Physical Science 1118 Test
infrared
Below visible spectrum
_____ emit both electrical energy and magnetic energy as they jump to a lower orbital.
Electrons
______ metals are easily magnetized because they contain unpaired electrons.
Ferromagnetic
ultraviolet
above visible spectrum
Why does a yellow banana look yellow?
because its yellow pigment absorbs all incoming colors of light except yellow and reflects yellow light
mirage
caused by light refraction
inverted, real image; rays converge
concave mirror and convex lens
upright, virtual image; rays diverge
convex mirror and concave lens
violet
coolest temperature of visible spectrum
A magnet can be demagnetized by _______.
exposing it to a magnetic field with opposite polarity, hammering it, and rubbing it with another magnet in the opposite direction
A magnetic ______ extends forever in all directions.
field
plane mirror
flat reflecting surface
x-rays
formed by bombarding electrons onto metal plate inside a vacuum
Visible light has a very high ______ and a very short _______.
frequency....wavelength
lines of force
illustrate direction and intensity of a magnetic field
A magnet can be created from a piece of iron by _______.
induction, placing it in contact with a magnet, and wrapping it in copper wire and attaching the wire to an electric current
Infrared and ultraviolet light are both ______ forms of light.
invisible
domain
microscopic cluster of magnetic atoms
Light reflected from objects does not consist of ______ rays.
parallel
upright, virtual image; rays reflect at same angle
plane mirror
the property of magnetism that makes a compass work is ______.
polarity
unpolarized light
radiates in all directions from each point along the ray
An invisible object does not ______.
reflect light
concave mirror
reflecting surface on inside of curvature
convex mirror
reflecting surface on outside of curvature
The law of _____ states that the angle of reflection equals the angle of incidence.
reflection
regular reflection
reflection of all light rays at the same angle from a flat, even surface
diffuse reflection
spreading of waves in all directions at various angles from an uneven surface
red
warmest temperature of visible spectrum
