Podcast
Questions and Answers
Water moves every time there is a ___________________.
Water moves every time there is a ___________________.
wave
We ___________, ______________, and ______________ in waves.
We ___________, ______________, and ______________ in waves.
see, hear, think
The distance from crest to crest is the __________________.
The distance from crest to crest is the __________________.
wavelength
Waves that come by often have a high ___________________.
Waves that come by often have a high ___________________.
How are high frequency waves different from low frequency waves?
How are high frequency waves different from low frequency waves?
Low frequency waves have a _______________ wavelength.
Low frequency waves have a _______________ wavelength.
High frequency waves have a _______________ wavelength.
High frequency waves have a _______________ wavelength.
All waves have a __________________ shape.
All waves have a __________________ shape.
Energy moves in _______________.
Energy moves in _______________.
We see different wavelengths as different ___________________.
We see different wavelengths as different ___________________.
What are 3 examples of electromagnetic waves?
What are 3 examples of electromagnetic waves?
The only difference between different electromagnetic waves is the ____________________.
The only difference between different electromagnetic waves is the ____________________.
Radio signals are __________________.
Radio signals are __________________.
X-rays have a lot of _______________ and can travel.
X-rays have a lot of _______________ and can travel.
Earthquakes can travel in ____________________.
Earthquakes can travel in ____________________.
The surface of the Earth is floating on molten ___________ ___________.
The surface of the Earth is floating on molten ___________ ___________.
Earthquake waves are called _________________ waves.
Earthquake waves are called _________________ waves.
Amplitude is the ________________ of the wave.
Amplitude is the ________________ of the wave.
The longer the whistle is the _____________ the waves and the ______________ the note.
The longer the whistle is the _____________ the waves and the ______________ the note.
Waves can carry ______________ from one place to another.
Waves can carry ______________ from one place to another.
Do all waves move up and down?
Do all waves move up and down?
Sonar uses sound waves to find things _____________________.
Sonar uses sound waves to find things _____________________.
What are 2 things that use sonar?
What are 2 things that use sonar?
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Study Notes
Waves Overview
- Waves are caused by disturbances in a medium, such as water.
- Humans perceive waves through sight, sound, and thought.
Key Wave Properties
- Wavelength is defined as the distance between successive crests.
- Frequency refers to how often waves pass a point in a given time; high frequency means waves are close together, while low frequency indicates they are spread farther apart.
- Low frequency waves typically have a long wavelength, whereas high frequency waves have a short wavelength.
- All waves share a similar shape, which is crucial for their classification and behavior.
Energy and Waves
- Energy is transmitted in wave form.
- Different wavelengths correspond to different colors in the visible spectrum, illustrating the relationship between light and wave behavior.
Electromagnetic Waves
- Examples of electromagnetic waves include light, x-rays, radio waves, microwaves, TV waves, radar, gamma rays, infrared, and ultraviolet rays.
- The defining characteristic of electromagnetic waves is their wavelength.
Sound and Seismic Waves
- Radio signals are a form of waves that carry information.
- X-rays possess a high level of energy, enabling them to travel through various materials.
- Earthquake activity generates seismic waves that can travel long distances through the Earth.
Earth and Waves
- The Earth’s surface floats on molten liquid rock, impacting how seismic activity is transmitted.
- Seismic waves are vital for understanding geological events.
Additional Wave Concepts
- Amplitude is the height of a wave and relates to the energy carried; greater amplitude signifies more energy.
- The length of a sound (such as a whistle) correlates with wave characteristics: longer whistles produce longer, lower notes.
- Waves serve as carriers of energy from one location to another.
Wave Types and Technologies
- Not all waves exhibit an up-and-down movement; various types of wave motion exist.
- Sonar technology utilizes sound waves to detect objects underwater, employed by dolphins, bats, submarines, and fishing boats.
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