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?