Almost the exam-physics
Terms
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- radio waves
- first on the electromagnetic spectrum going from lowest to highest frequency.
- timbre
- quality of a sound
- stirrup
- one of the three bones in the middle ear, the third
- gamma rays
- sixth on the electromagnetic spectrum going from lowest to highest frequency. greatest penetrating ability
- Ear canal
- located between outer ear and eardrum, conducts sound waves into the ear
- reverberation
- combination of reflected sound waves
- weight=
- mass x acceleration due to gravity
- inner ear
- part of the ear that contains the liquid filled cochlea; here sound vibrations are converted into electric impulses that travel through a nerve to the brain
- frame of reference
- object or point from which motion is determined
- X-rays
- fifth on the electromagnetic spectrum going from lowest to highest frequency.
- zero
- when terminal velocity is reaches, the acceleration of an object is
- stirrup
- one of the three bones in the middle ear
- outer ear
- part of the ear that funnels sound into the ear canal
- balanced
- ______ forces are opposite and equal
- polarized light
- light that vibrates in a uniform pattern on a single plane
- cones
- receptor cells in the retina allowing us to see in color
- 9.8
- near the earths surface, gravitational acceleration is ___m/s/s
- 2
- newtons law __ force=mass x acceleration
- string
- ex: guitar, vibration of strings
- data
- information collected from observations
- rods
- receptor cells in the retina responsible for black and white vision
- pupil
- The opening in the center of the eye that lets in light.
- solid
- best at transmitting sound
- Momentum=
- mass x velocity
- unbalanced
- for every force, there is an ______ force
- refraction
- bending due to a change in speed
- 340
- m/s=speed of sound
- farsightedness
- abnormal condition in which vision for distant objects is better than for near objects
- percussion
- ex:drums, vibration of striking
- raised
- Pitch is ____ when you make a string on an instrument more tense
- diffraction
- bending of waves around an object
- motion
- change in position relative to a frame of reference
- auditory nerve
- the nerve that carries impulses from the inner ear to the brain, resulting in the sensation of sound
- cornea
- clear film that cover iris
- visible spectrum
- third on the electromagnetic spectrum going from lowest to highest frequency. roy g biv
- velocity
- speed in a given direction
- centripetal acceleration
- acceleration directed towards the center of a circular path
- sonar
- SOund Navigation And Ranging system that uses high frequency ultrasonic waves
- resonance
- ability of an object to vibrate when it absorbs energy of its own natural frequency
- reflection
- bounces off
- add
- two forces in the same direction ____
- experimental setup
- 2 expiremental tests where all factors are the same but he one being tested
- anvil
- where vibrations are passed on from hammer, the second, one of the smallest bones in body
- nearsightedness
- Near objects appear clear, but faraway objects are blurry
- light
- ___ waves don't need a medium
- curve
- the path of a projectile is a _________
- modulation
- variation in either amplitude or frequency ; rise and fall of the voice pitch
- photon
- tiny particle or 'packet' of energy
- ear canal
- a narrow region leading from the outside of the human ear to the eardrum
- anvil
- second bone in the middle ear; transmits vibrations from the hammer to the stirrup
- speed
- distance traveled per unit of time
- force
- a push or a pull
- acceleration
- rate of change in velocity
- hammer
- first bone in the middle ear; picks up vibrations from the eardrum
- Doppler effect
- Change in frequency & pitch due to motion of sound source or observer
- inner ear
- the innermost part of the ear, containing the cochlea, semicircular canals, and auditory nerves.
- 3
- newtons law __for every action there is an equal and opposite reaction
- yes
- if you are at constant speed on a ferris wheel, are you being accelerated?
- eardrum
- tightly stretched membrane located at the end of the ear canal that vibrates when struck by sound waves
- prism
- A piece of glass that seperates white light into colors of the spectrum.
- white
- primary colors combine to create _______ light
- 1
- newtons law __- inertia, an object at rest will stay at rest and an object in motion will stay in motion unless acted on by an unbalanced force
- 300000
- km/s is th speed of light
- intensity
- the amount of energy in a wave; determines loudness, Dependant on amplitude of a sound
- primary pigments
- cyan, magenta, and yellow
- quality
- property of a sound that is determined by the blendings of its fundamental tone with its overtones
- density
- mass per unit of volume
- transparent
- lets light pass through unchanged
- electromagnetic spectrum
- Arrangement of electromagnetic radiation according to wave lengths
- woodwind
- ex: clarinet, vibration of air columns
- natural frequency
- the characteristic frequency of vibration of a particular medium
- forces
- a paper on a desk has balanced _____ acting on it
- hypothesis
- prediction based on patterns and observations
- diffuse reflection
- is the reflection of light rays in many different directions on a rough surface
- pitch
- How high or low sound is. depends of frequency
- noise
- a mixture of sound waves with no pleasing timbre and no identifiable pitch
- ultraviolet
- fourth on the electromagnetic spectrum going from lowest to highest frequency.
- hammer
- first bone in the middle ear; picks up vibrations from the eardrum
- black
- primary pigments combine to create _______ light
- Iris
- a ring of muscle tissue that forms the colored portion of the eye around the pupil and controls the size of the pupil opening
- infrared waves
- second on the electromagnetic spectrum going from lowest to highest frequency. can be felt as heat
- force=
- mass x acceleration
- unbalanced
- _____ forces are not equal
- quality
- property of a sound that is determined by the blendings of its fundamental tone with its overtones
- overtone
- sounds of higher frequencies produced when sections of a string vibrate
- ultrasonic
- sounds above 20000 hz
- inertia
- an objects tendency to resist a change in motion
- ultrasound
- sounds with frequencies higher than 20,000 hertz
- cochlea
- snail, shell-shaped, liquid filled structure in the inner ear; contains nerve fibers and special cells that convert movements of the liquid into electric impulses transmitted to the brain
- gravity
- force of attraction between all objects in the universe
- weight
- measure of the pull of gravity on an object
- middle ear
- part of the ear that contains the 3 smallest bones in the body; function is to transmit sound vibrations from the eardrum to the inner ear
- fluid
- a shark swimming demonstrates ____ friction.
- constant
- when the force of inertia matches the downward pull of gravity, the object is moving at ___ velocity
- middle ear
- part of the ear that contains the 3 smallest bones in the body; function is to transmit sound vibrations from the eardrum to the inner ear
- regular reflection
- occurs when light hits a smooth surface
- straight
- a _______ line means zero acceleration
- fundamental tone
- tone with the lowest possible frequency and pitch; occurs when a string vibrates as a whole
- earth
- most common frame of reference
- acceleration=
- change in velocity/time
- translucent
- allowing light to pass through but creating slight blurrines
- cochlea
- A snail-shaped part of the ear, filled with fluid and small hairs that vibrate to incoming sound
- parabola
- distance time graph for acceleration is always a curved line, or ____
- Density=
- mass / volume
- meter
- length unit
- opaque
- the term describing matter that does not transmit any light
- retina
- a layer at the back of the eyeball containing cells that are sensitive to light and that trigger nerve impulses that pass via the optic nerve to the brain, where a visual image is formed.
- optic nerve
- the nerve that carries neural impulses form the eye to the brain
- eardrum
- tightly stretched membrane located at the end of the ear canal that vibrates when struck by sound waves
- acoustics
- The science of sound.
- radar
- Radio Dection and Ranging.
- decibel
- unit in which the intensity of sound is measured
- distance=
- rate x time
- volume
- amount of space an object takes up
- friction
- force that opposes motion
- projectile
- any object that is thrown
- lens
- directly behind the pupil designed to focus and bend light onto the retina
- outer ear
- contains auditory canal and eardrum
- properties
- light includes the _____ of electrons and photons.
- music
- definite pitch, rhythm, and pleasing quality
- Celsius
- unit of temperature
- primary colors
- red, blue, and green