Reading...
Play button
Play button
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;
31 Cards in this Set
- Front
- Back
|
main source of nearly all energy available to us provided by?
|
Oil
|
|
|
Define Energy. Units?
|
The abstract concept of the ability to do work. Joule (J)
|
|
|
Amount of heat required to heat 1 kilogram of a material from liquid to vapor is called?
|
Calories
|
|
|
Heat transferred through solid material
|
Radiation
|
|
|
What are the terms used for different phase changes?
|
Sublimation, evaporation, deposition, condensation, solidification
|
|
|
Amount of heat required to raise 1kg of any substance by 1C is called?
|
Specific heat.
|
|
|
The amount if heat required to produce a phase change for 1 kg of any substance at the melting point is called?
|
Latent heat of fusion
|
|
|
What are ways energy can be transferred?
|
Conduction, convection, radiation
|
|
|
Which method of heat transfer can take place through a vacuum?
|
Radiation
|
|
|
What occurs in alpha decay?
|
decay of a parent by the release of an alpha particle which consists of 2 protons & 2 neutrons
|
|
|
What is beta decay?
|
decay of parent when a neutron in the parent change to protons
|
|
|
What occurs in gamma decay?
|
The decay of a parent when excess energy in the nucleus is released via high-energyelectromagnetic waves.
|
|
|
What is half-life?
|
How long it takes for half the element to decay.
|
|
|
What is a fission reaction?
|
When atom splits into two atoms.
|
|
|
What is fusion reaction?
|
Two atoms fuse into one
|
|
|
What is required for fusion?
|
Nuclei of two elements are fused into one nuclei
|
|
|
What are the three principles to minimize personnel exposure to radiation?
|
Time, distance, shielding
|
|
|
What is ALARA an acronym for
|
As Low As Reasonably Achievable
|
|
|
When fossils records that we are studying contain only tracks, burrows, or borings of primitive animals?
|
Trace fossils
|
|
|
What conditions are necessary for radiometric dating to give an accurate determination of the age of a sample of rock?
|
1. No daughter/parent has ben subtracted/added. 2. Rock age must be close to half-lifeof the parent. 3. No daughter present when rock formed.
|
|
|
What are the principles geologists use to create the relative geologic time scale?
|
1. The principle of original horizontality 2. The principle of fauna succession 3. The principle of superposition 4. The principle of cross cutting relationship
|
|
|
What radionuclide used for dating?
|
Carbon 14
|
|
|
What are the pieces that provide strong support for an Earth that is 4.56 billion years old?
|
The age of the Earth's rocks, the age of meteorites, the age of the moon rocks.
|
|
|
What is the term used for the shortest increment in geology time?
|
Period
|
|
|
During which era did dinos rules the earth?
|
Mesozoic Era
|
|
|
The longest time increment in geology time?
|
Eon
|
|
|
In what era are we living in?
|
Phanerozoic Era
|
|
|
What are the four types of galaxies?
|
Ellipitical/lenticular, normal spiral, barred spiral, irregular
|
|
|
Visible surface of the sun is called?
|
Photosphere
|
|
|
Hertzsprung-Russell diagram?
|
It's a scatter plot. Magnitude and temperature.
|
|
|
Scales that relate star brightness?
|
Apparent magnitude, absolute magnitude
|
