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WorksheetsEM SPECTRUM/WAVES
Total questions: 54
Worksheet time: 27mins
Cell phones and televisions use this type of EM wave. It has the longest wavelength with the lowest frequency.
radio wave
tv wave
Gamma wave
ultra violet
The electromagnetic spectrum shows a family of EM waves. How was it arranged?
in alphabetical order
in order of use and application
in order or frequency and wavelength
in order of luminosity of radiation emitted
Which of the following is the major source of EM waves on Earth?
air
atom
bulb
sun
Which of the following is true about EM waves?
a wave which does not undergo polarization
a waves that consists of longitudinal waves of an interchanging vibration of electric and magnetic field
a wave that consists of two perpendicular transverse waves
a wave which cannot travel through a vacuum
In which of the following EM waves does the highest frequency found?
X-rays
Ultraviolet light
Radio waves
Visible light
Which of the following does the arrangement of EM waves in the EM spectrum indicates?
as the wavelength of EM waves increases, its frequency also increases
there is an inverse relationship between the wavelength and frequency of EM waves
there is a direct relationship between the frequency and wavelength of an EM waves
the wavelength of an EM wave is directly proportional to its speed.
All of the following are correct arrangement of EM waves from longest to shortest wavelength, EXCEPT:
radio waves, microwaves, infrared, visible light
infrared, visible light, ultraviolet, x-ray
ultraviolet, infrared, microwaves, radio waves
visible light, ultraviolet, x-ray, gamma ray
Ionizing radiation can create electrically charged ions in the materials it strikes. Which of the following is a source of ionizing materials?
infrared rays
radio waves
gamma rays
microwaves
Move along the spectrum from radio waves to gamma rays, which of the following decreases?
energy
frequency
speed
wavelength
Move along the spectrum from radio waves to gamma rays, which of the following increases?
frequency and energy
Frequency and wavelength
speed and energy
wavelength and energy
Move along the spectrum from radio waves to gamma rays, which of the following remains the same for all EM waves?
Energy
Frequency
Speed
Wavelength
which of the following has the longest wavelength?
infrared rays
gamma rays
radio waves
UV rays
Highest frequency
infrared rays
gamma rays
radio waves
UV rays
Highly penetrating wave
infrared
gamma rays
radio waves
uv rays
which of the following EM waves Can be blocked by using sunscreen
infrared
gamma rays
radio waves
UV rays
which of the following EM waves Can be felt as heat
infrared
gamma
radio waves
UV rays
Which of the following EM wave is responsible for the production of vitamin D in the human body?
Microwaves
UV rays
Visible light
X-rays
Bone fractures can be detected easily through the use of which of the following EM wave?
Infrared rays
Microwaves
UV rays
X-rays
Which of the following is responsible for the food production of plants through the process called photosynthesis?
Infrared rays
Radiowaves
UV rays
Visible light
Which of the following EM waves have wavelengths between that of microwaves and visible light?
Radio waves
UV rays
X-rays
Infrared rays
a light energy strikes an object and it was blocked by that object. Which of the following statements is NOT true for this situation
the light was absorbed by the object
the object is opaque
the light was refracted
a shadow might be formed
when light passes through water droplets in the clouds, it spreads out into band of colors and eventually a rainbow is formed. what property of light is illustrated in this situation?
diffraction
refraction
reflection
polarization
light will be blocked and absorbed by the following except
human body
spoon
plywood
hollow blocks
background radiation can be emitted by the following, EXCEPT:
sun
radio
cosmic rays
alpha and beta particles
Max Planck hypothesized that:
light behaves as a particle and wave
light is a stream of particles or corpuscles
light is a form of EM radiation
light is transmitted as discrete bundlesof energy or quanta of light than waves
which of the following is true about polarization of light?
polarization describes the orientation of the vibrationsofwaves
light being a particle behaves like an energy that can oscillatein many directions
circularly polarized light consists of two perpendicular waves of unequal amplitude which differ in phase by 90 degrees
elliptically polarized light consists of two parallel waves of equal amplitude
if light falls on a clean surface of metal, electrons will be emitted on the surface. this phenomenon is known as:
total internal reflection
visual illusion
photoelectric effect
blackbody radiation
which of the following statement about light is not true?
light has dual nature
if light travels in another medium, it slows down and bends
if nothing is to interfere with light waves, they will travel in a straight line
light is longitudinal wave
which of the following does not belong to the group?
sun
moon
candle flame
glowing light from bulb filament
what light phenomenon will take place when light waves bounce off from the surface of an object?
transmission
absorption
refraction
reflection
ocean looks shallower than they are due to
interference
diffraction
reflection
refraction
the velocity of light in air is 3x108 m/s and 2x108. find the index of refraction2.38
.35
.67
1.50
given the wavelength of EM waves, which of the following has the highest energy?
5.64x10-7 nm
1.5x10-6 m
6.00x10-7 nm
3.00x10-5 m
what is the wavelength of light waves if their frequency is 6x1012 HZ?
6.0x10-5 m
5.0x10-5m
5.05x105 m
5.5x10-5m
microwaves are commonly used in the following except
mobile phones
thermal imaging
radar
satellite communications
