Heat
Explain how heat energy flows
Heat energy always flows from warmer to cooler objects
How is sound created?
Through VIBRATIONS
Energy that is stored is called _________
potential energy
What is the source of energy a windmill uses?
wind/blowing air
What is the transfer of heat through a liquid or gas?
convection
Ms. Dembinski loves pizza. When she puts it in the oven, what form of energy cooks the pizza?
heat energy
An object that vibrates quickly has a _______ pitch than an object that vibrates slowly.
higher
Energy in motion is called ________
kinetic energy
What type of energy is created from the sun in order to provide electricity for homes?
solar
A push or a pull
force
Lisa makes her coffee and leaves the spoon in the mug while she brushes her teeth. What will happen to the spoon?
Heat from the hot coffee will warm the spoon
How does sound travel?
Sound travels in sound waves through solids, liquids, and gases.
Every moving object changes its ________
position
Moving air and flowing water possesses what form of energy?
kinetic energy
What is energy?
the ability to cause motion or create change
When heat moves from one object to another, when does the heat stop transferring?
When both objects are the same temperature
Ms. Dembinski stretched a rubber band 3cm. Mrs. Moradiellos stretched a rubber band 7cm. If they both plucked their rubber bands, how would the sound they hear be different?
Mrs. Moradiellos would hear a higher pitch than Ms. Dembinski because Mrs. Moradiellos rubber band was stretched tighter. The tighter the rubber band, the higher the pitch.
When a roller coaster gets to the very top just before it starts the thrill of going down the track is Ms. Dembinski's favorite part of the ride. At this point, what type of energy does the roller coaster have?
potential energy
Wind turbines have blades that begin rotating when wind hits them. The blades rotating turns the hub and turns on a __________ which produces electricity.
generator
What is the main source of energy on Earth?
the SUN!
Carol orders hot chocolate to go from a restaurant. Would the best material of the cup be aluminum foil or foam to keep her hot chocolate warm the longest?
Foam because foam is an insulator and will keep the hot chocolate warm without escaping the cup.
Mia turns on her TV. Before sound energy is produced, what are two other types of energy used to turn on the TV?
electrical and light
What must be measured to figure out the speed of an object?
distance and time
The energy of running water can be converted into other forms of energy. What do we call the kind of energy produced by running water?
a. fossil fuels
b. hydroelectric
c. solar
d. wind
b. hydroelectric
When the sun shines on water it slowly heats the water. What is this transfer of heat called?
radiation