Physical Science Waves Flashcards
is described as a
minute portion of matter and is also referred
to as the smallest known building blocks of
the universe.
particle
This means that everything that
makes up matter and universe is called
_______________.
Particle
Is a subatomic
a particle that has a negative
electric charge.
Electron
It has a no known
structure and is believed to be a
____________.
Electron, point particle
It has a mass that is
approximately ___________ times less
than that of the proton.
Electron, 1836
The ____________ of the electron is
called the _________ which is
identical to the electron except that it is
producing a pair (or more) of
gamma-ray photons.
anti-particle, POSITRON
The name “electron” was introduced
for the electric charge quantity in
1894 by Irish physicist __________________
George Johnstone Stoney.
The electron was
identified as a particle by ______________________ using the
________________ that enabled him
to calculate the charge-to-mass ratio.
Joseph John Thomson in 1897, Cathode ray tubes
is described as a
disturbance that travels through space-time
and medium accompanied by transferring
energy from one place to another.
Wave
A ____________
may be a substance or material that carries
the wave.
Medium
WAVES TRANSFER
___________ AND NOT ____________.
ENERGY, MATTER
Thus, waves are
said to be an __________________
energy transport phenomenon.
is a small thing,
finite object.
Particle
have momentum and positions.
Particle
have momentum and positions.
Particle
are
oscillations, they are not localized.
Waves
When the waves meet together,
crest meets crests it is called
_______________
Constructive Interference
When
the waves cancel each other, no
interaction at all, it is called
_____________________
Destructive Interference
crest meets crests
constructive interference.
no
interaction at all,
destructive interference.
created When two waves meet
together, sounds are ___________ , light is
______________.
produced, present
When there is no wave interaction,
no sounds are ________ and only ______.
created, darkness
have
recognized the existence of the sub-atomic particle but were
only able to observe the energy it produces.
Bohr, Schrodinger, Rutherford
a specific material is randomly directed at a wall
which has two small slits that can be opened and closed at will, some of
the material gets blocked and some passes through the slits depending
on which ones are open.
Richard Feynman’s experiment double-slit
thought-experiment,
When particles are
fired at the wall with both
slits open, they are more
likely to hit the backstop in
one particular area,
whereas waves interfere
with each other and hit the
backstop at a number of
different points with
differing strength, creating
what is known as an
_______________
INTERFERENCE PATTERN.
forms when
waves collide when they
travel thus changing their
direction, strength, or
movement.
interference
patterns
are disturbances, they are formed and carried when an object is disturbed and
sends vibrations that disturb objects from one end to another.
Waves
__________ carry energy from one
point to another without moving matter from one point to another.
Waves
_________________ is the height and the depth of the wave from the
center or the resting point.
AMPLITUDE
________________ is the top wave of the formation.
CREST
Is the
bottom wave of the formation.
TROUGH
is the distance between two crest and two
troughs.
WAVELENGTH
is the number of complete waves made per second and period is the
amount of time to complete one wave.
FREQUENCY
When light passes
through a triangular prism
and produces a rainbow of
colors, which is known to be the
______________
Dispersion of light.
takes place when
white light passes through
such mediums and causes
colors to separate.
Dispersion of light
occurs
when a light wave passes by a
corner or through an opening
or slit.
Diffraction of light
Light has always been known to
have two properties, its____________________
and ______________
wave property, particle property.
is a form of
radiation, meaning it comes from a
body source then it could travel through
space or through a medium going to
another body.
Light
travels in space or
different mediums like gas
molecules or through objects, it
will affect the way it travels hence
could have different effects.
light
The particle property of light is observed with the presence of “___________”
that are also known as bundles of light.
photons
are very dangerous to life forms.
Radio Frequencies
In the
electromagnetic spectrum, the wavelengths for light are found in the
boundary that is called ____________
visible light.
is when light, both
wave and particle slow down as it
passes through matter.
Refraction
Waves move
slower as it passes through
“____________________” objects like water.
TRANSPARENT
is why when you look objects
through water they are like “bent”
or not in actual place where they
are seen like a pencil placed in a
glass of water.
TRANSPARENT
Transparent waves move slow or fast?
Slow
when light passes
through crystals or when
light hits the water
vapor in the air creating
a rainbow.
“rainbow” phenomena
Reflection of light is the
bouncing of light when it hits
a smooth or “__________”
surface like a mirror.
LUSTROUS
All light
bounces and does not affect
the travel of light much. That
is why your reflection on the
mirror is exactly how it is
when you see it because light,
as it is bounces back to your
eyes.
LUSTROUS
Objects could either be
_______________________
depending on the material of the
object. (Say how light behaves each)
transparent (all light passes through), translucent (Some light passes through), or opaque (no light passes through)
if light is not
changed as it passes through a
material like glass.
transparent
Light does what when entering glass with color when its translucent
Changes color
if it blocks the light
completely and casts a shadow.
Opaque
could still pass but it will have
a different shade of color.
Translucent
The primary colors of the light
are
red, blue, and green.
Combining
two of the primary lights would
produce the secondary lights which
are _______________
magenta, yellow, and cyan.
Combining all primary colors of light
will produce the _______________
white light.
____________
absorb other wavelengths
and reflect the color that
we see.
Paint pigments
If all colors are
mixed, we end up having a _________ because all
colors are absorbed. (Pigments)
Black Color
absorbs all
color,
Black
___________
reflects all colors reflecting
white light.
white material
