Unti 3.2 Heat Energy in Earth Systems Flashcards
Protons
Nucleus - positive
Mass = 1
1.6x10^-24=1
Atom
The smallest partical of an element that contains the chemical and physical properties of the element
Neutrons
Nucleus - neutral
Mass = 1
1.6x10^-24=1
Electrons
Orbit - negative
Mass = 0
9.1x10^-28=0
Nucleus is the ___, and ___ around the sun are the planets
Sun, orbiting
Element
A pure substance that can’t be broken down into simpler substance and can still contain chemical and physical properties of that element
Compound
Two or more Adams of different elements by chemical bonds
Molecule
Two or more atoms joined together by chemical bonds
Mixture
More than one kind of matter Adam or molecule
Homogeneous mixture
Looks the same
Heterogenius mixture
Noticeable difference
Kinetic molecular theory
Temperature increase makes molecules move faster temperature degrees makes molecules move slower
States of matter
Solid, liquid, gas
Phase changes
Liquid–>Gas=Evaporation - temp increase
Gas–>Liquid=Condensation=
Liquid–>Solid=Freezing. Temp decrease(dry ice)
Solid–>Gas=Sublimation(frost)
Gas–>Solid=Deposition
Thermal energy
The sum of all the kinetic energy of all the atoms in the substance
Heat
The flow of thermal energy due to a difference in temperature
Temperature
A measure of the average kinetic energy of the particles in a substance
Calorie
Small c = calories
Big C = kilocalories
Used to measure food
BTU
British Thermal Unit
Used for heating systems
Joule
Used in science
Conduction
Requires direct contact between particles of a substance
Convection
Requires air circulation/currents
Radiation
Requires electromagnetic waves and electromagnetic waves spectrum
Light
UV- Ultra violet X-rays Gamma IR- infared Radio-tv Microwave
