What is thermal energy?
radiation
convection
conduction
What is radiation?
What is heat?
more; higher
Fahrenheit, Celsius, and Kelvin
What is convection?
What is kinetic energy?
various answers
use to prevent or slow down the transfer of thermal energy
fluids close to the heat source warm up, the particles spread out, becoming less dense, fluid rises; cooler fluid is less dense so it sinks
warmer to cooler
conduction
What are conductors?
What is temperature?
True
What are insulators?
when substances come in contact with each other, the particles bump into each other giving away some thermal energy
What is conduction?
glass, metal, tile
All phases
False
radiation
when you sit facing a campfire, your face feels warm but your back feels cold
The transfer of heat through empty space by electromagnetic waves
What are insulators used for?
the transfer of thermal energy from a warmer to cooler object
Give three examples of insulators
Heat always moves from _________ to __________
Give two examples of conductors
T or F: The thermal energy of a substance depends on how much of the substance you have
The transfer of heat by warmer fluids rising and cooler fluids sinking
the sunlight shines directly on you through the window making you feel hot
Your feet feel cold as you walk onto the tile floor in your bathroom
The TOTAL kinetic energy that the particles in a substance has
In which phases of matter do the particles have kinetic energy?
T or F: The temperature of a substance depends on how much of the substance you have
Explain how convection works
materials that transfer thermal energy well
What are the 3 scales for measuring temperature?
Explain how conduction works
a heater located in the deep ened warms an entire swimming pool
The transfer of heat by direct contact between particles
the energy of motion
The AVERAGE kinetic energy that the particles in a substance has
materials that do NOT transfer thermal energy well
you burn your hand when you touch the metal end of a curling iron
faster moving particles will have _______ kinetic energy and therefore a _______ temperature than slower moving particles