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PBIS Energy Learning Set 3
Terms in this set (43)
unit of measure for any type of energy
units of measure for metric temperatures
Celsius and Kelvin
unit of measure for "US" temperatures
The coldest temperature, 0 Kelvin, that can be reached. It is the hypothetical temperature at which all molecular motion stops.
freezing point of water in Celsius
boiling point of water in Celcius
freezing point of water in Fahrenheit
boiling point of water in Fahrenheit
Change in thermal energy by an object is related to ______, specific heat and change in __________________.
True or False
Cold objects have no thermal energy.
When more particles within a substance are moving fast, the substance has a __________________ temperature and feels _________________.
When more particles within a substance are moving slow, the substance has a __________________ temperature and feels _________________.
_______________ determines the direction in which thermal energy naturally flows.
Thermal energy naturally flows from _____________ temperature objects to _______________ temperature objects.
A description of a change in which a system absorbs energy from its surroundings.
Chemical Reaction in which energy is primarily given off in the form of heat
Is a bonfire exothermic or endothermic?
Is a popsicle melting exothermic or endothermic?
In an exothermic chemical reaction- __________________ energy to ________________ energy.
In an endothermic chemical reaction- __________________ energy to ________________ energy.
A change that occurs when one or more substances change into entirely new substances with different properties.
A change of matter from one form to another without a change in chemical properties.
The particles in the _______________ phase vibrate in place.
3 common states of matter
solid, liquid, gas
The state of matter that has a definate volume, but indefinate shape as it takes the shape of the container into which it is places.
The state of matter that has indefinate volume and shape.
temperature is a measure of the _______________ ____________________ energy of the individaul particles in matter.
The amount of energy required to raise the temperature of 1 gram of a substance by 1 degree celcius
A material with ______________ specific heat absorbs a great deal of thermal energy WITHOUT a great change in temperature.
Metals have a ___________ specific heat, but water has a ___________ specific heat.
3 ways that heat is transferred
conduction, convection, radiation
Form of heat transfer where heat energy is directly transferred between molecules through molecular collisions or direct contact.
The movement caused within a fluid by the tendency of hotter and therefore less dense material to rise, and colder, denser material to sink under the influence of gravity, which consequently results in transfer of heat.
Heat transfer by electromagnetic waves
Butter melting on toast is an example of which type of energy transfer?
When drinking a hot beverage, the visible bubbles or steam is the result of warm water that moves up to the surface, which is cooler in comparison to the bottom of the cup is an example of which type of energy transfer?
A bonfire is an example of which type of energy transfer?
#1 on graph
#2 on graph
#3 on graph
#4 on graph
#5 on graph
Could this substance be water?
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