Exploration of Light

Exploring Light & Sound

Light is an example of a ELECTROMAGNETIC TRANSVERSE WAVE, and does not need a Medium
- Medium- a substance a wave travels through
This means that Light can Travel through Space!

Aspects of Light

Multiple Choice

Does light require a medium to travel through space?

• Yes

• No

• It probably needs a large but a medium will do

Light is both a TRANSVERSE wave and a particle at the Same Time.

The particles are called PHOTONS

Important Experiment: Double Slit
* Young experiment and saw that light both creates wave and particle patterns!

Wave or Particle?

Multiple Choice

Light acts like

• a wave.

• a particle.

• Both a wave and a particle

• neither a wave nor a particle.

Multiple Choice

When light is described as having a dual nature, this means that light can...

• act in both the positive and negative directions.

• travel through space and through matter.

• behave as a particle and as a wave.

• transmit both energy and matter.

What are some examples of light as a wave & particle?

Color

The color WE SEE is the color of light that is REFLECTED

If light is being REFLECTED, so is the ENERGY of light.

Black= Absorbs all light
White= Reflects all light

Reflection

It involves the bouncing of light off of a reflective surface

​

The changing direction of a wave or particle going through media

El cambio de dirección de una onda que pasa a través de un medio.

Refraction/Refracción

What are some examples of light as a Wave?

​The spreading of a wave due to going through a particular medium

La propagación de una onda debido a su paso por un medio determinado.

Diffraction/Difracción

​When two or more waves come together to form a larger superposition

​Interference Patterns

​Patrones de interferencia

Cuando dos o más ondas se unen para formar una superposición más grande

What are some examples of light as a particle?

When light "knocks out" electrons due to their Kinetic Energy or Frequency

The Higher the Frequency, the More Kinetic Energy

​

Photoelectric Effect

Multiple Choice

When light above a specific frequency strikes a material, electrons are emitted. This is called the...

• Einstein effect

• photoelectric effect

• principle of electron energy

• solar wind

Multiple Choice

Which one of the following was not an example of light as a wave?

Cuando dos o más ondas se unen para formar una superposición más grande

• Photoelectric effect

• Interference Patterns

• Refraction

• Diffraction

Multiple Choice

Which process allows white light to be seen in a rainbow?

¿Qué proceso permite ver la luz blanca en un arco iris?

• Interference Patterns

• Reflection

• Refraction

• Photoelectric Effect

Multiple Choice

True or false, the photoelectric effect supports light as a particle, not a wave.

Verdadero o falso, el efecto fotoeléctrico admite que la luz es una partícula, no una onda.

• True

• False

Multiple Choice

The amount of electrons knocked out during the photoelectric effect is based on what?

¿En qué se basa la cantidad de electrones eliminados durante el efecto fotoeléctrico?

• Amplitude

• Polarity

• Frequency

• Electromagnetism

Dropdown

Light must have a minimum amount of ​

Select answer

to knock off an electron no matter how bright the light.

How can we describe light as a wave and a particle?

The higher light's frequency, the more INTENSE light is!

Frequency/Frecuencia

Light travels at one set speed, regardless if it is seen as a wave or a particle!

¡La luz viaja a una velocidad determinada, independientemente de si se ve como una onda o una partícula!

Speed/ Velocidad

Multiple Choice

Which terms are used to describe light as both a particle and a wave?

¿Qué términos se utilizan para describir la luz como partícula y como onda?

• Speed and Frequency

  Velocidad y Frecuencia

• Frequency and Mass

  Frecuencia y Masa

• Frequency and Density

  Frecuencia y Densidad

• Force and Mass

  Fuerza y Masa