When two magnets push away from one another; happens when two north or two south poles meet.
What is repelling?
When two magnets draw toward one another; happens when a north and south pole meet.
What is attraction?
A buildup of electric charge on an object or surface.
The loop (path) along which an electric current travels.
What is an electric circuit?
Electricity always follows...
What is the path of least resistance?
What is the process where electrical discharge is removed from the system via a wire and dispersed elsewhere?
What is Grounding.
When the magnetic field lines are close together that means the magnet is
What is "strong"?
A place on a magnet where its pulling force is the strongest.
What is a magnetic pole?
The sudden flow of static electricity from one object to another
What is static discharge?
Current Electricity
A machine that uses a magnet to change mechanical energy into electrical energy.
What is a generator?
This man was responsible for creating the 'Law of Induction' as well as metal cages to act as barriers against electric fields.
Who is Michael Faraday.
A magnet can generate electricity in a wire if it is close to the wire and it is.....
What is "moving"?
Something relating to matter with strong magnetic properties is this.
What is ferromagnetic?
Materials that allow electric current to flow through easily.
What are conductors?
This type of circuit that allows for all other loads to continue operating when one load burns out. All houses and businesses are wired this way.
What is a parallel circuit?
A measure of how difficult it is for current electricity to flow uses this unit.
What is Ohms?
Who was responsible for the creation of the formula V=IR
Who is Georg Ohm.
Two metals that are attracted to magnets.
What are iron and nickel?
A magnet that produces a magnetic field by means of an electric current is this.
What is an electromagnet?
The power of an electric current, measured in volts is this.
What is voltage?
Materials that do not carry electric current easily.
What are insulators?
This is the standard unit to measure the strength of magnetic fields.
What is the Tesla.
This device is used to measure current through the interaction of an electromagnet and a permanent magnet.
What is a galvanometer.
Electric current in a wire causes....
What is an "magnetic field"?
What will increase the strength of an electromagnet?
Increase: number of coils of wire
or number of batteries attached
A circuit that has a single path for an electric current is this.
What is a series circuit?
This type of device has a primary coil with fewer loops than the secondary coil.
What is a step-up transformer
Washing machines and blenders and other common appliances rely on a common technology. Describe the energy conversion taking place.
What is electrical energy is converted to mechanical energy using magnetic fields
These are thin strips of metal through which the charges for a circuit flow, and create a gap in the circuit when too much load is applied.
What is a fuse.