of certain species to learn associations that have survival value more easily than others. 18. Taste Aversion (Conditioned): A learned avoidance of a particular taste or food after it has been associated with illness or discomfort. 19. Counterconditioning: A technique where an undesirable response is replaced with a desirable one by associating the stimulus with a new response. 20. Higher-Order Conditioning: A process in which a conditioned stimulus becomes associated with a new neutral stimulus, creating a second conditioned stimulus. 21. Generalization: The tendency for stimuli similar to the conditioned stimulus to elicit the conditioned response. 22. Discrimination (Classical Conditioning): The ability to differentiate between similar stimuli and respond only to the conditioned stimulus. 23. Spontaneous Recovery: The reappearance of a conditioned response after extinction and a rest period. 24. Extinction: The weakening and eventual disappearance of a conditioned response when the conditioned stimulus is repeatedly presented without the unconditioned stimulus. 25. Conditioned Stimulus (CS): A previously neutral stimulus that, after being paired with the unconditioned stimulus, elicits a conditioned response. 26. Conditioned Response (CR): The learned response to the conditioned stimulus. 27. Unconditioned Stimulus (US): A stimulus that naturally triggers a response without prior conditioning. 28. Unconditioned Response (UR): The natural, reflexive response to the unconditioned stimulus. 29. Acquisition: The initial stage of learning during which the association between the conditioned stimulus and unconditioned stimulus is established. 30. Classical Conditioning: A learning process in which a neutral stimulus becomes associated with an unconditioned stimulus, resulting in a conditioned response.
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Three types of muscle tissue o Compare and contrast the three basic types of muscle tissue. • List four characteristics of muscle tissue. • List the functions of muscle tissue • Describe the gross structure of a skeletal muscle. o Organization of muscle, fascicle, muscle fiber, myofibril, myofilaments o Connective tissue sheaths of skeletal muscle: ▪ epimysium, perimysium, and endomysium. o Describe what origins and insertions are in a general terms • Describe the microscopic structure and functional roles of the myofibrils, sarcomere, sarcoplasmic reticulum, and T tubules of skeletal muscle fibers. o Myoglobin, glycosomes o M line, Z disc o Triad • Sliding filament model of muscle contraction • Composition of thick and thin filaments o Structure of Actin, Tropomyosin, Troponin, Myosin • AP, hyperpolarization, depolarization • Ion channel function • Refractory period • Explain how muscle fibers are stimulated to contract by describing events that occur at the neuromuscular junction. • Follow the events of excitation-contraction coupling that lead to cross bridge activity. • Describe cross bridge cycling • Define motor unit and muscle twitch, and describe the events occurring during the three phases of a muscle twitch. • Muscle Atrophy • Explain how smooth, graded contractions of a skeletal muscle are produced. o Temporal summation o Multiple motor unit summation (recruitment) ▪ Know the recruitment thresholds • Differentiate between isometric and isotonic contractions. • Describe three ways in which ATP is generated during skeletal muscle contraction. o Be able to compare and contrast the three modes of ATP generation o Know important molecules (i.e. creatine), whether oxygen is necessary, by-products (i.e. lactic acid) • Define EPOC and muscle fatigue. List possible causes of muscle fatigue. • Describe factors that influence the force, velocity, and duration of skeletal muscle contraction. • Describe the three types of skeletal muscle fibers (slow and fast oxidative, fast glycolytic) • Compare and contrast the effects of aerobic and resistance exercise on skeletal muscles • Compare the gross and microscopic anatomy of smooth muscle cells to that of skeletal muscle cells
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: Systems Engineering – Unit 3 Revision Study Guide Electrical & Energy Systems 1. The Engineering Process & Systems Thinking 1.1 The Engineering Process Stages You must know the sequence and purpose of each stage: 1. Investigate & design 2. Plan 3. Produce a solution 4. Test and diagnose 5. Evaluate and report 6. Modify and improve Once a system is built, the next stage is always “Test and diagnose”. 1.2 IPO Diagrams (Input–Process–Output) Used to analyse and explain systems. Example: Home Security Alarm • Inputs: Motion sensors, door switches, keypad input • Process: Microcontroller compares input to programmed logic • Outputs: Alarm siren, alert light, SMS notification Be ready to label inputs, processes, and outputs clearly. 2. Energy Sources & Sustainability 2.1 Renewable vs Non-Renewable • Renewable: Solar, wind, hydro, tidal, biomass, geothermal • Non-renewable: Coal, oil, gas, nuclear (alternative but not renewable) Geothermal energy comes from heated groundwater. 2.2 Advantages & Disadvantages (Exam Favourite) Wind Power – Advantages • Renewable • Zero greenhouse emissions during operation • Low operating cost • Scalable • Reduces fossil fuel dependence Coal Power – Disadvantages • High CO₂ emissions • Non-renewable • Air pollution • Thermal inefficiency • Environmental damage You will be asked to: • Compare energy sources • Justify one over another • Give an opinion with reasoning 3. Energy Transformations Know energy chains in order: Examples • Wind turbine: Kinetic → Mechanical → Electrical • Hydro power: Potential → Kinetic → Mechanical → Electrical • Solar PV: Radiant → Electrical 4. Efficiency Calculations HIGH PRIORITY 4.1 Formula Efficiency= Useful output energy Total input energy × 100% 4.2 Combined Efficiency Multiply efficiencies as decimals: Example: • Solar panel: 40% → 0.40 • Battery: 80% → 0.80 0.40 × 0.80 = 0.32 = 32% Combined efficiency = 32% 5. Electrical Fundamentals 5.1 Current Types • AC (Alternating Current): Household power, wind turbines • DC (Direct Current): Batteries, solar panels 5.2 Frequency & Period 1 𝑓 = 𝑇 • Australia mains electricity = 50 Hz • Direction changes 50 times per second Example: • Period = 0.005 s 𝑓 = 1 ÷ 0.005 = 200 Hz 6. Power, Work & Energy Calculations 6.1 Power 𝑊 𝑃 = or𝑃 = 𝑉 × 𝐼 𝑡 Example: • 1,000,000 J in 50 s 𝑃 = 1,000,000 ÷ 50 = 20,000 W 6.2 Work 𝑊 = 𝐹 × 𝑑 Example: • 2000 N × 10 m = 20,000 J 7. Batteries & Electrical Storage 7.1 Series vs Parallel • Series: Voltage adds • Parallel: Capacity (Ah) adds Example: • 4 × 12 V batteries in series = 48 V 7.2 Battery Runtime Total energy Time (h)= Power of load 8. Circuit Theory 8.1 Ohm’s Law 𝑉 = 𝐼 × 𝑅 8.2 Resistance • Series: 𝑅𝑇 = 𝑅1 + 𝑅2 + 𝑅3 • Parallel: 1 1 1 = + 𝑅𝑇 𝑅1 𝑅2 8.3 Capacitors • Series: inverse rule • Parallel: add values directly 9. Electrical Components & Symbols You must identify: • Resistor • Variable resistor (potentiometer) • Capacitor • Cell / Battery • LDR (light-dependent resistor) • LED • Diode • Thermistor • Switch types: SPST, SPDT, DPDT LED does not detect light LDR, phototransistor do 10. Transformers Formula 𝑉 𝑠 𝑁 𝑠 = 𝑉 𝑝 𝑁 𝑝 Example: • 40 primary, 800 secondary • Input = 240 V 𝑉 𝑠 = 240 × (800 ÷ 40) = 4800𝑉 Used to step up voltage → reduce current → reduce power loss 11. Power Transmission Why Voltage Is Stepped-Up • Reduces current • Minimises power loss as heat • Improves efficiency • Allows thinner cables • Enables long-distance transmission 12. Power Electronics Rectifier • Converts AC to DC H-Bridge + PWM • Technique: Pulse Width Modulation (PWM) • Purpose: Convert DC into simulated AC & control motor speed 13. Semiconductors • Doping: Adding impurities to silicon • Creates diodes and transistors • Enables controlled current flow 14. Safety & Standards Before using 230 V power tools: Must have a current electrical safety tag 15
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