Maximum kinetic energy
What Maximum kinetic energy means in Physics A-Level, as defined for AQA, OCR.
Definitions of Maximum kinetic energy
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Reference: AQA
The kinetic energy of the fastest emitted electrons, where slower electrons have lost more energy before escaping.
The kinetic energy of an emitted photoelectron that loses no energy in escaping, given by KEmax = hf − φ.
Topics that use Maximum kinetic energy
- The photoelectric effect (AQA A-Level)
- The photoelectric effect (OCR A-Level)
Related terms
- Intensity
- Photon
- Threshold frequency
- Work function
- Conservation of energy in photon absorption
- Independence of KEmax from intensity
- Intensity as photons per second
- One-to-one interaction
Using Maximum kinetic energy in the exam
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