Electricity
Electric Current
Electric Circuits
Magnetism
Magnetism & Electricity
100
What is the charge of a proton?
Positive
100
How do you increase resistance in a circuit?
Making wires thinner, longer, or hotter.
100
Switch (open)
100
Strength of force between 2 magnets depends on:
distance between them
100
What does an electric motor do?
Converts electrical energy into mechanical energy
200
List the charges that would repel each other.
Positive - Positive
Negative - Negative
200
What are 3 basic things needed to create a circuit?
Battery, Wires, Bulb
200
This type of circuit only has one loop for current to flow through
Series
200
What do the lines around this magnetic represent?
Magnetic Field
200
When electric current flows through a wire, what forms around the wire?
Magnetic Field
300
What is the difference between a conductor and an insulator?
Conductor allows electrons to pass through whereas insulator stops or slows the flow of electrons.
300
Which formula does Ohm's Law refer to?
I = V/R
300
What would be useful (especially in a parallel circuit) to have that regulates the flow of current within a circuit, and prevents damage or fires?
Circuit breaker or fuse box
300
Only a few metals are attracted to magnets or can be turned into magnets. List them.
Iron, cobalt, and nickel
300
What are 2 ways that you can increase the strength of a magnetic field in an electromagnet.
Adding more turns to solenoid or wire coil
Increasing current passing through the wire
400
Electric charges can be transferred from one object to another, but it cannot be created nor destroyed.
Law of Conservation of Charge
400
If the battery produced 12.6 Volts and a 6 Ohm resistor. What would be the current flow?
2.1 Amps
400
What is is called when there is both series and parallel circuits combined?
Complex circuit
400
group of atoms with aligned magnetic poles (too small to be seen with your eyes)
Magnetic Domains
400
current that flows in only one direction through a wire
DC
500
An imbalance of electrical charge on an object.
Static Electricity
500
What voltage is needed to cause a 2A current flow through a 10Ω resistor?
20 V
500
What is the function of a switch in a circuit?
to turn on and off the flow of current
500
How are permanent magnets made?
By placing magnetic material in a strong magnetic field, forcing magnetic domains to line up.
500
Reverses the direction of the current flow in regular patterns
AC