PHYSICS CONCEPTS, ASSESSMENT
PREPARATION, AND COMPREHENSIVE STUDY
GUIDE QUESTIONS AND CORRECT VERIFIED
ANSWERS GRADED A+ || 100% GUARANTEED
PASS NEWEST VERSION
Plate Tetonics: - - ANSWER✔ Theory that states the Earth's outermost layer (the
crust and the uppermost mantle) consists of separate pieces that are moving slowly
relative to each other.
Earthquake: - - ANSWER✔ A sudden shaking of the ground that occurs when
rocks in Earth's crust break suddenly releasing energy.
Volcano: - - ANSWER✔ An opening in the Earth's crust through which molten
rock and gases erupt on Earth's surface.
Continental Drift: - - ANSWER✔ The hypothesis that states that the continents
once formed a single landmass, broke apart, and drifted to their present locations.
Seafloor Spreading - - ANSWER✔ The process by which new oceanic crust forms
along a mid-ocean ridge and older oceanic crust moves away from the ridge
Plate Boundaries: - - ANSWER✔ The edges of tectonic plates.
,Divergent Boundary: - - ANSWER✔ A type of plate boundary where the plates are
moving apart, or diverging.
Transform Boundary: - - ANSWER✔ A type of plate boundary where the plates are
grinding past each other.
Convergent Boundary: - - ANSWER✔ A type of plate boundary where the plates
push into each other.
Oceanic to Continental: - - ANSWER✔ A type of convergent boundary between
the seafloor portion of one plate and the continental portion of another pate; the
ocean plate sinks under the continental and into the mantle below (subduction); an
important feature for this type of boundary is a deep ocean trench; form volcanic
mountains on land.
Oceanic to Oceanic: - - ANSWER✔ A type of convergent boundary between two
oceanic plates, where one plate suducts below the other; forms a deep ocean trench
and a chain of volcanoes; a feature of this type of boundary is volcanic islands.
Continental to Continental: - - ANSWER✔ A type of convergent boundary where
two continental plates converge but no subduction occurs; the crust is force upward
forming very tall mountains.
Atmosphere: - - ANSWER✔ The layer of gases that surround Earth (and other
planets); divided into five layers-troposphere, stratosphere, mesosphere,
thermosphere, exosphere.
,Air Density: - - ANSWER✔ The spacing between air particles; mass-(divided by)-
per unit of volume; SI unit=kg/m(3); air density decreases as you go higher.
Troposphere: - - ANSWER✔ The first and lowest layer of the Earth's atmosphere;
extends from the Earth's surface to the altitude of about 8 km (at the poles) to 16
km (at the equator); densest layer, contains about 75-80% of the mass of the
atmosphere; air is in constant motion in this layer; weather occurs at this layer.
Stratosphere: - - ANSWER✔ The second-lowest layer of Earth's atmosphere;
altitude extends to about 50 km (30 mi.) above the ground; contains the ozone
layer; very stable layer; airplanes fly at this altitude.
Ozone Layer: - - ANSWER✔ A protective layer located in the stratosphere that
shields Earth from harmful sun radiation; a gas that forms when oxygen is exposed
to ultraviolet light or electrical discharge.
Mesosphere: - - ANSWER✔ The third layer of the Earth's atmosphere; altitude
extends to about 85 km (55 mi.) above the ground; the layer of atmosphere where
meteors burn up.
Thermosphere: - - ANSWER✔ The fourth layer of the Earth's atmosphere; altitude
stretches to about 500-600 km (300-375 mi.) to 1,000 km (620 mi.) above the
Earth's surface; the layer where the polar lights happen; the International Space
Station orbits at this layer.
Exosphere: - - ANSWER✔ The fifth and last layer (outer layer) of the Earth's
atmosphere; where the atmosphere thins out and merges with outer space; no exact
, altitude where it ends-generally taken that outer space (a vacuum) exists above
about 1,300 km (800 mi.).
Atmospheric Pressure: - - ANSWER✔ The pressure and weight air molecules have
at the surface of the Earth; pressure increases as humidity decreases.
High Pressure System: - - ANSWER✔ A large body of circulating air with high
pressure at its center and lower pressure outside of the system.
Low Pressure System: - - ANSWER✔ A large body of circulating air with low
pressure at its center and higher pressure outside of the system.
Convection Cells: - - ANSWER✔ A circulation pattern that forms when the rising
of warm air is balanced by the sinking of cool air; dense air sinks, pushing lighter
air upward=differences in density; three convection cells each (six total) in the
northern and southern hemispheres.
Coriolis Effect: - - ANSWER✔ The deflection of an object relative to the rotating
Earth; affects ocean currents and masses of air.
Prevailing Winds: - - ANSWER✔ Winds that blow predominantly from a particular
general direction into a given region.
Trade Winds: - - ANSWER✔ Winds blowing steadily towards the equator from the
northern and southern hemispheres; curved winds that flow from the east to the
west.