Unit 2 Exam
When the total heat of an object is increased, the molecular vibrations in the object decreases~~
False
conduction
a hot stovetop transfers thermal energy by the method of ___
substances with a ___ specific heat capacity are useful for making kettle handles, oven covers, and insulators.
high
harry Hess
in the early 1960s, who of the following proposed the theory of seafloor s[reading?
Which type of energy is the energy of a moving tennis ball?
kinetic energy
When you jump on a trampoline , you have ___energy while you are moving up or down
kinetic, potential
In which layer of the Earth are plate-moving convection currents located?
mantle
what cause the seafloor to spread
mantle convection
low
sensitive thermometers use materials with ___ specific heat capactiy
the ___ of a substance is the amount of energy required to raise the temperature of 1gram of the substance by 1 degree celsius
specific, heat
RED ATOM
strong force and electromagnetic force
the average kinetic energy of particles of matter is called
temperature
thermal equillibrim is attained when two objects have the same:
temperature
Starting with the simulation in it's initial state, move the atoms closer together. What causes the electron density to change as the two atoms get closer together?
the fact that they are moving together the force changes which cause the density to change
a 500g block of cast iron, with a starting temperature of 100C is submerged in a 1 kg. sample of water with a starting temp of 10C
19320J
Which of the following statement(s) supports the idea of seafloor spreading along the Mid-Atlantic Ridge? I. Changes in the orientation of magnetized minerals II. Changes the thickness of the ocean sediments
Both I and II
desalination
__is the artificial process used to convert salt water into fresh water.
A heated metal object whose temperature is 120C is dropped into a tub of water whose temperature is 10oC. Which of the following will most likely occur?
The water and metal will adjust to the same temperature between 10oC and 120oC.
Any form of energy can change into any for of energy.
True
In a calorimetry experiment experiment, it is assumed that there is no heat exchange between the calorimeter and the surroundings.
True
Abyssal Plains
____lie(s) between the foot of a continental rise and a mid-oceanic ridge.
Calorimetry
___is the method of the transfer of heat into or out of a system during a chemical reaction or physical process
forms of energy include
all choices
mechanical energy commonly changes back and forth between kinetic energy and potential energy
all choices
Convection currents transfer thermal energy through Earth's
all choices are correct
Plate tectonics accounts for which of the following geological features?
all choices are correct
Thermal energy can be transferred by
all choices are correct
When particles of matter in one part of a fluid fain thermal energy they
all choices are correct
the thermal energy of matter depend on its
all choices are correct
what causes the seafloor to spread?
all choices are correct
which of the following could cause an object's temp to rise?
all the choices are correct
which of the following has the highest specific heat?
ammonia
compared to the particles in a liquid lava sample
are moving slowly
What causes the interactions between the atoms to change when they move closer together than the balanced position? Make sure to specify
as they move closer, the bonds that each atom has is what causes them to change
which choice has the least thermal energy
cup of hot cocoa
Mauna Kea
earth's tallest mountain from base to top
How do scientists determine where the plate boundaries are?
earthquake epicenters outline the plates
heat and temperature are the same thing
false
heat flows from a colder object to a warmer object until their temperatures are the same
false
only very hot object radiate thermal energy
false
Guyots
flat topped underwater mountains
consider a 1-liter beaker of water and a 10-liter beaker of water. What is different about the two samples?
heat capacity
when solid ammonium chloride is dissolved in water in a calorimeter, the temperature of the water decreases. which statement is true?
the reaction is endothermic because heat transfers from the water to the solid
thermal
the total kinetic energy of moving particles of matter is called ____ energy
A heated metal object whose temp is 120C is dropped into a tub of water whose temp is 10oc, which of the following is most likely to occur?
the water and metal will adjust to the same temperature between 10oC and 120oC
when electricity is produced from coal, the chemical energy in coal is first changed to ___ energy.
thermal
If you hold an ice cube in your hand, your hand feels really cold beacause
thermal energy is transferred from your hand to the ice cube
starting with the simulation in it's initial state, move the atoms closer together. Describe how the likely location of electrons changes when the interactions are balanced
they are more closer than they were at their initial starting point
uses a sound beam to determine the depth of the sea floor
to map seafloor bathymetry, a research vessel uses an echo sounder, which ___
When work is done, energy is transferred from one object to another
true
one form of energy can change into two r more forms of energy
true
when you run around a track, which type of energy are you demonstrating?
two of the choices
if a substance of a high specific heat is used for a pan, then when it is heated at high temperature?
undergo only small changes in temperature
the addition of heat causes the individual particles of a solid to ___
vibrate more rapidly
a foam cup
which would make an appropriate calorimeter?