Wave Concepts

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9th grade Physics Flashcards on Wave Concepts, created by Amy Potter on 05/10/2021.
Amy Potter
Flashcards by Amy Potter, updated more than 1 year ago
Amy Potter
Created by Amy Potter over 1 year ago
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Question Answer
What is the definition of a wave? A disturbance that CARRIES ENERGY
The top of a wave is called what? CREST
The bottom of a wave is called what? TROUGH
The distance from one point on a wave to the same point on the next wave… often measured from crest to crest WAVELENGTH
The height of the wave from the EQUILIBRIUM line AMPLITUDE
What is A? WAVELENGTH
What is B? AMPLITUDE
What is C? TROUGH
What is D? CREST
What is E? EQUILIBRIUM line
A type of wave where the disturbance is PERPENDICULAR to the motion of the wave TRANSVERSE
A type of wave where the disturbance is Parallel to the motion of the wave LONGITUDINAL
What type of wave is shown? LONGITUDINAL
Give an EXAMPLE of a wave that travels like the wave shown SOUND
What type of wave is shown? TRANSVERSE
Give an EXAMPLE of a wave that travels like the wave shown WATER LIGHT X-RAYS GAMMA Rays MICROWAVES RADIO WAVES INFRARED ULTRAVIOLET
The UNIT for wavelength METERS
The UNIT for frequency HERTZ
The UNIT for wavespeed METERS/SECOND (m/s)
Definition of FREQUENCY How many waves pass a given spot per second. Measured in Hertz (waves/second).
Physical wave that requires a medium (matter) to move through. MECHANICAL
Physical wave that DOES NOT require a medium (matter) to move through. ELECTROMAGNETIC
A change in the direction of a wave at a boundary between two media so the wave returns to the medium from which it originated REFLECTION
When two waves OVERLAP to form a wave of greater, lower or same amplitude, occurs when two waves are traveling along the same medium INTERFERENCE
What type of INTERFERENCE is shown? CONSTRUCTIVE INTERFERENCE
What type of INTERFERENCE is shown? DESTRUCTIVE INTERFERENCE
Waves which appear to be vibrating vertically without traveling horizontally. Created from waves with identical frequency and amplitude interfering with one another while traveling in opposite directions. STANDING WAVES
The frequency or frequencies at which an object tends to vibrate with when hit, struck, plucked, strummed or somehow disturbed is known as what? NATURAL FREQUENCY
The happens when the frequency of a nearby object matches the natural frequency of a vibrating system and results in increased amplitude. RESONANCE
Give 3 examples of RESONANCE we talked about in class 1. Pushing someone on a swing 2. Tacoma Narrows Bridge 3. Breaking a glass with your voice
What kind of wave is sound? Pick 2. Longitudinal Mechanical (requires medium)
What determines the PITCH of sound? FREQUENCY
What determines the VOLUME of sound? AMPLITUDE
What is the DOPPLER EFFECT? An increase (or decrease) in the frequency of sound, light, or other waves as the source and observer move toward (or away from) each other.
If you scream in space, will anyone hear you? Explain :) NO, Sound is a MECHANICAL wave and as such requires a MEDIUM to travel through. Space is void of matter.
How would you change the speed that sound travels? CHANGE THE MEDIUM it travels in. Changing the wavelength, frequency or amplitude does NOT change the speed of the wave.
What type of wave is LIGHT? Pick 2 Transverse Electromagnetic
List radiation type on the electromagnetic spectrum from LOWEST to HIGHEST Energy Radio Waves Microwaves Infrared Visible Light Ultraviolet X-Rays Gamma Rays
List the colors of visible light from LOWEST to HIGHEST energy Red Orange Yellow Green Blue Indigo Violet
Which type of radiation has HIGHER frequency .... radio waves or ultraviolet? How do you know? Ultraviolet (HIGHER frequency waves are on the RIGHT on the EMS)
Which type of radiation has longer wave lengths ... radio waves or visible light? How do you know? Radio Waves (LONGER wavelengths are on the LEFT on the EMS)
What speed do all electromagnetic waves travel at? Speed of LIGHT! (3 X 10^8 m/s)
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