DHS PS Ch. 5 - Thermal Energy (2015)
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| show | Temperature
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| show | Thermal Energy
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| show | increases
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| show | mass
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| Thermal energy that flows from something at a higher temperature to something at a lower temperature is called? | show 🗑
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| The amount of heat needed to raise the temperature of 1kg of a material by 1 degree C or K is called? | show 🗑
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| show | Q = m(Tf-Ti)C
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| show | positive
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| When heat flows out of an object and its temperature decreases, the change in temperature is? | show 🗑
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| show | calorimeter
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| show | Heat is thermal energy that flows from something warmer to something cooler; temperature is related to kinetic energy of atoms in a substance.
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| The transfer of thermal energy through matter by direct contact of particles is called? | show 🗑
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| show | collide
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| Solids, particularly metals, are ______ heat conductors. | show 🗑
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| The transfer of energy by the movement of heated particles from one place to another in a fluid is called? | show 🗑
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| show | currents
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| Convection currents create rain forests and ____ over different regions of Earth. | show 🗑
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| show | Radiation
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| Some radiation is _______ and some is reflected when it strikes a material. | show 🗑
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| show | black
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| Heat transfer by radiation is ______ in a gas than in a liquid or solid. | show 🗑
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| show | blubber
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| A material that does not let heat flow through it easily is called a? | show 🗑
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| Gases such as ____ usually make better insulators than liquids or solids. | show 🗑
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| show | vacuum
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| What state of matter generally makes a good heat conductor? | show 🗑
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| What state of matter generally makes a good heat insulator? | show 🗑
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| show | Forced-air system
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| show | Radiator system
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| show | Electric heating system
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| What kind of energy is from the sun? | show 🗑
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| show | Passive
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| show | Solar Collectors
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| show | Heat engine
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| show | Internal Combustion Engine
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| What percentage of fuel does an internal combustion engine convert from chemical energy to mechanical energy? | show 🗑
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| What appliance contains a coolant that absorbs heat from inside of the appliance and releases it on the outside as heat | show 🗑
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| show | air conditioner
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| show | heat pump
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| The human body stays cool by ___________ of sweat. | show 🗑
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| If the particles in an object begin to move more quickly, their average kinetic energy __________ and the object's temperature ___________. | show 🗑
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| show | temperature
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| show | kinetic
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| ________ is the thermal energy that flows from a material with a higher temperature to one with a lower temperature. | show 🗑
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| show | total energy
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| show | an insulator
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| show | liquids and gases
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| show | radiation
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| show | solids followed closely by liquids
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| The inside surface of a glass inside a vacuum bottle that is coated with aluminum to prevent heat loss by? | show 🗑
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| show | heat will travel from the warm pop to the cold ice
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| What is the method of heat transfer that is involved if someone is ironing clothing? | show 🗑
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| show | Most in ceiling, followed by walls and then floor.
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| show | convection
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| show | active solar heating system
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| Gasoline engines and diesel engines are what type of engines? | show 🗑
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| show | intake, compression, power, exhaust
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| In a forced-air heating system, the main method of heat transfer would be? | show 🗑
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| Which part of an engine converts thermal energy into mechanical energy? | show 🗑
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| Which type of surface would absorb the most radiant energy? | show 🗑
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| Which method of heat transfer best explains why heating one end of a steel rod will eventually cause the unheated end to become hot? | show 🗑
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| show | heat
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| show | slowing heat transfer
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| show | conduction and radiation
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| show | a lower temperature
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| show | radiation
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| Evaporation causes a ____ effect. | show 🗑
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| show | external combustion engines.
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| show | liquids and gases
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| What material will slow heat energy transfer from a warmer object to a cooler one? | show 🗑
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| show | conduction
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| The study of the relationship between heat, work, and thermal energy is called? | show 🗑
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| show | The 2nd Law of Thermodynamics
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| show | combustion
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| As the kinetic energy of the molecules in a substance increases the? | show 🗑
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| show | energy transfer
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| Good ________ do not allow heat to move easily through them. | show 🗑
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| The amount of thermal energy gained by an object is equal to the work done on it as well as any heat that is added. | show 🗑
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| show | mass
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| show | kg
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| show | The one with the lesser specific heat.
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| What is the specific heat of water? | show 🗑
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| What side of a house receives the most sun in the winter? | show 🗑
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| As matter is heated, it tends to _______ in size. | show 🗑
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| show | increases
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| show | decreases
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| show | Heat pump
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| show | Alcohol has a lower boiling point which means that it evaporates easily causing a greater cooling effect.
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| The theoretical point at which the kinetic energy of particles is zero | show 🗑
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| show | potential energy
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| The reason why water has such a high specific heat is because of the _____ _______ ________between its molecules. | show 🗑
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| show | electrons
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| show | conduction
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| show | convection
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| Feeling heat from the sun is an example of ______ . | show 🗑
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| As matter in a fluid cools, it becomes more _____ and sinks. | show 🗑
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| This effect is caused by allowing radiant energy to enter a space (such as a car or planet), heat the matter inside, and then trap the heat inside. | show 🗑
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| A refrigerator contains a _______ that is pumped through pipes on the inside and outside of the refrigerator. | show 🗑
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| show | It does work by compressing the gas and releasing heat
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| show | expansion valve
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| show | Sweat
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| show | Letting the warm air out.
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| Q represents | show 🗑
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| m represents | show 🗑
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| Tf represents | show 🗑
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| show | initial temperature measured in Celsius or Kelvin
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| show | specific heat measure in J / kg K
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