Waves Study Guide warm ups and vocab
Sound is a type of mechanical wave and must have a medium through which to travel. Sound will move at different speeds when which of the following occurs?
The sound pitch increases
The speed of sound will be different if which of the following happens?
The sound travels through different materials.
How will a sound moving through air be different when it moves through water?
The sound will move at a different speed.
Which of the following is the best example of an object absorbing light?
A black sweater in the sun
Which of the following is most accurate regarding the speed of light?
The speed of light can change as it moves through different materials.
Which of the following is most accurate statement about both light and sound waves?
The speed of the waves can change depending on the medium
Place the following mediums in order from fastest to slowest for sound waves: gas, liquid, solid solid, gas, liquid solid, liquid, gas liquid, solid, gas
solid, liquid, gas
example of longitudinal wave
sound wave
Sound is different from light because it must have __________________. a vacuum to travel through a medium to travel through a definite source to travel from empty space to travel through
a medium to travel through
Wavelength
Distance from crest to crest of a wave
Which is not true about longitudinal waves? Sound waves are longitudinal waves Electromagnetic waves are longitudinal waves High pitch sounds have higher frequencies. Longitudinal waves have to travel through a medium
Electromagnetic waves are longitudinal waves
radio waves
Electromagnetic waves with the longest wavelengths and lowest frequencies
gamma rays
Electromagnetic waves with the shortest wavelengths and highest frequencies
Sound waves do NOT need a medium to travel. True False
False
Sebastian places a pencil in a glass of water and observes that the pencil appears to be broken. Which of these provides the best explanation for why the pencil appears broken?
Light rays are bent by the water in the glass.
reflected
Light that is bounced off the surface of an object
refracted
Light that is deflected from a straight path
Which of the following has a long wavelenght Police sirens Whistle Screeching tires Bass drum
bass drum
Which of the following best describes the radiation our planet receives from the Sun?
The radiation is in many different wavelengths.
When sound moves through a medium, it makes the particles of the medium squash together and spread out in other places creating a wave known as _______________________. beach waves transverse waves compression/longitudinal waves surface waves
compression/longitudinal waves
Sound waves move forward through air, pushing air particles together and pulling them apart. The areas of spread out particles are called ___________________. compressions diffractions rarefactions diffusions
rarefactions
transparent
Allowing light to pass through
Amplitude
Height of a wave
Crest
Highest point of a wave
A light wave is traveling through the air and then enters water. How will the light change?
It will move at a different speed.
Adrian is observing a piece of white paper. His eye perceives the paper to be white because his eye is receiving what kind of light?
Light in all the colors of the visible spectrum
Which statement is incorrect about light energy? Light energy travels as electromagnetic waves. Light is absorbed at a higher rate if the color of the object it hits is brighter. Refraction is when light bends when it passes through another medium. We can only see light if the wavelengths are in certain part of the electromagnetic spectrum.
Light is absorbed at a higher rate if the color of the object it hits is brighter.
Trough
Lowest point of a wave
Which of the following is demonstrated when light bounces off of mirrors or shiny surfaces?
Reflection
Our eyes perceive colors because of differences in which of the following properties of light?
Source
Caleb is sitting near the window on a sunny day. When he closes the curtain, the room becomes darker. What property of the curtain allows it to make the room darker?
The curtain absorbs light.
Jason is swimming in his backyard pool and notices that sounds underwater are different than sounds above water. What best explains the difference in sounds?
The different speed of sound waves in water and in air
Ella is playing with a flashlight, observing how light behaves in different situations. Sometimes she sees the light bend, indicating that it is moving at a different speed. What situation would result in this change in speed?
The light moves from one material to another
The speed of light will change in which of the following situations?
The light moves through glass, then air.
Light rays from any light source travel outward in all directions along a straight path until they hit something. Which of the following best represents what occurs when light rays hit a glass of water?
The light rays will bend at the boundary of air and water.
The speed of sound is the measure of how far it travels in a certain amount of time. The speed of sound will differ depending on which of the following?
The material the sound is traveling through
Compression
The part of a longitudinal wave where the particles of the medium are close together.
Rarefaction
The part of a longitudinal wave where the particles of the medium are far apart
Wave
rhythmic disturbance that carries energy
The glass of most fish tanks is considered to be _____________.
Transparent
Sound waves travel at different speeds through different mediums. True False
True
Which of the following types of electromagnetic radiation has the shortest wavelengths? Radio waves Ultraviolet Visible light Infrared
Ultraviolet
Sound can travel through everything but a ____________________. Solid Liquid Gas Vacuum
Vacuum
What portion on the EMR can be detected by the human eye?
Visible Light
A combination of all the wavelengths within the visible light portion of the electromagnetic spectrum will result in which of the following colors?
White
Brooke wakes up in the morning to find a rainbow produced by light shining through the fish tank near her window. Which of the following types of electromagnetic radiation produced the rainbow that Brooke saw?
White Light
Andy and Mario were playing baseball in the summertime. Andy was wearing a black shirt and complained about it being excessively hot. What characteristic of how light transfers would cause this problem?
absorption
White light is made up of
all the colors of light mixed together
translucent
allowing light to pass through, but blurring it so that images cannot be seen clearly
visible light
electromagnetic waves that you can see
opaque
impossible to see through; preventing the passage of light
absorb
light that is taken in by an object
Sound waves are a form of - transitional wave electromagnetic wave longitudinal wave
longitudinal wave
Black light is made up of
none of the colors
Sound energy is produced when things vibrate. As these vibrations cause air to move, the energy is carried ________________. in an up and down motion out in all directions through empty space in only one direction
out in all directions
Which has the longest wavelenght? radio, microwave, ultravoilet or infared
radio
electromagnetic spectrum
the complete range of electromagnetic waves placed in order of increasing frequency
medium
the matter (solid, liquid, gas) through which a mechanical wave travels
transverse wave
the matter in the medium moves up and down or back and forth at right angles to the direction the wave travels
Frequency
the number of complete wavelengths that pass a point in a given time
example of a mechanical wave
water wave
longitudinal waves
waves in which matter in the medium moves back and forth in the same direction as the wave
electromagnetic wave
waves that DO NOT require matter to carry energy
Mechanical Wave
waves that NEED matter (medium) to transfer energy
