ERTH 101 Exam 2 Study Guide
With Complete Solution
List the names of the planets in order from closest to the sun to farthest. -
ANSWER Mercury
Venus
Earth
Mars
Jupiter
Saturn
Uranus
Neptune
Describe the diameter of the planets compared to the Earth (Earth = 1, ie,
Sun = 108) - ANSWER Mercury = <1/2
Venus = 1
Mars = >1/2
Jupiter = 11
Saturn = 9
Uranus = 4
Neptune = 4
, Describe differentiation. - ANSWER Differentiation is when an object has
separate, different layers of density. The core, mantle and crust of the Earth
is an example of differentiation.
Conduction - ANSWER exchange of heat (from hot to cold) through touch
Radiation - ANSWER exchange of heat (from hot to cold) through light
Convection - ANSWER exchange of heat (from hot to cold) through a
convective fluid, which moves the energy. Bodies are not touching
Density - ANSWER measurement of how tightly packed the molecules in the
object are
What is the formula for density? - ANSWER D = mass/volume
Plate tectonics - ANSWER plates are being pushed around by the convective
motion underneath them
Describe what spreading centers are and provide an example - ANSWER crust
pulls apart and mantle material fills up gap, ie, Red Sea, Mid-Atlantic Rift
Describe what subduction is and provide an example - ANSWER one plate
pushed under another plate, and as they rub together, they heat up and form
volcanoes and mountains, i.e., Mt. St. Helens
Describe what continental collisions are and provide an example - ANSWER
plates smash together and have nowhere to go so they turn upwards,
forming mountains like the Himalayas.
Describe what a hot spot is and provide an example - ANSWER happens at a
part of the crust where it is so thin that material and heat can leak out. ie,
Hawaii, Yellowstone
With Complete Solution
List the names of the planets in order from closest to the sun to farthest. -
ANSWER Mercury
Venus
Earth
Mars
Jupiter
Saturn
Uranus
Neptune
Describe the diameter of the planets compared to the Earth (Earth = 1, ie,
Sun = 108) - ANSWER Mercury = <1/2
Venus = 1
Mars = >1/2
Jupiter = 11
Saturn = 9
Uranus = 4
Neptune = 4
, Describe differentiation. - ANSWER Differentiation is when an object has
separate, different layers of density. The core, mantle and crust of the Earth
is an example of differentiation.
Conduction - ANSWER exchange of heat (from hot to cold) through touch
Radiation - ANSWER exchange of heat (from hot to cold) through light
Convection - ANSWER exchange of heat (from hot to cold) through a
convective fluid, which moves the energy. Bodies are not touching
Density - ANSWER measurement of how tightly packed the molecules in the
object are
What is the formula for density? - ANSWER D = mass/volume
Plate tectonics - ANSWER plates are being pushed around by the convective
motion underneath them
Describe what spreading centers are and provide an example - ANSWER crust
pulls apart and mantle material fills up gap, ie, Red Sea, Mid-Atlantic Rift
Describe what subduction is and provide an example - ANSWER one plate
pushed under another plate, and as they rub together, they heat up and form
volcanoes and mountains, i.e., Mt. St. Helens
Describe what continental collisions are and provide an example - ANSWER
plates smash together and have nowhere to go so they turn upwards,
forming mountains like the Himalayas.
Describe what a hot spot is and provide an example - ANSWER happens at a
part of the crust where it is so thin that material and heat can leak out. ie,
Hawaii, Yellowstone
