Unit 3- Simple Harmonic motion

Question 1

Definition of Simple Harmonic Motion

Answer 1

Simple harmonic motion is an oscillatory motion in which the restoring force and the acceleration are proportional to, and in the opposite direction to, the displacement from the rest position.

Question 2

Describe the effect of underdamping on a system

Answer 2

In an under-damped system, the object will oscillate back and forth around an equilibrium point, losing Energy each cycle until it comes to rest at equilibrium.

Question 3

Describe the effect of overdamping on a system

Answer 3

In an over-damped system, the object experiences a large resistance to motion, taking a long time to reach the equilibrium position (if at all).

Question 4

Describe the effect of critical damping

Answer 4

In a critically damped system, there is a frictional Force which is just enough to bring the oscillating object to rest at equilibrium quickly.