Energy Sources
This is the energy of position or energy that is stored
What is potential energy
A metal spoon gets hot when in your soup due to..
What is conduction
Thermal energy always moves from ______ objects to ______ objects.
What is warm to cool
This is the transfer of energy between solids in direct contact
What is conduction
This is the energy of motion
What is kinetic energy
This is a heat transfer through empty space
What is radiant energy
This is the transfer of thermal energy through the movement of molecules; warm to cool
What is convection / convection currents
Most objects ________ when heated
The only substance that expands when cooled is ___
What is
expand and water
This is the measurement of average kinetic energy of a substance
What is temperature
Substances that do not readily transfer heat energy
What are insulators
This is the sum of kinetic energy and potential energy of a substance
What is thermal energy or heat energy
Materials that readily transfer heat
What are conductors
When two liquids of the same temperature are brought together no energy is transferred. This is because....
What is the liquids will have reached thermal equilibrium
Which item contains more heat? A snowman that was built on the front lawn, or a cup of soup? Explain
The Snowman. Thermal energy is dependent on an objects mass. (not temperature) The more mass the greater the energy.
The amount of heat needed to raise the temperature of a substance 1 degree Celsius
What is specific heat
This is radiant energy can also be called ________.
What is electromagnetic energy
Thermal energy that is transferred from one object to another
What is heat
What has a higher specific heat: Water or sand? Explain
What is Water - it will take longer to heat or cool
Liquids (like water) and Gasses (like air) are usually better ________ than solids.
What are insulators
Explain what happens to air in convection currents...
What is warm less dense air rises ---> cool more dense air sinks
Explain how phase changes relate to energy transformations....
What is
solid - liquid - gas = absorbs energy
gas - liquid - solid = release energy
Thermal energy explains the relationship between _____ and _______.
molecular movement and mass
Explain how a thermometer works....
The liquids Kinetic Energy will increase or decrease due to the temperature causing the liquid level to rise or fall
The Pirate Ship ride at Canobie Lake is constantly transforming from _________ to _________ and back again.
What is Potential energy to Kinetic energy
What is the force of motion that causes/creates heat?
What is friction