Vocab Terms II Flashcards
A break in the rocks that make up the Earth’s crust, along which rocks on either side have moved past each other
Faults
When plates slide past each other
Transform plate boundary
Rides on plates and is more dense but less thick than continental crust
oceanic crust
Speed and direction
velocity
Can be moved through a wire coil to induce an electric current magnet
bar magnet
Proposed the process of natural selection based on observations made during his travels
Charles Darwin
Describes how force and mass affects acceleration ( f=ma)
Newton’s 2nd law of motion
Below lithosphere and part of upper mantle , behaves plastically and flexible, hot solid and malleable
Asthenosphere
Part of the crust and uppermost mantle, floats on top of the asthenosphere, brittle and rigid
Lithosphere
Process by which living things with beneficial traits produce more offspring, so their traits become more common over time
Natural Selection
Type of mechanical wave in which the energy flows parallel to the wave ( rarefaction, compression )
longitudinal/compressional wave
Occures when waves bend around small obstacles or openings
Diffraction
When water reaches the lowest point ( twice a day )
low tide
When water reaches the highest point ( twice a day )
high tide
An unmanned spacecraft designed to explore the solar system and transmit data back to earth, uses radio waves
Space probes
Used for navigation systems, such as the Global Positioning System ( GPS)
Navigational Satellites
Receive and send signals for telephone, television, or other types of communication
Communication satellites
Take pictures of Earth’s surface for military or scientific purposes
Imaging satellites
Body of matter
medium
Waves that require a medium to travel in ( sound waves, water waves, etc)
Mechanical waves
Rocks that have been changed due to temperature and pressure increases
Metamorphic
( Primary) First to be detected by seismometer, Longitudinal motion, refract.bend when changing earth’s layers-faster in denser material, FASTEST MOVING WAVES, Travel fastest through SOLID inner core
P-Waves
(Secondary ) Half as fast a P-waves , Arrive second at seismographs, Transverse motion, Can only travel through solids
S- Waves
Distance of a wave measured from the equilibrium point ( how high or low the wave goes)
amplitude