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Questions and Answers
What is a wave?
What is a wave?
A vibration or disturbance in space.
How are waves classified?
How are waves classified?
Waves are classified by what they move through and how particles move through them.
What material do waves move through?
What material do waves move through?
Medium
What are electromagnetic waves?
What are electromagnetic waves?
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Which of the following are types of electromagnetic waves? (Select all that apply)
Which of the following are types of electromagnetic waves? (Select all that apply)
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What are mechanical waves?
What are mechanical waves?
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Which of the following are types of mechanical waves? (Select all that apply)
Which of the following are types of mechanical waves? (Select all that apply)
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How are waves classified based on the way particles move through them?
How are waves classified based on the way particles move through them?
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How do particles move in a transverse wave?
How do particles move in a transverse wave?
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What is wavelength?
What is wavelength?
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What is amplitude?
What is amplitude?
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How do particles move in a longitudinal wave?
How do particles move in a longitudinal wave?
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What is compression?
What is compression?
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What is rarefaction?
What is rarefaction?
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What is frequency?
What is frequency?
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What is period (T)?
What is period (T)?
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What is wave velocity (v)?
What is wave velocity (v)?
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What happens when a wave hits a hard surface?
What happens when a wave hits a hard surface?
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What happens when a wave enters a new medium?
What happens when a wave enters a new medium?
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What happens when a wave moves around an obstacle?
What happens when a wave moves around an obstacle?
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What happens when two or more waves combine?
What happens when two or more waves combine?
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What is constructive interference?
What is constructive interference?
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What is polarization?
What is polarization?
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What is resonance?
What is resonance?
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Study Notes
Waves
- A wave is a vibration or disturbance in space.
- Waves transfer energy without transferring matter.
- Waves are classified by how particles move through them and the medium they travel through.
Electromagnetic Waves
- Travel through matter or empty space.
- Examples include radio waves, microwaves, infrared waves, visible light, ultraviolet rays, X-rays, and gamma rays.
Mechanical Waves
- Need a medium to travel through.
- Particles in the medium vibrate to transfer energy.
- Examples include water waves, earthquake waves, sound waves, and waves traveling through a rope or spring.
Types of Waves: Classification Based on Particle Movement
Transverse Waves
- Particles move perpendicular to the wave's motion.
- Wavelength is the distance from crest to crest or trough to trough.
- Amplitude is the distance from the midpoint of the wave to a crest or a trough.
Longitudinal Waves
- Particles move parallel to the wave's motion.
- Compression is a crowded area causing a high-pressure region.
- Rarefaction is a spread out area causing a low-pressure region.
Wave Characteristics
- Frequency (f): The number of waves that pass a fixed point per second, measured in Hertz (Hz).
- Period (T): The time it takes a wave to travel a distance equal to its wavelength, measured in seconds. (T = 1/f)
- Wave Velocity (v): The distance traveled by a wave crest in one period, measured in meters per second. (v = λ / T )
Wave Behavior
- Reflection: When a wave hits a surface it cannot pass through, it bounces back.
- Refraction: The bending of a wave as it enters a new medium due to a change in speed.
- Diffraction: The bending of a wave as it moves around an obstacle or passes through a narrow opening.
- Interference: When two or more waves combine;
- Constructive Interference: When waves combine to produce a larger wave.
- Destructive Interference: When waves combine to produce a smaller or nonexistent wave.
- Polarization: Filtering radiating light (moves in all directions) to allow only light traveling in one direction.
Resonance
- When one object vibrates another without touching, the two objects resonate at the same frequency, and the amplitude of the vibrating object increases.
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Description
This quiz covers the fundamental concepts of waves, including their definitions and classifications. Learn about electromagnetic and mechanical waves, as well as the differences between transverse and longitudinal waves. Test your knowledge on how waves transfer energy and the characteristics associated with different types of waves.