Potential & Kinetic Energy
What is the process of saving up or storing energy?
Potential Energy
"You can burn it or you can eat it."
Chemical energy (food)
What is the Earth's biggest source of radiation?
The Sun
All of the following are poor conductors except which one: wooden spoon, plastic shovel, aluminum can, rubber glove
aluminum can
What is the Law of Conservation of Energy?
Energy cannot be created nor destroyed.
What is energy in motion (or movement)?
kinetic energy
This type of energy is generated by a force - a push or a pull.
Mechanical Energy
When you heat water on the stove, heat is passed to all the water molecules by_________ currents.
convection
Name at least two materials that make a good insulator.
plastic, air, saw dust, fiberglass (glass wool), bubble wrap, styrofoam, cardboard, newspaper, rubber, paper, foam, wood, cotton, wool, fleece, feathers,
NAME THE ENERGY TRANSFERRED: YOU EAT AN APPLE AND THEN GO PLAY SOCCER
Chemical to mechanical
Energy that has the ability to fall; this type of energy increases the higher up you go.
Gravitational Potential Energy
When molecules move faster heat is created. This is an example of what form of energy?
Thermal Energy
When I open the door on a freezing night, what direction does the air move?
It moves from inside the warm house to the cold outside.
Why are metal objects good conductors of heat.
They they allow heat to pass through them.
Charged ________ move to create electricity.
(hint: negative charges)
Electrons
As the speed of a falling object increases, its potential energy will _____________________.
decrease
ENERGY CAN ______________ FROM ONE FORM TO ANOTHER
Transfer
When something heats up, its molecules move: faster or slower?
Faster
I want to use one of these to stir my tea without burning my hand, which one would I pick? metal knife, iron spoon, wooden spoon, steel rod
Wooden spoon
Does heat transfer from colder to warmer or warmer to colder?
warmer to colder
While riding a roller coaster, at what points does the roller coaster have potential energy? Kinetic energy?
When the roller coaster is on top of a hill it has GPE. When the roller coaster has gained energy and moving quickly down the hill, it has kinetic energy.
THIS ENERGY TRAVELS IN WAVES, ALWAYS MOVES IN A STRAIGHT LINE, CAN TRAVEL THROUGH EMPTY SPACE, AND YOU CAN SEE IT.
Light
What type of heat transfer occurs when you warm your hands by holding a hot cup of coffee?
conduction
Explain why a metal pot has a wooden or plastic handle.
Because the metal pot is a conductor, it needs an insulator (wood or plastic) to slow down the heat transfer to the handle.
The ability to do work or cause a change is___________
Energy