Thermal Energy 1
What is convection?
Thermal energy transfer via movement of fluid (liquid or gas)
How does heat travel?
From HOT to COLD
What kind of kinetic energy does a hot mug of hot chocolate have?
More kinetic energy than a cold mug of hot chocolate have?
What kind of kinetic energy does a cold cup of coffee have?
Less kinetic energy than a hot cup of coffee
What is radiation?
Thermal energy transfer via electromagnetic waves
Mrs. LaPuma is holding an ice cube in her hand. How does the thermal energy transfer?
From the heat in her hand to the cold ice cube
What is conduction?
Thermal energy transfer via direct contact
What is an example of thermal equilibrium?
A hot cup of coffee on the counter
What is the definition for thermal equilibrium?
When the temperature of materials that are in contact are the same
Ms. V was frying bacon in a pan. What type of thermal energy is taking place between the pan and the bacon?
How do you know?
Conduction.
The transfer of heat through direct particles
How does thermal energy transfer from a fire to a pan?
Radiation
What occurs as the kinetic energy of the particles DECREASE?
The molecules are moving slower and the temperature decreases
What occurs as the kinetic energy of the particles INCREASE?
The molecules are moving faster and the temperature increases
Ironing clothes, putting your hand on a hot car, cooking on the stove, and lighting a match are examples of what?
How does thermal energy transfer from holding a hot pot in your hand?
Conduction
Convection
Sunbathing, warming up food in the microwave, and warming hands by a campfire are all examples of what?
Radiation
On a hot summer day, a car became extremely hot to the touch. When a student went to open the car door, he burned his fingers. What two types of thermal energy transfer occurred?
Radiation and Conduction