Thermal Energy
How do you change the state of an object?
"temperature at which a solid state changes to a liquid state"
melting point
When a solid changes to a liquid, what is it called? Is thermal energy added or removed?
Added
All objects in motion have _____________ energy.
Kinetic
What is thermal energy?
Thermal energy is the total kinetic and potential energy of an object.
"the change of state from a gas to a liquid"
condensation
When a liquid changes to a solid, what is the name of the process? What happens to the thermal energy?
Freezing
Removed
Adding thermal energy to an object causes the particles to move faster (increased _____________ energy), or to get farther apart (increased ______________ energy), or to do both.
1. Kinetic
2. Potential
What happens when you add thermal energy to an object?
The kinetic and potential energy increases. The object has an increased temperature.
potential energy
When liquid changes to a gas, what is the process called? Is thermal energy added or removed?
Vaporization
Added
When you add ______________ energy to ice, the temperature of the ice increases, which means that the ____________ energy of the water molecules increases.
2. Kinetic
What happens when you remove thermal energy from an object?
Kinetic and potential energy decrease. The object gets colder.
"the energy and object has due to its motion"
kinetic energy
When gas changes to a liquid, what is the process called? Is thermal energy added or removed?
Condensation
Removed
Once a substance melts, the average ____________ energy of its particles begins to increase again as more ____________ energy is added.
1. Kinetic
2. Thermal
What is the difference between thermal energy and temperature?
Thermal energy is the total kinetic and potential energy of an object. Temperature is the average kinetic energy of an object.
"measure of the average kinetic energy of all the particles in an object"
temperature
When gas changes to a solid without changing to liquid first what is it called? Is thermal energy added or removed?
Deposition
Removed
When thermal energy is removed from water vapor, it ___________________ at 100 degrees Celsius, and the liquid water _______________ at 0 degrees Celsius.
1. Condenses
2. Freezes