Thermal Energy Transfers
The transfer of thermal energy by the movement of particles from one part of a material to another.
What is convection?
The sum of the kinetic energy and potential energy in the particles that make up a material.
What is thermal energy?
A device that transforms electric energy into thermal energy is classified as a _________________.
What is heating appliance?
When the average kinetic energy of the water particles in a cup of water decreases, the temperature of the water increases, decreases, or stays the same?
What is decreases?
This transfer of thermal energy is how the Sun heats the Earth.
What is radiation?
The transfer of thermal energy from one matrial to another by electromagnetic waves.
What is radiation?
The movement of thermal energy from a warmer object to a cooler object.
What is heat?
A refrigerator works by removing, or destroying, thermal energy?
What is removing?
Out of water ina cup, air in a balloon, or the metal parts of a car, which material would thermal expansion and thermal contraction be most noticeable?
What is the air in a balloon?
The cylindrical up and down movement of fluids.
What is a convection current?
The amount of thermal energy it takes to raise the temperature of 1 kg of ofmaterial by 1 degree celsius.
What is specific heat?
The energy of motion.
What is kinetic energy?
One of the following energy transformations does NOT occur in a car's internal combustion engine:
A. chemical energy to thermal energy
B. mechanical energy to chemical energy
C. thermal energy to mechanical energy
What is B-mechanical energy to chemical energy?
The amount of thermal energy required to increase the temperature of 1 kg of a material by 1 degree celsius.
What is specific heat?
On which temperature scale does water freeze at 0 degrees?
What is celsius?
The transfer of thermal energy between materials because of collisions between the particles.
What is conduction?
Represents the average kinetic energy of the particles that make up a material.
What is temperature?
Transfer from a warm object to a cold object.
What is heat?
This is an increase in a material's volume when its temperature is increased.
What is thermal expansion?
The specific heat of water is high or low?
What is high?
Between cloth, water, metal, which material is a good thermal conductor?
What is metal?
The energy stored in the interactions between objects or particles.
What is potential energy?
An object's temperature gives information about the ________________.
What is kinetic energy?
The particles in a melting ice cube change from solid to liquid but their temperature does not change. As the ice melts, the particles gain _______________.
What is thermal energy and potential energy?
Water is important to the human body because of its _____________________.
What is high specific heat?