How Light Travels

What is light?

• Light is a type of sound wave.

• Light is a form of solid matter.

• Light is a form of electromagnetic radiation.

• Light is a type of weather phenomenon.

How does light travel?

• Light travels in a zigzag pattern at a slow speed

• Light travels in a straight line at a speed of 299,792 kilometers per second in a vacuum.

• Light travels at the speed of sound

• Light travels by bouncing off of objects

What is the speed of light?

• 500,000,000 meters per second (m/s)

• 1,000,000,000 meters per second (m/s)

• 100,000,000 meters per second (m/s)

• 299,792,458 meters per second (m/s)

What are the different types of light waves?

• Heat waves, sound waves, ocean waves

• Red light, blue light, green light

• Sunlight, moonlight, starlight

• Visible light, ultraviolet light, infrared light, microwaves, radio waves, X-rays, and gamma rays

What is the electromagnetic spectrum?

• The electromagnetic spectrum is the range of all types of electromagnetic radiation.

• The electromagnetic spectrum is the range of all types of visible light.

How does light interact with different materials?

• Light interacts with different materials by creating heat

• Light interacts with different materials by producing sound

• Light interacts with different materials by changing its color

• Light can interact with different materials through reflection, absorption, transmission, and scattering.

What is reflection of light?

• Reflection of light is the process by which light changes color when it hits a surface.

• Reflection of light is the process by which light passes through a surface and continues in the same direction.

• Reflection of light is the process by which light is absorbed by a surface and disappears.

• Reflection of light is the process by which light bounces off a surface and changes direction.

What is refraction of light?

• Refraction of light is the scattering of light as it passes through a medium.

• Refraction of light is the absorption of light by a medium.

• Refraction of light is the reflection of light off a surface.

• Refraction of light is the bending of light as it passes from one medium to another.

How does light create shadows?

• Light creates shadows when it is blocked by an opaque object.

• Shadows are created by the absence of light

• Light creates shadows by bending around objects

• Shadows are formed when light is reflected off an object

What is the role of light in vision?

• The role of light in vision is to provide warmth to the eye

• The role of light in vision is to enable the eye to see by stimulating the retina and creating electrical signals that are sent to the brain.

• The role of light in vision is to regulate blood flow in the body

• The role of light in vision is to create sound waves in the ear