Magnets
Magnetic Force and Electromagnetic Induction
Static Electricity and Electric Fields
Voltage
Current Electricity
100
On a magnet, where is the magnetic force strongest at?
The north and south poles (either pole on the magnet)
100
In the formula F = BIL, what does the "I" stand for?
Current or Electric Current
100
Electric field lines which do not overlap indicate that the two charges are ?
Either both positive or both negative
100
The voltage in a circuit is typically depicted by a _______ in the circuit.
Battery
100
This type of circuit has multiple paths for the current to follow.
Parallel
200
What type of force will the two bar magnets have with each other?
Attractive force
200
The strength of a magnetic force (F) depends on the magnitude of the charge (q), the strength of the magnetic field (B), and the ?
velocity of the charged particle (v)
200
Which electric field is strongest?
The electric field in "C". This is the case regardless of the negative or positive charge.
200
In a series circuit, we typically calculate voltate at every ________.
Resistor
200
What happens in a parallel circuit if one light bulb breaks and goes out?
The remaining lights stay lit.
300
The image below is an example of?
Magnetic domains
300
A magnetic force is created by the motion of a magnet OR by the motion of ______ ______.
Electric charges
300
In the image below of electric field lines, which two particle charges are depicted?
The charge on the left is positive, the charge on the right is negative
300
When voltage encounters a resistor in a series circuit, the voltage changes depending upon each individual resistor in the circuit. This is called _______ _________.
Voltage Drops
300
This device converts mechanical energy into electrical energy.
Generator
400
Substances that are strongly attracted to magnets due to the alignment of their magnetic domains. Iron, cobalt and nickel are examples.
Ferromagnetic
400
A changing magnetic field through a coil of wire induces an _________ _________ (2 words) in the coil which in turn causes a current to flow.
Electromotive Force
400
Defined as the buildup of charges on an object.
Static Electricity
400
Unit of measurement for electromotive force (EMF)?
Volts
400
This law confirmed that electromagnetic induction transferred magnetic energy into electrical energy, thus adhering to the law of conservation of energy.
Lenz Law
500
Michael Faraday showed that moving a magnet through a magnetic field creates an electric current, a phenomenon known as __________ ___________.
Electromagnetic Induction
500
Defined as "the total measure of the magnetic field lines passing through a given surface area, such as a wire loop"
Magnetic flux
500
The three methods for charging an object are?
Friction (rubbing), Conduction, and Induction
500
A step up transformer will increase the _______ and the # of ________ from the primary to the secondary.
voltage, loops
500
Describe alternating current.
Alternating current (the standard electrical current we use today) consists of charges that move back and forth in a circuit. It was fine tuned by Nikola Tesla.