Chap 10: Oscillations

Question 1

● Amplitude:

Answer 1

Magnitude of the maximum displacement from its equilibrium position.

Question 2

● Period:

Answer 2

Time taken for one complete oscillation.

Question 3

● Frequency:

Answer 3

Number of oscillations per unit time.

Question 4

● Angular frequency:

Answer 4

Product of the frequency of oscillation and 2π.

Question 5

● Phase:

Answer 5

State of the oscillation of a body at a particular time.

Question 6

● Phase difference(btw oscillators and btw oscillations) :

Answer 6

○ Difference in the state of oscillation between two oscillators at a particular instant.

○ Difference in the state of oscillation for one oscillator at two instances in time.

Question 7

● Simple Harmonic Motion:

Answer 7

motion of a body such that its acceleration is directly proportional to its displacement from its equilibrium position and its acceleration is always opposite in direction to its displacement from the equilibrium.

Question 8

● Damping:

Answer 8

The decrease in the amplitude of oscillation with time due to energy loss.

Question 9

● Forced oscillations:

Answer 9

An oscillatory system driven by an external periodic force

Question 10

● Resonance:

Answer 10

When the frequency of the driving force equals the natural frequency of the oscillating system. Maximum energy transfer occurs and the amplitude of oscillations of the system is at its maximum.