Lots
________ can change into other kinds of energy, such as sound, heat, light or motion
electricity
a magnets force that reaches out from the magnet in all directions is ______
magnetic field
a generator uses a magnet to make electricity by
a magnetic field makes an electric current
What are renewable resources
resources that can be used again
______ are tiny building blocks of matter made up of protons, neutrons and electrons
atoms
moving water and wind are ________
renewable resources
an electric motor works by
changing current, making the electromagnet spin
what are nonrenewable resources
resources that can only be used once
_______ is when a positive or negative electric charge builds up on an object
static electricity
natural gas and oil are
nonrenewable resources
What is a conductor
a piece of metal that carries current through it
What are examples of renewable resources
wind, water, solar energy
lighting is an example of a very strong
static discharge
An object has a positive or negative electric charge
an object gains or loses electrons
What is an insulator
a material that covers a conductor to protect people from being shocked
What are examples of nonrenewable resources
fossil fuels, coal, natural gas
magnetism
an electromagnet is different than a magnet because
an electromagnet needs electricity so it can turn on and off
what is a circuit
current flows in the path of a circuit through a conductor
Why are renewable resources better than using non-renewable resources
renewable resources can easily be replaced, and not used up. They also make less pollution than nonrenewable resources