Definitions
What is the energy that comes from the movement of particles in matter. The faster the particles move, the more _________ they have.
Thermal Energy
What types of materials can heat transfer by convection?
Heat transfers by convection in liquids and gases because their particles can move freely, allowing heat to circulate
Give an example of heat transfer by radiation
An example is the heat you feel from the Sun or a campfire. The heat travels in the form of electromagnetic waves.
What happens to particles in a substance when it is heated?
When a substance is heated, its particles move faster and spread farther apart.
Ice skating
What is heat transfer through direct contact called
Conduction
What is the main method of heat transfer in a pot of boiling water?
The main method is convection, as the warmer water at the bottom rises, and cooler water moves down to be heated.
Why does a thermos keep drinks hot or cold?
A thermos keeps drinks hot or cold because it has insulation that reduces heat transfer, preventing the contents from gaining or losing heat easily.
What happens to the thermal energy of a substance when it freezes?
When a substance freezes, its thermal energy decreases, and its particles move slower as they become more tightly packed
What was Ms.Bergmann's dream job as a kid?
Broadway Actress
What is the main difference between a conductor and an insulator?
A conductor allows heat to pass through easily, while an insulator resists the flow of heat.
Hot air _________ while cool air __________.
Hot air rises while cool air sinks.
Why does a metal spoon get hot when placed in boiling water?
A metal spoon gets hot because metal is a good conductor of heat. Heat moves from the boiling water to the spoon through conduction.
What is the effect of thermal energy on the volume of most materials?
Most materials expand when heated, increasing their volume.
How many times has Ms.Bergmann seen Wicked?
5
What is radiation?
Transfer of Energy by electromagnetic waves through space.
How does a hot air balloon use thermal energy to rise?
The hot air inside the balloon expands and becomes less dense than the cooler air outside, causing the balloon to rise.
How does insulation help conserve thermal energy in a home?
Insulation helps conserve thermal energy by preventing heat from escaping in winter and keeping heat out in summer, thus reducing energy loss.
What is the difference between heat and thermal energy?
Thermal energy is the total energy of all the particles in a substance, while heat is the transfer of thermal energy from one object to another.
What is a material that transmits heat?
A Conductor
What is the difference between conduction, convection, and radiation in terms of how they transfer heat?
How does a radiator in a house heat the room?
A radiator heats the room through convection, warming the air around it, which then rises and spreads throughout the room.
How does the law of conservation of energy apply to thermal energy?
The law of conservation of energy states that energy cannot be created or destroyed. Thermal energy is conserved, meaning it can only be transferred from one object to another, but the total amount stays the same.
What instrument did Ms.Bergmann play in high school
Clarinet... and I was really good