Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
15 Cards in this Set
- Front
- Back
What is the axial rotation of the Earth?
|
23 hours 56.07 minutes
|
|
What is the average radius of the Earth?
|
3963 miles (6378 kilometers)
|
|
What are some external sources of heat for the Earth?
|
Sun, Gravitational Potential Energy, Radioactive Isotopes, Thermodynamics
|
|
List three types of heat.
|
Conduction, convection, radiation
|
|
What is matter?
|
Something that has mass and exists as a solid, liquid, gas, or plasma.
|
|
What is energy?
|
The capacity of a physical system to do work.
|
|
What is an isotope?
|
One of the two or more atoms that have the same atomic numbers, but different mass numbers.
|
|
What is fission?
|
A nuclear reaction in which an atomic buclleus splits, releasing millions of electron volts of energy.
|
|
What is fussion?
|
A nuclear reaction in which nuclei combine and produce a simultaneous release of energy.
|
|
What is a chemical reaction?
|
A process where one or more substances are changed into another substance.
|
|
What is global warming?
|
An increase in the average temperature of the earth's atmosphere sufficient to cause climatic change.
|
|
What is the Greenhouse Effect?
|
The phenomenon in which the Earth's atmosphere traps solar radiation.
|
|
What is thermodynamics?
|
The study of the relationships and coversions between heat and other energy forms.
|
|
What is the first Law of Thermodynamics?
|
Energy can be neither created or destroyed so the mass of the Earth stays constant.
|
|
What is the second Law of Thermodynamics?
|
In all energy exchanges there will always be entrophy of energy, and that energy will disapate into the system.
|