Thermal Energy
The sum of the kinetic and potential energy of particles that make up an object.
What is Thermal Energy
Movement of thermal energy from an object with high temperature to an object with lower temperature
What is Heat transfer?
The average kinetic energy of the particles that make up a material.
What is temperature
stored energy
What is potential energy?
Transfer of thermal energy by electromagnetic waves
What is Radiation
A soccer ball in air has______energy
What is kinetic energy?
T or F: All objects that have the same temperature also have the same total amount of kinetic energy?
What is false?
This object measures temperature.
What is thermometer
How do particles move if temperature is high?
What is faster and spread out?
True or False - When a material becomes heated it's atoms move faster and spread out causing it to become more dense.
What is false?
What is the relationship between temperature and thermal energy?
Temperature is measure of average KE (movement of particles). Thermal energy is KE plus PE, so if the temperature of an object increases so does its thermal energy.
If cold milk is poured into a cup of hot cocoa what happens to the temperature of both?
What is the temperature of the milk increases while cocoa's temp. decreases till they are at equilibrium somewhere in the middle of their two starting temperatures?
How does energy move during any type of heat transfer?
Energy spreads from areas of high concentration to areas of low concentration
When people make hamburgers on a stove, the type of thermal energy transfer used is________.
Conduction
Transfer of thermal energy between materials by direct contact.
What is Conduction
The Three ways thermal energy is transferred are...
What is Radiation, Conduction, Convection
In order for objects to transfer heat energy. What must be true of their temperatures?
What is they must have different temperatures?
What is the average kinetic energy for a substance that has molecules with the following amounts of energy: 5J, 10J and 15J?
The average kinetic energy of the molecules in the substance is 10J.
What is 100oC?
This is how the Sun heats up the Earth?
Radiation
What is the primary source of energy on Earth?
What is the sun?
True or false. Does hot cocoa heat the surrounding air?
True
Can the molecules in an ice cube transfer thermal energy to your hand if you are holding it?
No, because the ice has a lower temperature than your hand so the energy is actually going to transfer from your hand to the ice cube
When water boils on a stove what type of heat transfer is happening?
convection
Hot air balloons work due to what type of heat transfer?
Convection
What is thermal equilibrium
When two objects have the same temperature, they are said to be in...
What is the rule of heat transfer?
Heat transfers from high concentration of energy to low concentration of energy
0 degrees celsius is the freezing point of what liquid?
What is water?
What type of heat transfer does Mango need to survive?
He needs heat from his lights to survive so the type of heat transfer he needs is Radiation.
Energy cannot be _____ or _______, just transferred from one form to another
Energy cannot be created or destroyed