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Questions and Answers
Which of the following is the LEAST dense part of a wave?
Increasing the amplitude of a wave means increasing the $____________$ of the wave.
The wavelength of a sound wave is 20m and the frequency is 5 Hz. What is the wave speed?
Which of the following is NOT a mechanical wave?
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What is the amplitude of a wave?
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In a longitudinal wave, the parts where the coils are close together are called what?
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What is a characteristic of transverse waves?
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Which type of wave does not require a medium to travel?
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What is the highest point of a transverse wave called?
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Which statement about mechanical waves is true?
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How are surface waves different from transverse and longitudinal waves?
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What is the unit for wavelength?
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What does a wave carry from place to place?
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If the wavelength of a wave increased, what would happen to the frequency?
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What type of wave can travel through matter and empty space?
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Which one of these represents the highest frequency transverse wave?
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How is wave speed calculated?
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Study Notes
Waves and Wave Properties
- A wave is a rhythmic disturbance that transmits energy through matter or space.
- Waves carry energy, not matter.
- A wave exists as long as it has energy to carry.
Types of Waves
- There are two types of mechanical waves: transverse and compressional (or longitudinal) waves.
Transverse Waves
- In a transverse wave, the medium (material) moves back and forth at right angles to the direction the wave travels.
- Examples: Water waves, Light waves
Compressional (Longitudinal) Waves
- In compression waves, matter in the medium moves back and forth in the same direction that the wave travels.
- Examples: Sound waves
Surface Waves
- A surface wave is a combination of a transverse wave and a longitudinal wave.
- Particles of the medium vibrate both up and down and back and forth, moving in a circle.
Parts of a Transverse Wave
- Crest: the highest point of a transverse wave.
- Trough: the lowest point on a transverse wave.
Units of Measurement
- Unit for wavelength: meters (m)
- Unit for frequency: Hertz (Hz)
Key Wave Properties
- Amplitude: how much energy the wave carries; more energy means higher amplitude.
- Wavelength: the distance between a point on a wave and the nearest point just like it.
- Frequency: the number of wavelengths that pass a fixed point each second.
- Wave speed: wavelength x frequency.
Key Relationships
- As frequency increases, wavelength decreases.
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Description
Test your knowledge on waves and their properties. Learn about the characteristics of waves, how they transmit energy, the concept of a medium, and the different types of waves such as mechanical waves.
