Vocabulary
Any material that transfer heat easily is called
conductors
What does the "A" stand for in PIG HEAD?
Analyze data
Transfer of heat by electromagnetic waves is called
radiation
Baby chicks need heat to stay warm. We typically use a heating lamp. This is what type of heat transfer?
radiation
Name the 4 states of matter
solid, liquid, gas, plasma
Any material that does not transfer heat easily is called
Insulators
After we completed the lab with food coloring in water, when do molecules in water move the fastest?
in hot water
Transfer of heat by the movement of molecules in a circular motion (in liquids and gases).
Convection
The furnace that pushes air around your home through vents is using what type of heat transfer?
convection
The measure of the average kinetic energy in the individual particles
temperature
In the lab (ice water and just ice), what was the insulator that keep the ice from melting?
Name two examples of conduction (heat transfer)
hot cup to your hands
sand on the beach to our feet
warming pad to our sore muscles
hot iron to iron wrinkles from a shirt
campfire to the metal tongs cooking a hot dog
What are most conductors made out of?
metals
Name the type of energy source that comes from water and the spinning of turbines to produce electricity.
Hydroelectric
Objects expand when they are heated and contract then they are cooled is called
thermal expansion
Name 2 constants in the lab "Comparing Thermal Insulators." ice in water and ice in a cup lab
the same cups
the same size ice
putting the ice in at the same time (in each cup)
Give two examples of heat transfer by radiation
cooking food in a microwave
greenhouse plants growing in a warm space
sun heating up the Earth for us to live here
fireplace or woodstove heating up a room
What might have been an error in the comparing thermal insulators lab?
ice in water / ice in a cup
different size pieces of ice
timer not set correctly
moving the cups when they should not be touched
Explain the difference between low specific heat and high specific heat
Low specific heat- like sand or blacktop takes less heat to raise the temperature of 1 g. of that substance. So heats up quickly
High specific heat like water. It takes more heat to raise the temp. 1 gram of that substance. Heats up slowly.
The total kinetic and potential energy of all the particles in a sample of matter is called _______.
This depends on 2 factors- ________ & _________
thermal energy
temperature and mass
What was the independent variable and dependent variable in the comparing rates of melting lab?
ice in water and ice in a cup
IV= ice in water, ice in air
DV= amount of time it took for ice to melt
In convection, what happens to the molecules?
Use the hot air balloon to explain
the molecules get heated by the flame causing them to rise, pushing down colder (cooler) molecules, forming a circular movement of air.
What is called when the transfer of heat to another substance reaches the same temperature?
equilibrium
Name three layers of the atmosphere (there are 5)
Troposphere
Stratosphere
Mesosphere
Thermosphere
Exosphere