Magnetism & Electrodynamics
Same poles _____.
What is repel?
A type of radiation that has both a magnetic field and an electric field.
What is electromagnetic radiation?
Which wave variable represents the distance from the equilibrium point to a crest of a transverse wave?
Amplitude
What color would you get if you mix red, green, and blue light?
White
A semiconductor device that essentially acts as a one-way switch for current.
What is a diode?
The magnetic dipole has zero _______ _______.
What is magnetic poles?
What type of wave has a 1000 m wavelength?
What is radio wave?
What theory proved that electric and magnetic fields play symmetric roles in nature?
What is Maxwell's Theory?
Which type of wave on the electromagnetic spectrum has the smallest wavelength?
Gamma Rays
When delocalized electrons allow for heat movement through metals.
What is heat conduction of metallic bonds?
The small areas in magnetic substances where groups of atoms are aligned like poles of a magnet.
What are domains?
An antenna who's electric field is perpendicular to the earth's surface has ______ ______.
What is vertical polarization?
A passive electronic component which is capable of storing electrical energy in the form of magnetic energy.
What is inductor?
The color(s) a red object absorbs.
What are all other colors of light but red?
A semiconductor has a moderate _________ at the the fermi level.
What is a energy gap (bandgap)?
Moving electrical charges increases _____ fields.
What is magnetic?
Induces polar molecules in food to rotate and produce thermal energy in a process known as dielectric heating.
What is a microwave?
Separates color and light of an object through a prism to determine the composition of an object. (Each element has it's own unique separation.)
What is spectroscopy?
When an electromagnetic wave hits an object, the wavelength ______?
What is decreases?
Uses semiconductor material to produce light and color
What is a light emitting diode (LED)?
Electric power of superconductors is very high or very low compared to conductors?
What is very high?
In a microwave, this takes electricity from the power outlet and converts it to high-powered waves.
What is the magnetron?
A process by which a photon is either absorbed or emitted to satisfy conservation of energy when an atom moves to a higher or lower energy state
What is radiative transition?
Light waves in which the vibrations occur in a single plane.
What is polarized light?
In this type of laser, a voltage is applied to a tube to excite the atoms in a gas.
What is a gas laser?