A-level PHYSICS Paper 1 Latest Exam With Actual Question and Complete Solution 2024

A-level PHYSICS Paper 1 Latest Exam With Actual Question and Complete Solution 2024 Stopping Potential - ANSWER The work done by the potential difference in stopping the fastest moving electrons Electron Volt - ANSWER The kinetic energy that an electron has after being accelerated from rest through a potential difference of 1 volt 1 eV = - ANSWER 1.6x10^-19 Joules Ground State - ANSWER The lowest energy level that an electron can occupy in an atom (n=1) Excitation - ANSWER When an electron gains the exact amount of energy needed to move up to a higher energy level in an atom Ionisation - ANSWER The process when an electron gains enough energy from a photon to leave the ground state of the atom that it's in Ionisation Energy - ANSWER The amount of energy needed to remove an electron from the ground state of an atom Radian - ANSWER The angle that is equal to the arc length divided by the radius of the circle 2pi radians = 360 degrees Angular Speed - ANSWER The angle an object rotated through per second (omega = 2pi x frequency) Frequency - ANSWER The number of complete revolutions per second Light Damping - ANSWER Stops oscillations over many time periods (just air resistance etc) Heavy Damping - ANSWER Stops oscillations in few time periods, amplitude gets much smaller each period (like adding a parachute or something)