EOSC 114 – Final Review Notes
Get A’s or die trying.
Unit 1: A Fragile System
At least 3 earthquake recording stations are required to find the location of the earthquake epicenter. A single recording station can only calculate distance, but not direction; to cover all possibilities, a complete circle is drawn around that station. If only two earthquake recording stations are used, the circles will overlap at two points. Data from a third recording station will eliminate one of these points.
Explain what density is & how it relates to stratification.
Density = mass/volume; how much mass fits into a space. Unit: kg/m3 3
Stratification = less-dense materials float on top of denser materials
This is found in the…show more content… 1. Hazards can be predicted through scientific analysis
Scientific method used
Identifying location, finding probability, looking for precursor events, forecasting, warning
2. Risk analysis is an important element in understand the effects of hazards
Risk = probability * consequences
3. Linkages among different hazards exist
4. Damage from natural disasters is increasing
6. Damage and loss of life can be minimized
Explain (with examples) how energy conservation applies to natural disasters.
Energy is conserved when it changes form.
Most sources of energy are diffuse: weak, but cover a wide area
Disasters generally have a concentration of energy into a small area
Describe relationships between force, pressure, stress, strain, energy, and power.
Power: work/consuming energy per second = measured in watts
Pressure: force per unit surface area applied perpendicular to a surface
Stress: force per unit area applied parallel to a surface
Stress tends to strain deform objects
Describe population n growth and explain why it is important for natural disasters.
Population growth was