a) Damping

bi) the effects of damping on an oscillatory system

damping = the reduction of the energy and amplitude of an oscillation due to resistive forces opposing the motion

light damping = a small damping force where the amplitude decreases exponentially with time and the period remains unchanged

critical damping = a large damping force where the object returns to its equilibrium position without oscillating in the shortest possible time

very heavy damping = a very large damping force where the object returns to its equilibrium position without oscillating

amplitude decreases during damping because energy is transferred out of the system