Electrostatics
There are ______(number) varieties of electric charge. They were named ________ and ________ by Benjamin Franklin.
What is 2, positive, and negative?
This is the invisible mechanism by which charges can exert forces on other charges at a distance.
What is an electric field?
Give one example of a magnetic metal and one example of a nonmagnetic metal?
What is (iron, cobalt, nickel, neodymium) and (any other metal)?
This is the SI unit of charge.
What is Coulomb (C)?
Hans Christian Orsted discovered that moving electric charge (electric current) will spontaneously create this.
What is a magnetic field?
Like charges will _______ while opposites will ______.
What is repel and attract?
By convention, arrows always point away from _______ charges.
What is positive?
This property of the electron is responsible for magnetism.
What is spin (angular momentum)?
If the charge of one particle (q1) is tripled, this will happen to the electric force.
What is tripled (3x greater)?
This device utilizes electric current to create magnetic fields which can then create mechanical energy (motion).
What is an electric motor?
Name one fundamental particle that is a source of electric charge.
What is an electron (lepton) or quark?
Draw a single negative field.
What is...
This makes one magnet stronger than another.
What is more electrons aligning their spins?
The force between 2 charges is 2 Newtons. If the distance (d) between charges is 3 times smaller (1/3), this will be the new force.
What is 9x larger or 18 N?
Michael Faraday discovered that a moving magnetic field will spontaneously create this.
What is an electric current?
This is when an object builds up an excess of electrons or is stripped of electrons.
What is static electricity, static charge, or electrostatics?
Draw an electric attraction field.
What is...
Explain if you cut a magnet in half, is each half still a magnet?
What is: yes, each half is still magnet. Each half will still have a north and south pole. Magnets cannot have just one pole.
This factor (charge or distance) has the largest effect on electric force.
What is distance?
This device uses mechanical energy to move a magnetic field which then can create electricity.
What is a generator?
This is the force between a charged object and a neutral object.
What is attraction?
If you are drawing a magnetic repulsion field, you will draw a _______ pole facing a _______ pole.
What is north facing north, or south facing south?
By convention, field lines/arrows always point toward _______ poles.
What is south?
Two charges exert a force of 5 N on each other. If both charges are quadrupled and the distance between them is doubled, what is the new electric force?
What is 20 N?
Explain how a metal detector can detect the presence of ANY metal, not just ferromagnetic ones.
A metal detector uses both Oersted and Faraday's principles.