Electricity
This is the flow of electric charge through a conductor, measured in amperes (A)
What is current?
A charged object sitting still will experience this amount of magnetic force, even in a strong magnetic field
What is zero?
What is no force?
This is what you need to wrap around an iron nail to create an electromagnet
What is wire?
The electric potential between two points, creating an electric pressure
What is voltage?
A closed path through which an electric current flows
What is a circuit?
This property of a material opposes the flow of electric current and is measured in ohms (Omega)
What is resistance?
These are the two regions of a magnet where the magnetic force is strongest
What are north and south poles?
Add more of these around a nail to make an electromagnet stronger
What are coils or turns?
This unit of power can be calculated by multiplying voltage times current, or V x I
What is a Watt?
This is the direction electrons actually move in a circuit, which is opposite to the direction of conventional current
What is negative to positive?
What is uphill?
What is high pressure to low pressure?
Named after a German physicist, this law helps us calculate any one electrical quantity if we know the other two: voltage, current, or resistance.
What is Ohm's Law?
What is V = IR?
This is what happens when you bring the north pole of one magnet near the north pole of another magnet
What is they repel?
When you move a magnet in and out of a coil of wire, this is created in the wire
What is electric current?
When you put two 1.5 V batteries end-to-end in a flashlight, the total voltage becomes this
What is 3 volts?
This type of circuit will still allow electrons to flow even if there a component that separates
What is a Parallel Circuit?
This energy form is measured in Joules and is what you're actually paying for on your electric bill when measured over time
What is electrical energy?
What is kilo-Watt hours?
These invisible lines or arrows show the direction and strength around a magnet
What is magnetic field?
This device uses electricity to create magnetism to produce motion
What is a motor?
This substance inside a battery contains the chemicals that react to produce electrical energy
What is electrolyte?
In this type of circuit, if one light bulb burns out, all the other bulbs will go out too because there is only one path for current
What is a Series Circuit?
This happens to the voltage in a circuit when you double the resistance but keep the currrent the same
What is doubles?
A compass needle points toward this magnetic pole of Earth, which is actually located near the geographical North Pole
What is magnetic south?
Unlike permanent magnets, you can turn electromagnets on and off by controlling this
What is the electric current?
There are two metal ends of a battery where you connect wires to complete a circuit
What are terminals?
What are electrodes?
This happens to the brightness of all the light bulbs in a series circuit when you add more bulbs while keeping the same battery
What is they get dimmer?