| what is the photon model of light? | states that light energy moves through space as discrete packets of electromagnetic energy |
| how does voltage related to acceleration? | the bigger the voltage the faster the acceleration |
| what is the relationship between photons and electrons? | one to one relationship , one electron absorbs one photon at once |
| what is work function? | the energy required for an electron to escape from the surface of a metal |
| what is threshold frequency? | the minimum frequency required for photoelectrons to be emitted as the electron escapes form the metal |
| what is stopping voltage? | the smallest voltage which will prevent the photocurrent from flowing |
| what happens if a particle moves thorough a pd towards a plate of the same charge? | it will decelerate and if the deceleration is great enough particles will stop and reverse direction. |
| how does intensity of the light effect the photoelectric effect | the rate of emission of photoelectrons increase as intensity increases |
| how does frequency of the light effect the photoelectric effect? | the max kinetic energy of the photoelectrons increases as frequency increases |
| how does an LED work? | work by accelerating electrons with an electric field to give them energy , they then release that energy as photons |
| what might electrons do to become more stable? | spontaneously emit energy to move to the ground state |
