AQA Physics Paper 1 with correct answers

sound energy - Energy caused by an object's vibrations thermal energy - The total energy of motion in the particles of a substance chemical energy - A form of potential energy that is stored in chemical bonds between atoms. nuclear energy - the potential energy stored in the nucleus of an atom electrical energy - Energy caused by the movement of electrons. light energy - Energy in the form of moving waves of light kinetic energy - energy of motion gravitional potential energy - potential energy that depends on the height of an object elastic potential energy - the energy of stretched or compressed objects conservation of energy - law that says energy cannot be created or destroyed, but can change forms uses of friction - - rubbing hands for warmth - break pads on bikes Efficiency = - Useful Energy Output / Total Energy Input Increase efficiency - - add lubricant - reduce friction internal energy - the sum of the kinetic and potential energies of all particles in the system Conduction - The direct transfer of heat from one substance to another substance that it is touching.