Insulators and Conductors
What is the difference between insulator and conductor?
Insulator - a material that does not allow electric currents to flow through easily.
Conductor - materials which allow electric currents to flow through easily.
Define an open circuit.
a break in the electric circuit resulting in an interruption of the flow of electricity.
What will happen if both poles are opposite? ( N,S )
They will attract.
What is electrical energy?
includes heat, light, and mechanical energy
What is Ohms law?
Current=voltage/resistance
Give me three examples of insulators.
Rubber, Plastic spoon, Glass, etc...
Define a closed circuit.
a path which allows the electric current to flow in a complete circle.
What will happen if both poles are facing the same way ( N,N )
They will repel.
How can static electricity be made?
created by rubbing certain materials together.
What is an electric current?
a continuous flow of electric charges.
Give me three examples of Conductors.
Define a series circuit.
has only one path for the electrons to follow.
What is a magnetic field?
the space around the magnet within which the force of the magnet can act.
What is an electric circuit?
the path along which negative charges can flow.
What are electrons?
the negative particles of an atom that orbit around the nucleus.
An eraser is?...
An insulator
Define a parallel circuit.
has more than one path for the electrons to follow.
What is magnetism?
the invisible force that attracts objects containing iron, nickel, and cobalt.
What is resistance?
the amount of opposition that a material gives to the flow of electric current.
The continuous flow of ______ creates electric currents.
electrons
What are tweezers?
An conductor
What will happen if one bulb burns out in both series and parallel circuits?
Series circuit - all of the bulbs will go out.
Parallel circuit - the other bulbs will stay lit.
What is a compass?
A tool used to find the Earths north pole. There is a needle that can spin freely that is attracted to the North.
What is voltage?
the force at which electrical current is traveling through a wire.
What symbol signifies a negative charge?
(-)