Exam 2 Flashcards
(39 cards)
Strong force (atomic structure)
Holds nucleus together
Electromagnetic force (atomic structure)
Keeps electrons attached to nucleus, different electric charges attract them (+-)
Covalent bond
When electrons are shared equally
Ionic bonds
Electron stealing
Hydrogen bond
Occurs when you have an H with a partially positive charge w a partially negative charge O, N, F
5 unique properties of water
- Cohesion and
- Adhesion
- Solubility
- Low density
- high specific heat
Cohesion
The clinging of substance to itself bc of hydrogen bonds
Adhesion
The clinging of one substance to another bc of hydrogen bonds
Solubility
It’s a solvent due to its polarity
Low density
Becomes less dense as it’s solid
High specific heat
Heat captivity is the amount of heat needed to increase temp so water has high specific heat…water absorbs lots of heat w out increasing temp
What does a water molecule look like
Mickey Mouse. Two Hydrogens on Oxygen
How is water a di polar molecule
Bc it’s 2 sided (one negative and one positive)
Hydrogen bond
It’s a weak bond between partially negative and positive. Kind of like a magnet
How does solar radiation vary in ocean w latitude
Ocean reflects more radiation at Lower altitudes than at high altitudes
Albedo
The percentage of incident radiation THAYS reflected back to space
EX ICE CAPS
Composition of atmosphere
Nitrogen, Oxygen and Greenhouse gasses
How does air move
Air moves from high pressure to low pressure.
Strong motherly winds in the Northern and strong in southern
Coriolanus effect differ in northern and southern
Northern: object will follow a path to the right of its intended direction
Southern: an object will follow a path to the left of its intended direction
Coriolis effect
Coriolanus effect causes moving objects on earth to follow curved paths
How does velocity change w altitude
Spinning velocity is greater at the equator and more stable at the poles
Weather of High air pressure
Nice weather
Weather of Low Air Pressure
Warm and moist and brings out stormy weather w strong winds
How does water vapor contribute to air pressure
Water vapor decreases the density of air and it creates low air pressure