This device uses motion in a magnetic field to produce an electric current
What is a generator?
100
This device uses electromechanical energy to dry to your hair
What is a blow dryer?
100
This term refers to the relationship between electricity and magnetism when an electric current produces a magnetic field.
What is electromagnetism?
100
The atomic particle that transfers in order to build static electricity.
What is an electron?
100
True or False: As the number of loops decreases, the magnetic field strength increases.
What is false?
200
A device that uses the motion of the wind to create energy
What is a windmill?
200
This device uses electro-mechanical energy to cool the air
What is a fan?
200
The three characteristics of a magnetic field produced by an electric current
What is the field can be turned on and off, have its direction reversed, or have its strength changed?
200
The three methods by which electrons can be transferred to build up static electricity.
What is friction, conduction, and induction?
200
In the Review and Assessment section of your textbook on page 104, question #21: place the electromagnets in order from strongest to weakest by alphabet.
What is DBCA?
300
A device that increases or decreases voltage
What is a transformer?
300
This device uses electro-mechanical energy to power your car.
What is a motor?
300
Causes a compass needle to move away from magnetic north
What is electric current?
300
This is what happens when static electricity is caused by friction.
What is when friction causes electrons to transfer from one object to another causing one to be positively charged and the other to be negatively charged causing an attraction between the two objects?
300
This is the role that a turbine plays in in generating electricity.
What is turning the armature in a generator?
400
This device uses the motion of water to create energy
What is a turbine?
400
This force produces motion in an electro-mechanical device.
What is magnetism?
400
A strong magnet that can be turned on and off. Can be created by a solenoid with a ferromagnetic core.
What is an electromagnet?
400
Static charges created by direct contact.
What is conduction?
400
The two ways that an electric current can be induced
What is the conductor moving through a magnetic field or the movement of a magnet through a coil of wire?
500
This device uses the power of the sun to generate power
What is a solar cell?
500
This part of a motor moves according to the direction of the current
What is an armature?
500
Increasing the number of loops and placing them closer together creates this effect on an electromagnet.
What is increasing the strength?
500
This happens when a negatively charged object gets close to another object and positive charges are attracted while negative charges are repelled. As a result, the edge of the nearby object becomes positively charged.
What is induction?
500
In Ffigure 2 on page 86 of the text, what causes the wires to move when the current is present?
What is a wire with a current interacting with a magnetic field causing the wires to move according to the direction of the current.