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Earth and Tectonics
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Stars & The Universe
Waves & Energy
What is constructive and destructive interference in
relationship to waves being in and out of phase.
Doppler Effect- change in frequency as waves travel towards/away
Light- Blue:towards; Red: away
Sound- High pitch: towards;
Low pitch: away
Harmonic motion is repeating- like a swing going back and forth, or like Dr. B in class saying the
same things over, and over, and over again.
Linear motion does not repeat, like walking home from a concert after the taxi never showed up
Direct or Inverse???
What is the relationship between
-frequency and wavelength-wavelength and period-period and frequency
When singing in the shower, Dr. B hit a note that cracked her bathroom mirror. What is the name of this phenomena and
describe in detail how it works.
In your description discuss how sound waves travel (transverse/longitudinal-
compressional/mechanical/electromagnetic/) and how they interact
(constructive/destructive interference).
This phenomena is called resonance.
Sound waves are mechanical (require medium) and longitudinal/compressional (wave travels in the
same direction as motion).
When the frequency of the pitch of Dr. B’s amazing operatics equals the natural frequency of the glass,
constructive interference happens and the amplitudes increases so much that the mirror
breaks.
If a white dwarf and a neutron star got into a confrontation, who have more pull on the
other? Describe why.
Blue supergiant. Luminosity is brightness. Blue light is a higher
frequency (more energy) and brighter than red light.
When black holes engulf objects, X-rays get emitted.
Explain why this would make sense using E=mc2 and
the law of conservation of mass/energy.
The law of conservation of … states that energy/mass cannot be created nor destroyed but can only change forms.
Einstein’s equation E=mc2 states that energy and matter can be converted into each other as well.
So when matter gets sucked into a black hole, the intensity of the pressure can change mass into energy, which is being
emitted.
What is the name of the circular motion of the fluid that moves the
plates and where is it located in the Earth’s structure (one word)?
Convergent boundaries of:
Continent- continent- mountains
Continent- ocean- volcano
Ocean- ocean- trench
What word does Dr. B use (repeated harmonicly) to indicate that you should
kindly put away your computers?
Fill in the blank:Despite it all, to me she was beautiful still, but that beauty
had faded, glowing like a _______ _________who had reached almost the end of her life, like a dying white rose
past its prime.”