Phase change
Solid to a Liquid
melting adding heat energy
Hammer hitting wood
Mechanical to sound
When a liquid is heated, do the molecules of the liquid speed up or slow down?
Speed up
why does the hot hair rush inside your door when you open it in July?
The hot air outside travels towards the cold air inside.
Potential energy is also known as
Chemical Energy
Evaporation/vaporization adding heat
Battery to cell phone
Chemical to electrical
When you cool down a liquid such as freezing water, what happens to the speed of the molecules?
They slow down
energy can neither be ______________ or _______________
created or destroyed
kinetic
Boiling ice
Solid to liquid to gas
DOUBLE JEOPARDY: energy transfer types: Engine to car
Chemical to mechanical
when ice is added to a warm liquid, does the cold transfer to the liquid of the heat transfer to the ice?
heat transfers to the ice
True or False: When you cook pasta, its best to use a metal spoon when stirring the boiling water.
False
when boiling water, we set the stove to high. As the heat of the stove is increasing and warming up, what happens to the temperature of water?
when heat decreases, temperature decreases.
DOUBLE JEOPARDY: gas to solid
deposition (hail)
Warming light for food
Electrical to light to thermal
George microwaves his hot chocolate. He thought it was too hot to drink, so he left it too cool on his counter. He forgot about it and came back an hour later to find it room temperature. where did the heat tansfer?
to the cups surface and then to the air in the room
Insulators are good at holing heat or coldness in. Conductors are good at __________ heat and coldness.
transferring
what is an example of mechanical energy being transferred to thermal energy?
rubbing your hands together, creating friction and warming them.
Gas to liquid
Condensation
DOUBLE JEOPARDY: what is the whole energy conversion for turning on and using a flash light?
chemical->electrical->light->thermal
is condensation an example of cooling or heating?
cooling
True or False: energy is destroyed when a fire is extinguished
false, energy is transferred into steam or smoke
Give an example of electrical energy being transferred to sound energy
thunder