Seismic Waves
What are the two basic kinds of seismic waves?
Body waves and surface waves
Which waves provide the smallest response on the seismogram?
P-waves
What comes first, the lightning or the thunder?
lightning
What is an example of reflection?
Look at your beautiful self in the mirror
There are 18 volcanoes that can potentially erupt?
Yes
What are the two kinds of body waves?
primary waves and secondary waves
What is the main kind of wave that an underground nuclear bomb produces?
P-wave
The speeds of P-waves change depending upon what?
the rock they travel through
What is the deflection of a wave due to a change in the material through which it is traveling?
refraction
True or False: Rubies, sapphires, and lapiz lazuli are more rare than diamonds.
False
Which waves reach the surface of the earth first?
P-waves
What is the largest mark above and below the baseline called?
main shock
How do we know that the outer core is made of?
S-waves cannot move through liquid that is enclosed in the earth.
Why is a black shirt hotter than a white shirt on a sunny day?
the black shirt absorbs all the light waves and the shirt gains energy which makes it hotter
All diamonds are transparent?
False
What is a readout from a seismograph?
seismogram
What are the smaller marks above and below the baseline before the main shock that represent less violent earthquakes?
foreshocks
No
What does refraction deflect when we are talking about earthquakes?
seismic waves
What is the most earthquake prone state?
Alaska
What does a seismograph measure?
The amount the earth is shaking
What are the smaller P-waves and S-waves that some after the main shock?
aftershocks
What happens to waves when they encounter liquid?
They STOP
What is is called when the seismography makes P-waves, but no S-waves?
S-wave shadow zone
What is the most dominant element in the air we breathe?
Nitrogen