# Shared Flashcard Set

## Details

Science.5 Waves, Sound, Light Review
Waves - Sound and Light
45
Science
03/14/2011

Term
 Troughs, crests, and wave energy are all related to ___________________.
Definition
 amplitude
Term
 Transverse waves are waves in which the particles of the medium move at _______ ______ to the direction of the wave.
Definition
 right angles
Term
 The type of medium determines the _________ of a wave.
Definition
 speed
Term
 The lowest point on a wave is called the ________.
Definition
 trough
Term
 What is it called when air molecules are crowded together?
Definition
 compression
Term
 What does hertz measure?
Definition
 frequency
Term
 When a wave is traveling at a constant speed and a constant direction, what do we know about the medium?
Definition
 The medium has remained the same.
Term
 Amplitude depends on the __________ of a wave.
Definition
 energy
Term
 What is it called when a wave strikes a surface and bounces back at the same angle at which it struck?
Definition
 reflection
Term
 What does the density of a medium affect?
Definition
 the speed of a wave
Term
 Give an example of refraction.
Definition
 Pencil is placed in a glass of water and it looks like it is bent.
Term
 When waves move at different speeds in different mediums it is called?
Definition
 refraction
Term
 What phase of matter does sound travel the fastest through?
Definition
 solids
Term
 How is sound produced?
Definition
 a vibration
Term
 Give an example of longitudinal wave.
Definition
 Sound waves
Term
 What is frequency?
Definition
 The number of waves per unit of time.
Term
 When you have to locate object in water or determine an underwater distance, what would you use?
Definition
 Sonar
Term
 Amplitude determines the ___________ of sound.
Definition
 loudness
Term
 Sound waves can be transmitted through all phases of ___________ .
Definition
 phases of matter
Term
 What type of wave travels as a series of compressions and rarefactions?
Definition
 sound; longitudinal
Term
 What waves differ from other waves because they can travel in a vacuum?
Definition
 Electromagnetic
Term
 Radio waves have the __________ frequency and the __________ wavelength.
Definition
 lowest frequency, longest wavelength
Term
 What electromagnetic wave has the highest frequency?
Definition
 gamma rays
Term
Definition
 Sound waves are mechanical and cannot travel in a vacuum.
Term
 On the electromagnetic spectrum, what colors are found under visible light? (In order)
Definition
 Red, Orange, Yellow, Green, Blue, Indigo and Violet (ROY G. BIV)
Term
 What has a shorter wavelength visible light or radio waves?
Definition
 visible light
Term
 Is the speed of light the fastest in a solid, liquid, gas or vacuum?
Definition
 vacuum
Term
 What is an example of a transverse wave?
Definition
 Light wave
Term
 A microwave is considered what type of wave?
Definition
Term
 What is an illuminated object?
Definition
 ILLUMINATED OBJECT is an object that can be seen because it is lit up Example: moon, book
Term
 When there is very little scattering of light what type of reflection is it?
Definition
 regular reflection; example: mirror, glass
Term
 When light is scattered in many different directions from an irregular surface what type of reflection is it?
Definition
 diffuse reflection; example: wall
Term
 What does it mean when a substance is transparent?
Definition
 It transmits light easily
Term
 What does it mean when a substance is translucent? What is the image like?
Definition
 When light is transmitted and scatters the light, the image is unclear and lacks detail.
Term
 An apple is red because red is _____________ and the other colors are ____________________.
Definition
 red is REFLECTED; other colors are ABSORBED
Term
 What color reflects all colors and does not absorb any color of the spectrum?
Definition
 white
Term
 What color absorbs all the colors of the spectrum?
Definition
 black
Term
 When light passes through a prism VIOLET is the most visible. Why is that true?
Definition
 Violet has the shortest wavelength and is refracted the most.
Term
 When light passes through a prism RED is the least visible. Why is that true?
Definition
 Red has the longest wavelength and is refracted the least.
Term
 What is the reason there are different colors on the electromagnetic spectrum?
Definition
 Each color has a different wavelength
Term
 What happens to reflected light when it hits a rough surface?
Definition
 the light scatters
Term
 How do you measure a wavelength in a longitudinal wave?
Definition
 Measure rarefaction to rarefaction OR measure compression to compression
Term
 When parallel light rays hit a concave mirror, the light rays reflected back to a __________________.
Definition
 focal point
Term
 What happens to the intensity of a wave as it travels away from its source?
Definition
 it decreases
Term
 A movement that follows the same path repeatedly is called a ______________.
Definition
 vibration
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