Physics Flashcards
What Is A Use Of Radio Waves?
Listening To TV
What Is A Use Of Microwaves?
Mobile Phones or Heating Up Food
What Is A Use Of Infrared Rays?
Night Vision Equipment, Heat Sensors & Thermal Imaging
What Is A Use Of Ultraviolet Rays?
Getting Vitamin D
What Is A Use Of X-Rays?
Seeing Teeth and Broken Bones
What Is A Use Of Gamma Rays?
Medicine (Radiotherapy)
Such As Cancer Therapy
True or False Questions
The sun radiates both visible and invisible energy.
True
True or False Questions
Communicating with satellites is an application of gamma rays.
False
Communicating with satellites is an application of microwaves.
True or False Questions
Both X rays and gamma rays have higher frequencies than ultraviolet rays.
True
True or False Questions
Radio waves, microwaves, and ultraviolet waves all have longer wavelengths than visible light
False
Radio waves, microwaves, and ultraviolet waves all have shorter wavelengths than visible light
True or False Questions
X rays have more energy than gamma rays
False
X rays have less energy than gamma rays
True or False Questions
Microwaves are a type of infrared wave
False
Microwaves are a type of radio wave
True or False Questions
Electromagnetic radiation includes only visible light waves.
False
Electromagnetic radiation includes many visible light waves.
True or False Questions
Radiant energy spreads out its source in all directions.
True
Fill In The Blank!
The __________ represents the different forms of electromagnetic radiation.
Electromagnetic Spectrum
Fill In The Blank!
Light is classified as __________ because electrical and magnetic fields vibrate in a light wave.
Visible Light
Fill In The Blank!
__________ is energy that travels by radiation. An example of this is light.
Electromagnetic Radiation
Fill In The Blank!
Heat radiation, also known as __________, cannot be seen by your eyes but can be felt by your skin.
Infrared Waves
Fill In The Blank!
Microwaves are one type of ___________.
Radio Waves
Fill In The Blank!
____________ can be used to communicate with satellites.
Microwaves
Fill In The Blank!
Because ______________ have the highest energy of all electromagnetic radiation, they are the most damaging to human tissue.
Gamma Rays
Fill In The Blank!
Compared to all other types of electromagnetic radiation, radio waves have the lowest _______________.
Frequency
Fill In The Blank!
An overexposure to ___________ can result in sunburns and skin cancer.
Ultraviolet rays
Which of the types of radiation has the highest frequency?
Gamma Radiation
Which type of waves is generally associated with radio waves?
long-wavelength waves
How does the frequency of electromagnetic radiation change as the wavelength of the radiation decreases?
It increases
