Related natural-disaster risk and intensity to frequency, return period, and
consequences (costs).
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+intensity = -frequency
Return Period: the average number of years between disaster events of the
same magnitude.
RP = (time span of data record) / (number of cases of magnitude)
RP doesn't give us the ability to predict future events.
Examples of how energy conservation applies to natural disasters
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-kinetic energy of an asteroid is converted into heat (sensible and latent)
when it strikes Earth.
-heat causes water to expand (evaporate) into steam (vapour).
-potential energy of rocks high on the slopes of a volcano is converted into
kinetic energy when they fall down during a landslide.
PQ; all the following are forms of energy except ____.
-force
-latent heat
-work
-kinetic energy
-sensible heat
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force
Define/Explain what a disaster is and what is it caused by?
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a sudden, substantial event that causes great physical damage, injury or
loss of life and/or a drastic change to the environment.
-can be caused by natural processes, man-made or even technological
processes.
Know the common SI magnitude prefixes and their values. - time
, Give this one a try later!
SI for time is seconds (s).
1min = 60sec
1hr = 60min
1day = 24hrs
1yr = 365 days
1millennium = 1,000 years
Define what a wave is and describe the types of waves.
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Wave: regular oscillations that can propagate (shift) in space.
1. Longitudinal: displacement of particles are parallel to the direction of
wave propagation.
-Pwaves.
2. Transverse: displacement of particles are perpendicular to the direction
of wave propagation.
-Swaves
PQ; if you push twice as hard on an object and it moves twice as far, the work you do
is ___ as much.
-exactly
-1/4
-twice
-four times
-1/2
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consequences (costs).
Give this one a try later!
+intensity = -frequency
Return Period: the average number of years between disaster events of the
same magnitude.
RP = (time span of data record) / (number of cases of magnitude)
RP doesn't give us the ability to predict future events.
Examples of how energy conservation applies to natural disasters
,Give this one a try later!
-kinetic energy of an asteroid is converted into heat (sensible and latent)
when it strikes Earth.
-heat causes water to expand (evaporate) into steam (vapour).
-potential energy of rocks high on the slopes of a volcano is converted into
kinetic energy when they fall down during a landslide.
PQ; all the following are forms of energy except ____.
-force
-latent heat
-work
-kinetic energy
-sensible heat
Give this one a try later!
force
Define/Explain what a disaster is and what is it caused by?
Give this one a try later!
a sudden, substantial event that causes great physical damage, injury or
loss of life and/or a drastic change to the environment.
-can be caused by natural processes, man-made or even technological
processes.
Know the common SI magnitude prefixes and their values. - time
, Give this one a try later!
SI for time is seconds (s).
1min = 60sec
1hr = 60min
1day = 24hrs
1yr = 365 days
1millennium = 1,000 years
Define what a wave is and describe the types of waves.
Give this one a try later!
Wave: regular oscillations that can propagate (shift) in space.
1. Longitudinal: displacement of particles are parallel to the direction of
wave propagation.
-Pwaves.
2. Transverse: displacement of particles are perpendicular to the direction
of wave propagation.
-Swaves
PQ; if you push twice as hard on an object and it moves twice as far, the work you do
is ___ as much.
-exactly
-1/4
-twice
-four times
-1/2
Give this one a try later!
