SHM

Question 1

Damping

Answer 1

The reduction in amplitude of an oscillating object with time, caused by energy lost as heat by friction.

Question 2

Critical damping

Answer 2

reduces the amplitude to zero in the quickest
time.

Question 3

Forced vibrations

Answer 3

An oscillation with an external, resultant driving force.

Question 4

Free Vibrations

Answer 4

An oscillation with no external driving force

Question 5

Overdamping

Answer 5

is when the damping force is too strong and it
returns to equilibrium slowly without oscillation.

Question 6

Simple Harmonic Motion

Answer 6

Motion where the acceleration of an object is directly
proportional, and in the opposite direction, to its displacement.

Question 7

Underdamping

Answer 7

is when the damping force is too weak and it
oscillates with exponentially decreasing amplitude.

Question 8

What are the conditions of SHM

Answer 8

● Acceleration must be proportional to its
displacement from the equilibrium point.
● It must act towards the equilibrium point.
● a ∝ -𝑥

Question 9

Resonance

Answer 9

The increase in amplitude of a wave when the driving frequency matches the natural frequency of the system.