Electromagnetic Spectrum
Color
Light Waves
Light Behavior
Real World Examples
100
What type of EM wave has the longest wavelength?
Radio waves
100
Why does a black shirt feel hotter in sunlight than a white one?
It absorbs more light energy
100
What happens when light bounces off a shiny smooth surface?
Reflection
100
What happens when light bounces off a surface?
Reflection
100
Which EM wave is used to broadcast radio and TV signals?
Radio
200
Which EM wave has the shortest wavelength?
Gamma Rays
200
What happens when white light passes through a prism?
It separates into a spectrum of colors (rainbow)
200
What happens when light bends as it enters a new medium?
Refraction
200
What type of lens causes light to refract to the focal point?
Convex lens
200
Which type of EM wave is used in night-vision goggles?
Infrared
300
What kind of EM waves allow you to see colors?
Visible Light
300
What color of light is reflected by a blue object?
Blue
300
What type of wave is light — mechanical or electromagnetic?
Electromagnetic
300
What happens to light energy when it’s taken in by an object?
Absorption
300
What type of EM wave is used to take pictures of bones?
X-rays
400
Which EM waves are used in cell phones and microwave ovens?
Microwaves
400
Why would the sun cast a shadow of a flag pole?
Light cannot pass an through an opaque object
400
The real distance of an object in a mirror is 13 cm. What is the apparent distance of the object?
26 cm
400
What causes a pencil to look “bent” when it’s placed in a cup of water?
Refraction
400
Which EM wave helps doctors kill cancer cells?
Gamma rays
500
Arrange these in order from longest to shortest wavelength: infrared, X-rays, visible light, radio
Radio → Infrared → Visible → X-rays
500
What color is created when all colors of light is being reflected.
White
500
Which pathway shows the correct pattern for the angle of refraction?
Path 3
500
Why do we see the color red on an apple?
It reflects the color red and absorbs all others
500
Why do we wear sunscreen?
To protect from ultraviolet (UV) radiation