X-Rays
Discovery of X-Ray
Electromagnetic Spectrum
Electrocution
100
The source of electrons in an x-ray tube is the filament and it has a ________ charge.
What is negative?
100
He discovered x-rays?
Who was Rontgen?
100
This is the distance between one point of a wave to the same point in the next wave.
What is wavelength?
100
Accidental exposure to high voltage causes about ___ deaths each year in the United States.
What is 300?
200
A high voltage source in the x-ray tube sends the electrons at a very high speed from the ______ to the ______.
What is cathode to anode?
200
The first x-ray image (rontgenogram) was a picture of this.
What is his wife's hand.
200
This is the bottom of a wave.
What is the trough?
200
The intensity of the electric current is measured in ___ and ____.
What are volts and amperes?
300
99.8% of the kinetic energy of ________ in an x-ray tube is converted into heat; the remaining 0.2% is converted into x-rays.
What are electrons?
300
Wilhelm was awarded this first prize to be given in the category of physics.
What is the first Nobel Prize?
300
The stars and galaxies produce this.
What are electromagnetic waves?
300
These on the skin are helpful to resist the flow of electricity.
What are calluses?
400
The tungsten wire in the cathode from which electrons are emitted is called the ______.
What is filament?
400
X-rays differ from light rays in this way.
What is X-rays have higher frequency of vibration than light rays?
400
This wave occurs when the motion of the medium is at a right angle (perpendicular to the wave.)
What is transverse wave?
400
Compartment syndrome occurs when ____ has become compressed.
What are arteries?
500
This emission is the emission of electrons due to the heating of the cathode.
What is thermionic?
500
Wilhelm discovered the x-ray in this year.
(You must come with 5 years to get the answer correct!)
What is 1895?
500
Theses waves are used by insects to detect nectar.
What is ultraviolet?
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500
In many countries outside the US, the standard household current is ____ volts.
What is 220?
