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Questions and Answers
What is the general definition of a wave?
What is the general definition of a wave?
- A type of particle that can only travel in a straight line
- A vibration or disturbance that remains in one place
- A vibration or disturbance that travels from one point to another and carries energy (correct)
- A type of energy that can only be transferred through a vacuum
What determines the wave propagation speed?
What determines the wave propagation speed?
- The tension and rigidity of the medium
- The density and temperature of the medium
- The frequency and amplitude of the wave
- The wavelength and frequency of the wave (correct)
What is the formula to calculate wave speed?
What is the formula to calculate wave speed?
- v = f / λ
- v = λ × f
- v = f × λ (correct)
- v = λ / f
What affects the speed of sound waves?
What affects the speed of sound waves?
How do higher temperatures affect the speed of sound?
How do higher temperatures affect the speed of sound?
What is the difference between mechanical and electromagnetic waves?
What is the difference between mechanical and electromagnetic waves?
What is characterized by the vibration of the particle perpendicular to the direction of wave propagation?
What is characterized by the vibration of the particle perpendicular to the direction of wave propagation?
What occurs when the vibration of the particle is parallel to the direction of wave propagation?
What occurs when the vibration of the particle is parallel to the direction of wave propagation?
What are the two ways to categorize waves based on the direction of propagation?
What are the two ways to categorize waves based on the direction of propagation?
What is the unit of frequency in the formula for wave speed?
What is the unit of frequency in the formula for wave speed?
Which of the following is an example of a mechanical wave?
Which of the following is an example of a mechanical wave?
What is the term that describes the movement of waves?
What is the term that describes the movement of waves?
Which factor does not affect the speed of a wave in a cord?
Which factor does not affect the speed of a wave in a cord?
What is the unit of wave speed in the formula for wave speed?
What is the unit of wave speed in the formula for wave speed?
What is the characteristic of a wave with a vibration perpendicular to the direction of wave propagation?
What is the characteristic of a wave with a vibration perpendicular to the direction of wave propagation?
Which of the following is an example of a wave that can propagate without a medium?
Which of the following is an example of a wave that can propagate without a medium?
What is the term that describes the amount of energy carried by a wave?
What is the term that describes the amount of energy carried by a wave?
Which factor affects the speed of sound waves in a material?
Which factor affects the speed of sound waves in a material?
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Study Notes
Wave Basics
- A wave is a vibration or disturbance that travels from one point to another and carries energy.
- Wave propagation refers to the movement of waves.
Wave Characteristics
- All waves have frequency, amplitude, wavelength, and wave speed.
- Wave speed is quantified by the equation v = f × λ, where v is the wave speed in meters per second (m/s), f is the frequency in hertz (Hz or 1/s), and λ is the wavelength in meters (m).
Factors Affecting Wave Speed
- Tension affects wave speed in a cord, with increased tension resulting in faster wave speeds.
- Mass per unit length of a cord also affects wave speed, with increased mass resulting in slower wave speeds.
- Rigidity and density of a medium affect the speed of sound waves, with higher rigidity and lower density resulting in faster speeds.
- Temperature affects the speed of sound, with higher temperatures resulting in faster speeds.
Wave Categorization
- Waves can be categorized based on the presence or absence of a medium for propagation.
- Mechanical waves (e.g. sound waves) require a medium to propagate.
- Electromagnetic waves can propagate with or without a medium.
Wave Types
- Transverse waves are characterized by vibrations perpendicular to the direction of wave propagation.
- Longitudinal waves occur when vibrations are parallel to the direction of wave propagation.
Wave Basics
- A wave is a vibration or disturbance that travels from one point to another and carries energy.
- Wave propagation refers to the movement of waves.
Wave Characteristics
- All waves have frequency, amplitude, wavelength, and wave speed.
- Wave speed is quantified by the equation v = f × λ, where v is the wave speed in meters per second (m/s), f is the frequency in hertz (Hz or 1/s), and λ is the wavelength in meters (m).
Factors Affecting Wave Speed
- Tension affects wave speed in a cord, with increased tension resulting in faster wave speeds.
- Mass per unit length of a cord also affects wave speed, with increased mass resulting in slower wave speeds.
- Rigidity and density of a medium affect the speed of sound waves, with higher rigidity and lower density resulting in faster speeds.
- Temperature affects the speed of sound, with higher temperatures resulting in faster speeds.
Wave Categorization
- Waves can be categorized based on the presence or absence of a medium for propagation.
- Mechanical waves (e.g. sound waves) require a medium to propagate.
- Electromagnetic waves can propagate with or without a medium.
Wave Types
- Transverse waves are characterized by vibrations perpendicular to the direction of wave propagation.
- Longitudinal waves occur when vibrations are parallel to the direction of wave propagation.
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