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Questions and Answers
What is the term used to describe the movement of a body from its mean position to the maximum displacement in an oscillation?
What happens to the amplitude of oscillation for a body oscillating in the air?
In the context of oscillation, what does the time period refer to?
What is the relationship between frequency (v) and time period (T) of an oscillating body?
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What unit is used to measure the frequency of oscillation?
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Which term refers to rapid to-and-fro movements of a body about its mean position?
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In the context of sound production, what is responsible for producing sound in humans?
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What aspect of motion is described as 'from A to B, B to C, and then from C to A' in an oscillation?
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What feature distinguishes one complete oscillation from another?
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'Sound is produced by a vibrating body.' What type of motion in a vibrating body leads to sound production?
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Study Notes
Key Concepts of Oscillation
- Displacement in Oscillation: The movement from the mean position to the maximum displacement is referred to as amplitude.
- Amplitude in Air: When a body oscillates in air, its amplitude may gradually decrease due to air resistance, leading to damping of the oscillation.
- Time Period: The time period is the duration taken to complete one full cycle of oscillation.
- Frequency and Time Period Relationship: Frequency (ν) is inversely related to the time period (T), expressed as ν = 1/T.
- Unit of Frequency: The unit for measuring frequency is Hertz (Hz), which represents cycles per second.
- Rapid Motion: The term for rapid to-and-fro movements of a body about its mean position is called vibration.
Sound Production
- Source of Sound in Humans: Sound is produced by the vibrating vocal cords in humans.
- Oscillation Motion Description: The motion described as 'from A to B, B to C, and then from C to A' outlines the path of oscillation over a complete cycle.
- Complete Oscillation Feature: A complete oscillation consists of a distinct amplitude, which differentiates it from another complete oscillation.
- Type of Motion for Sound: The vibratory motion of a body is responsible for sound production, leading to pressure waves in the air.
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Description
This quiz covers the concept of oscillations in physics, specifically focusing on the movement of a bob from one point to another to complete one oscillation. It also explains the concept of amplitude, which is the maximum displacement of a body from its mean position.
