Waves Properties

Waves Properties

Lawrence January 2022

​Learning Target

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PS4.A: Wave Properties: The frequency of a wave is related to its wavelength and the speed of a wave.

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Propiedades de onda: la frecuencia de una onda está relacionada con su longitud de onda y la velocidad de una onda.

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Success Criteria

Wave Engery

All waves are measured the same way

I can

1) Identify each part of a wave.

​ Identifica cada parte de una onda.

2) Calculate the frequency of a wave​

​ Calcular la frecuencia de una onda

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English Learners

We will shift to using more English

​ Using more English and less Spanish

Subject | Subject

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Key point

All waves are measured the same way.

Todas las ondas se miden de la misma manera.​

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​Vocab

Wave Longitudinal waves

Crest​ Transverse waves

Trough Mechanical Waves

Amplitude​ Electromagnetic waves

Wavelength

Frequency​

Wave spee​

Subject | Subject

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A disturbance that carries energy

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​Una perturbación que transporta energía.

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Wave

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Types of waves

Mechanical Waves

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Electromagnetic Waves​

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Travel through a medium such as air or water.

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Viajar a través de un medio como el aire o el agua.​

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​Mechanical Waves

Any form of matter such as air, water, and solids.

​Cualquier forma de materia como aire, agua y sólidos.

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Medium

Ocean Waves

Seismic waves

Sound waves​

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Types of mechanical waves

las olas del mar

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Ocean waves

From earthquakes

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De los terremotos​

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Seismic waves

Ondas sonoras

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Sound waves

Two waves

Electrical and magnetic​

​dos olas

electrico y magnetico

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Electromagnetic Waves

Do not need a medium to travel

No necesita un medio para viajar​

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Electromagnetic Waves

Travel at the speed of light

300,000,000 m/s

​Viajar a la velocidad de la luz

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Electromagnetic Waves

Radio waves

Micro waves

Infrared wave

Light

Ultraviolet

X-rays​

Gamma Rays​

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​Types of EM waves

Multiple Choice

What is a disturbance that carries energy?

¿Qué es una perturbación que transporta energía?

• Motion

• Force

• Wave

Multiple Choice

What type of wave?

¿Qué tipo de onda?

• Mechanical Wave

• Electromagnetic Wave

Multiple Choice

What type of wave?

¿Qué tipo de onda?

• Mechanical Wave

• Electromagnetic Wave

Multiple Choice

What type of wave?

¿Qué tipo de onda?

• Mechanical Wave

• Electromagnetic Wave

Multiple Choice

What type of wave is light?

¿Qué tipo de onda es la luz?

• Mechanical Wave

• Electromagnetic Wave

Multiple Choice

What type of wave?

¿Qué tipo de onda?

• Mechanical Wave

• Electromagnetic Wave

Transverse waves

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Longitudinal waves​

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Another way to classify waves

Wave motion is perpendicular to the direction of travel

​El movimiento de la onda es perpendicular a la dirección de viaje.

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Transverse waves

Wave motion is in the parallel to travel

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El movimiento de las ondas es paralelo al viaje.​

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​Longitudinal wave

Multiple Choice

What type of wave is an electromagnetic wave?

¿Qué tipo de onda es una onda electromagnética?

• Transverse

• Longitudinal

Multiple Choice

What type of wave is are sound waves?

¿Qué tipo de onda son las ondas sonoras?

• Transverse

• Longitudinal

Multiple Choice

What type of wave is are p-waves?

¿Qué tipo de onda son las ondas p?

• Transverse

• Longitudinal

Multiple Choice

What type of wave is are s-waves?

¿Qué tipo de onda son las ondas s?

• Transverse

• Longitudinal

​​Partes de una onda

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​Parts of a wave

The high part of a wave

​La parte alta de una ola

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​Crest

The low part of a wave

La parte baja de una ola

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Trough

The distance from crest to crest in meters.

​La distancia de cresta a cresta en metros.

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Wavelength

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​wavelength

The height of the wave from the rest point.

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​La altura de la ola desde el punto de reposo.

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Amplitude

The bottom wave has the greatest amplitude.

​La onda inferior tiene la mayor amplitud.

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Amplitude

Multiple Choice

Which waves has the greater amplitude?

¿Qué ondas tiene mayor amplitud?

• Top waves

• Bottom waves

• The have the same amplitude

  tienen la misma amplitud

Multiple Choice

Which wave has the greater frequency?

¿Qué onda tiene mayor frecuencia?

• Top wave

• Bottom wave

Multiple Choice

Which waves has the greater frequency?

¿Qué ondas tiene mayor frecuencia?

• Top waves

• Bottom waves

• The have the same frequency

  Ellas tienen la misma frecuencia

Multiple Choice

How many wave crests are shown on the graph?

¿Cuántas crestas de olas se muestran en el gráfico?

• 2

• 3

• 4

Multiple Choice

What is the amplitude of this wave?

¿Cuál es la amplitud de esta onda?

• 2 m

• 1 m

• 1.25 m

Multiple Choice

What is the wavelength of this wave?

¿Cuál es la longitud de onda de esta onda?

• 2 m

• 1 m

• 1.25 m

The number of waves that pass a given point in one second.

​El número de ondas que pasan por un punto dado en un segundo.

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​Frequency

More blue waves pass the line in the same amount of time as the red waves.

​Más ondas azules pasan por la línea en la misma cantidad de tiempo que las ondas rojas.

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​Frequency

The blue waves have the greater frequency.

​Las ondas azules tienen la mayor frecuencia.

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​Frequency

Frequency is measure in hertz.

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Hertz

If wave speed stays the same, shorter waves have a greater frequency.

​Si la velocidad de la onda permanece igual, las ondas más cortas tienen una frecuencia mayor.

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Hertz

Multiple Choice

Which waves have the greater frequency?

¿Qué ondas tienen mayor frecuencia?

• Top waves

• Bottom waves

• The same frequency

20 waves pass a point in 10 seconds. What is the frequency of the waves?

​20 ondas pasan por un punto en 10 segundos. ¿Cuál es la frecuencia de las ondas?

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Calculating Frequency

​20 waves / 10 s = 2 waves / sec

or 2 Hertz​

Multiple Choice

4 waves pass a point in 1 second. What is its frequency?

4 ondas pasan por un punto en 1 segundo. ¿Cuál es su frecuencia?

• 0.25 Hz

• 1 Hz

• 4 Hz

Multiple Choice

4 waves pass a point in 4 seconds. What is its frequency?

4 ondas pasan por un punto en 4 segundos. ¿Cuál es su frecuencia?

• 0.25 Hz

• 1 Hz

• 4 Hz

​Loud sounds have a high amplitude

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Amplitude affects sound

Bright light has a higher amplitude

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Amplitude affects Light

Low frequency = low pitch

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High Frequency = high pitch​

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Frequency affects sound

Low frequency = Red

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High frequency = Violet​

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Frequency affects the color of light

Low frequency = Red

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High frequency = Violet​

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Frequency affects the color of light

Multiple Choice

Which sound has a higher pitch?

¿Qué sonido tiene un tono más alto?

• Low frequency

• High Frequency

Multiple Choice

Which color has a higher frequency?

¿Qué color tiene una frecuencia más alta?

• Blue

• Red

Multiple Choice

Which sound has a higer amplitude?

¿Qué sonido tiene mayor amplitud?

• Loud Sound

• Soft Sound

Multiple Choice

Which light source has a lower amplitude?

¿Qué fuente de luz tiene menor amplitud?