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Chapter 10 test

a measure of the average kinetic energy of the particles in an object temperature
all matter is made of --- molecules moving
particles move in (same or different)directions at (same or different) speeds different; different
what is a thermometer used to measure? temperature
an increase in the volume of a substance because of an increase in temperature thermal expansion
absolute zero is the lowest temperature on the --- --- kelvin scale
absolute zero is the temperature at which molecular enery --- stops
what are the three units used to measure temperature? Farenheit, celcius, kelvin
list 3 things that involve thermal expansion expansion joints, thermostats, and hot air balloons
the energy transferred between objects that are at different temperatures heat
energy is transferred from the object with the --- temperature to the object with the --- temperature higher; lower
the total kinetic energy of the particles that make up a substance thermal energy
does thermal energy relate to the amount of the substance? yes
when the 2 objects that are touching reach the same temperature thermal equilibrium
the transfer of energy from one substance to another through direct contact thermal conduction
are metals good conductors? yes
the transfer of thermal energy by the movement of a liquid or gas convection
when you boil water, the water moves in --- circles
the transfer of energy by electromagentic waves radiation
can radiation transfer through a vaccum? yes
do all objects radiate electromagnetic waves? yes
the greenhouse effect is a form of --- radiation
the rate at which a substance conducts thermal energy thermal conductivity
the amount of energy needed to change the temoerature of 1kg of a substance by 1 degree C specific heat
water has a --- specific heat high
metals have a --- specific heat low
the physical forms in which a substance can exist states of matter
what 3 things does the state of matter depend on? speed of particles, attraction between them, and pressure around them
a change of a substance from one form to another change of state
what are 4 ways of changing state? freezing, melting, boiling, condensing
changed that occur when one or more substance are changed into entirely new substances chemical changes
what is food made of? chemical compounds
what is used to measure calories? calorimeter
Created by: kfran0112