Physics def
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show | The net flow of charged particles
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show | The amount of charge that flows in 1 second when the current is 1 Amp
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State Kirchhoff’s first law | show 🗑
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show | The energy transferred per unit charge from electrical into other forms
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show | The energy transferred per unit charge to electrical from other forms
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show | The potential difference required to carry 1 Amp of current against 1Ω of resistance
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Define resistance | show 🗑
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show | The resistance between two points with a potential difference of 1V which has a current of 1A
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State Ohm’s Law | show 🗑
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Define resistivity, ρ | show 🗑
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Define power | show 🗑
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Define a kilowatt-hour | show 🗑
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show | The sum of the e.m.fs = sum of p.d. around a closed loop of a circuit. Conservation of energy
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What is the terminal p.d.? | show 🗑
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Define displacement | show 🗑
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show | Maximum displacement of a point/ particle caused by a wave motion
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show | The periodic time is the time taken to make one complete oscillation/ rotation
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show | The distance between two consecutive points on a wave that are in phase
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Define frequency | show 🗑
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show | The distance travelled by the wave (energy) per unit time
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What is the Principle of Superposition? | show 🗑
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show | In a region where wave trains from coherent sources cross/meet, superposition occurs. The pattern is formed from the vector sum of the individual displacements
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show | A region where wave trains from coherent sources meet, superposition occurs giving complete reinforcement of the waves, through the vector addition of the displacement of the individual waves
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Explain what destructive interference is | show 🗑
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show | If sources of wave are coherent there must be a constant phase difference between them and therefore they must have the same frequency. They must have also approximately the same amplitude
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Define path difference | show 🗑
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Explain what is meant by phase difference | show 🗑
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show | On a standing wave, a node occurs where the amplitude/displacement is (always) zero
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Explain what an antinode is | show 🗑
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Define the fundamental mode of vibration | show 🗑
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show | The frequencies at which a standing wave is produced in the given situation (it would have a set number of wavelengths given the situation)
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show | A quantum (set amount) of energy of EM radiation
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show | A unit of energy, it is the energy transferred to an electron when it is accelerated through a potential of 1V
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show | Minimum amount of energy needed to release an electron from the surface of a metal, symbol: Ф
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show | Minimum frequency that will cause photoemission from a material, hf=Ф
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show | The average displacement of charge carriers along the wire per unit time
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Created by:
Georgia11
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