Wavy Waves
This is the defined as a disturbance in matter that transfers energy through the matter.
What is a Mechanical Wave?
Page 312, top section
When thunder is heard, this is the medium that the mechanical wave travels.
What is air?
Page 312, bottom text.
Debris found on the ocean isn't pulled back and is left on the beach because this is acting on the wave, weakening it.
What is inertia, or Newton's law of inertia?
Page 316, top section
This is a force of air pressure that travels faster than sound when the sound barrier is broken.
What is a shockwave?
Page 330, figure 9.18
This is the unit of measurement for sound intensity.
What is a decibel?
Page 331, middle text
This is defined as a wave that travels along the surface of a medium.
What is a Surface Wave?
Page 315, top
This popular (at least it was a long time ago, ask a parent) spring coil toys are used as an analogy for how Longitudinal Waves work.
What is a Slinky?
Page 314, top section.
A wave in the ocean is an example of this type of wave.
What is a Mechanical Wave?
316, Think About It
Waves with higher energy have a higher level of this.
What is energy?
Page 317, top text
When plucking a string on an instrument harder, this is being added.
What is more energy?
Page 332, bottom text
Surface waves are a combination of these two types of waves.
What are transverse and longitudinal waves?
Page 315, Figure 9.7
Name one of the three mediums waves require in order to travel.
What is a solid, liquid or gas?
Page 312, bottom text.
A sound wave with an intensity increase factor of 10 is measured as this many decibels.
What are 10 decibels?
Page 333, Think About It
When an aircraft break the sound barrier, this sense is the first to show that this has happened and for this reason.
What is sight? Sound and shockwaves travel slower.
Page 329, bottom text
When you hear a sound loud enough to leave a ringing sound in your ear, this has happened to your hearing.
What is it has been damaged?
Page 333, top text
The definition of this wave is a wave where the medium vibrates at right angles to the direction that the wave travels.
What is a Transverse Wave?
Page 313, middle
This type of wave is used in medicine where the different amplitude of the reflected and the other part transmitted which provides an image, or map of the reflected waves.
What are ultrasound waves?
Page 341, figure 9.25
In order to perceive an echo, the sound must travel for this amount of time.
What is 0.1 seconds?
Page 341, Think About It
This is the measure of how many cycles are transmitted in a given time.
What is frequency?
Page 317, second half of the page
In your ear, the cells of the cochlea are designed top do this to sound as it enters your ear.
What is reduce the response (to lower the amplitude)
Page 333, middle text
When a Transverse Wave's amplitude is shown graphically, the 'High' and 'Low' points are referred to as these.
What are Crests and Troughs?
Page 313, figure 9.4
Name 2 of the parts that make up a Longitudinal Wave.
What are wavelength, rarefaction and compression?
Page 314, Figure 9.4
This is the number of times the threshold of sound the human ear can endure before it takes damage.
What is 10,000,000,000 (10 billion) times its threshold (of 0 dB).
Page 333, bottom section.
This is the measurement of the maximum displacement of a wave.
What is amplitude?
Page 316, bottom text
Your ears detect sound with this part of your ear.
What is the tympanic membrane?
Page 333, top text