3.1 The EM Spectrum (Regents Earth Science)

Multiple Choice

What is wavelength?

• The distance between a zero crossing and the next valley on a wave.

• The distance between a zero crossing and the next peak on a wave.

• The distance between a crest and a trough

• The distance between two successive like points on a wave. ( peak tp peak, or valley to valley)

Multiple Choice

What is the electromagnetic spectrum?

• consists of all the different wavelengths of electromagnetic energy, including radio waves, microwaves, infrared light, visible light, ultraviolet light, X-rays, and gamma rays.

• Spectrum produced by the emitted radiation

• When sunlight is passed through a prism, it gets dispersed into continuous bands of different colors

• all of this is part of the EM spectrum

Multiple Choice

How many wavelengths are pictured here from the left to right edge of the screen? (Remember the definition of a wavelength)

• 1 $$\lambda$$

• 2 $$\lambda$$

• 3 $$\lambda$$

• 4 $$\lambda$$

• 5 $$\lambda$$

Multiple Choice

Which letter corresponds to the wavelength of the wave?

• W

• X

• Y

• Z

Multiple Choice

What electromagnetic wave has the longest wavelengths and lowest frequencies?

• Microwaves

• Ultraviolet Rays

• Infrared Waves

• Radio Waves

Multiple Choice

These are the only wavelengths the human eye can see:

• X-rays
• Radio Waves
• Visible Light
• Gamma Waves

Multiple Choice

Why do all types of electromagnetic energy not reach the Earth’s surface?

• All types of EM energy do reach Earth's surface.

• Our atmosphere blocks out harmful energy like X-rays, gamma rays and most ultraviolet rays, infrared, and low energy radio waves

• No EM energy can penetrate through Earth's surface.

• Gamma rays are the only energy that can't reach the surface.

Multiple Choice

Which electromagnetic waves have the highest frequencies and the shortest wavelengths?

• microwaves

• visible light

• gamma rays

• x-rays

Multiple Choice

In which list are forms of electromagnetic energy arranged in order from longest to shortest wavelength?

• Microwave -> Radio wave -> Infrared rays

• Visible light -> x-ray -> radio wave

• Microwave -> infrared -> visibile light

• Infrared -> radio wave -> ultraviolet

Multiple Choice

These have the shortest wavelength and the highest frequency

• Microwave
• Visible Light
• Diamond Light
• Gamma Waves

Multiple Choice

What electromagnetic wave do humans emit as heat energy?

• infrared light

• ultraviolet light

• visible light

• microwaves

Multiple Choice

The type of EM wave that is used to cook food. It has a higher frequency (and shorter wavelength) than radio waves.

• radio

• microwave

• gamma

• visible light

Multiple Choice

Select the correct order of waves on the EMS from the longest wavelength to the shortest wavelength

• Radio, Micro, Infra, Visible, Ultra, X-ray, Gamma

• Gamma, X-ray, Ultra, Vis, Infra, Micro, Radio

• Vis, Micro, Infra, Ultra, X-ray, Gamma, Radio

• Micro, Radio, Vis, Infra, Ultra, X-ray, Gamma

Multiple Choice

Which of the following lists the electromagnetic waves in order of increasing wavelength?

• X-rays, visible light, radio waves
• gamma rays, microwaves, UV rays
• infrared rays, radio waves, x-rays

Multiple Choice

Which of the following has the highest frequency?

• TV

• microwaves

• the color indigo

• ultraviolet rays

Multiple Choice

Which color has the longest wavelength?

• Yellow

• Red

• Green

• Purple

Multiple Choice

Visible light emitted from a star or galaxy can be separated into a band of colors, called a ________.

• Spectrum (or spectral lines)

• Microwave

• Radiation

Multiple Choice

Which of the following refers to change of wavelength when object moves towards or away?

• Doppler effect

• chromatic aberration

• wave theory of light

• spectroscopy

Multiple Choice

What happens to an object's wavelength as the object moves towards you?

• The wavelength will vary

• The wavelength will be shortened

• The wavelength will be lengthened

• The wavelength will not change

Multiple Choice

What gases are in the unknown mixture?

• Gas B & Gas D
• Gas C & Gas B
• Gas A & Gas D
• Gas D & Gas C

Multiple Choice

What can you tell about this object's motion?

• Moving to the North (up).
• Moving to the South (down). 
• Moving to the West (left). 
• Moving to the East (right). 

Multiple Choice

What can you tell about the motion of this object?

• Moving left.
• Moving right quickly.
• Standing still. 
• Moving up slowly. 

Multiple Choice

In the Doppler Effect Lab, we mostly observed changes in what?

• Velocity
• Wavelength
• Shape
• The Mouse Clicks

Multiple Choice

What do the light waves of a galaxy that is moving AWAY from us look like?

• red shifted
• blue shifted
• green shifted
• yellow shifted

Multiple Choice

The unknown emissions spectra belongs to the element

• Hydrogen

• Mercury

• Neon

• Sodium

Multiple Choice

The unknown emissions spectra belongs to the element

• Hydrogen

• Mercury

• Neon

• Sodium

Multiple Select

By analyzing light received from a star, we learn...

• Chemical Composition

• Density

• Motion

• Size of the star

Multiple Choice

How do scientists know what stars are made of?

• The Doppler Effect

• Emission and Absorption Lines

• Radio Waves

• The Electromagnetic Spectrum