ERTH 101: Exam 2 Study Guide

©BRAINBARTER EXAM SOLUTIONS 2024/2025

ALL RIGHTS RESERVED.




ERTH 101: Exam 2 Study Guide


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


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, ©BRAINBARTER EXAM SOLUTIONS 2024/2025

ALL RIGHTS RESERVED.
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

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