Static Electricity
These are the particles that transfer when an object becomes charged.
What are electrons?
Like charges do this, while opposite charges to this.
What is repel and attract?
What is a voltage difference?
These elements contain magnetic domains.
What are iron, cobalt, and nickel?
When charges flow through a wire a magnetic field is produced that looks like this.
What are rings around the wire?
When a plastic rod is rubbed with fur it will have this charge.
What is negative?
The relationship between electric force and distance is described by this law.
What is the inverse square law?
This type of circuit is useless if on of the components fails.
What is a series circuit?
The region around a magnet where the magnetic field is strongest.
What is a magnetic pole?
A temporary magnet that is controlled by the electric current running through the coil.
What is an electromagnet?
When charges in an object are aligned or rearranged this is called ......
What is charge polarization?
The energy associated with a charged particle located in an electric field not at ground.
What is electric potential energy?
Ohm's law reveals that electric current is inversely proportional to this.
What is resistance?
Magnetic field lines run from this to this.
What is the north pole and south pole?
To convert electrical energy into mechanical energy you will use this.
What is an electric motor?
During this process a metal conductor can become charged without ever having contacted a charged object.
What is charge by induction?
To find the direction of an electric field you will use this.
What is a small positively charged particle?
To control the current in a circuit an engineer will use this.
What is a resistor?
A magnetic material becomes a magnet when this occurs.
What is magnetic domains becoming aligned?
In a transformer that has 250 turns of wire on its primary coil, and input of 100 volts is output as 400 volts. This is the number of turns of wire on the secondary coil.
What is 1000 turns?
When charge by contact occurs, one object can not become more negatively charged than the other object becomes positively charged. This is due to what law?
What is the law of conservation of charge?
A certain electric force exists between two charged particles. If the charge on one is cut to 1/5, the other charge is tripled, and the distance is cut to 1/3 the electric force will change by this factor.
What is 27/5?
If electricity costs 10 cents per kW-hr, it will cost this much to run a 100 Watt appliance for 20 hours.
What is 20 cents?
A freely rotating magnet will align itself so that its south pole points toward this.
What is the Earth's geographic North pole?
An electric generator produces electric energy using this process.
What is electromagnetic induction?