ICP unit 18
A material with greater specific heat
none of the above
transfer of thermal energy by waves that can travel through space
radiation
amount of energy needed to raise the temperature of 1 gram of a substance by 1 °C
specific heat
average kinetic energy of particles of matter
temperature
Thermal energy is transferred between objects only when they have different
temperatures and masses
material that is good at transferring thermal energy by conduction
thermal conductor
total kinetic energy of particles of matter
thermal energy
If you put a cool spoon into a cup of hot coffee, the temperature of the spoon rises because
thermal energy is transferred from the coffee to the spoon and particles of the spoon gain kinetic energy.
Cooking pot handles are often made of plastic because plastic is a good
thermal insulator
material that allows little if any conduction of thermal energy
thermal insulator
A(n) ____________ shows how hot or cold something is relative to two reference temperatures.
thermometer
device for measuring temperature
thermometer
Convection currents in Earth's atmosphere create
wind
Your hand feels cold when you hold an ice cube because
your hand transfers thermal energy to the ice.
The freezing point of water on the Celsius scale is
0
Which of the following statements about temperature is true?
Temperature measures kinetic energy.
How is thermal energy transferred in a refrigerator?
from the cool refrigerator to the warm kitchen
Substances in the_______state of matter usually expand the most when heated.
gaseous
If two objects have the same mass, the object with the higher temperature always
has greater thermal energy and feels warmer.
transfer of thermal energy between objects with different temperatures
heat
In which of the following materials does conduction occur most quickly?
iron
The specific heat of a substance is measured in the SI unit called the
jouls
Water takes up_______ space as a liquid than it does as a solid.
less
Particles of a fluid that have the greatest kinetic energy have the _______ density
lowest
measure that affects the thermal energy of matter but not its temperature
mass
All substances have thermal energy because their particles are always
moving
The thermal energy of an object depends on its
Mass and Temperature
Thermal energy is transferred from a campfire to nearby people by
Radiation
______ is the only way of transferring thermal energy that doesn't require matter.
Radiation
Metals are excellent thermal conductors because they have freely moving electrons.
True
Most types of matter expand to some degree when they get warmer.
True
Refrigerant changes to a liquid in the condenser of a refrigerator.
True
Specific heat is a property that is specific to a given type of matter.
True
Thermal energy always moves from an object with a higher temperature to an object with a lower temperature.
True
Thermal energy from inside a refrigerator changes the refrigerant to a gas.
True
Warmer air rises because it is less dense than cooler air.
True
transfer of thermal energy between particles of matter that are touching
conduction
Cooking pots are made of metals because metals are excellent thermal
conductors
transfer of thermal energy by particles moving through a fluid
convection
flow of particles in a fluid due to differences in temperature and density
convection current
Thermal energy is transferred throughout the ocean by
convection currents
amount of mass in a given volume of matter
density
Examples of thermal insulators include
down feathers. Styrofoam .air.
The transfer of thermal energy by convection occurs only in
fluids
When you hold a hot object, thermal energy is transferred from the object to your hands by
conduction
scale for measuring temperature
Celsius
A pot resting on a hot stovetop heats up because of
Conduction
An object with a higher temperature always has greater thermal energy than an object with a lower temperature.
False
Convection currents carry thermal energy from the sun to Earth.
False
Fluid particles with more energy have greater density.
False
Home insulation prevents the transfer of cold into the house.
False
In a warm-air heating system, pipes carry thermal energy throughout the house.
False
In a warm-air heating system, warm-air vents are always placed near the ceiling.
False
Most metals have a very high specific heat.
False
On the Celsius scale, the boiling point of water is 32 °C.
False
Only warm or hot objects have thermal energy.
False
Steam ships have internal combustion engines.
False
Temperature is a physical property of matter.
False
Temperature is the same thing as thermal energy.
False
The function of a thermostat is to transfer thermal energy.
False
The water in a hot-water heating system is heated by a furnace.
False
Thermal energy is transferred from a space heater to a person in front of it by conduction.
False
Wood is an example of a good thermal conductor.
False
What happens to the refrigerant as it passes through a cooling system?
It changes between liquid and gaseous states.
A combustion engine burns fuel to produce thermal energy.
True
A land breeze is an example of a convection current.
True
All objects radiate thermal energy.
True
An air conditioner is an example of a cooling system.
True
Conduction occurs only between particles that collide.
True
If particles of an object start to move more quickly, the object's temperature rises.
True
In any combustion engine, the engine does the work of moving a piston.
True
If a bucket full of water and a cup full of water have the same temperature, then the water in the
bucket has greater thermal energy.
A sea breeze blows
toward the land
In an external combustion engine, thermal energy is used directly to
turn water into steam
Types of home heating systems include
warm-air heating systems. hot-water heating systems and solar heating systems.
Which of the following materials has the greatest specific heat?
water