Electricity
A material through which electrical charge can easily flow.
What is a conductor?
The electrical charge changes at regular intervals.
What is an alternating current?
An electrical component that allows electrical current to flow in and out in a single direction.
What is a diode?
An electrical circuit in which current can pass through more than one path.
What is a parallel circuit?
The area around a magnet in which the magnetic force can be felt.
What is the magnetic field?
A charge produced by an excess or shortage of electrons.
What is an electrical charge?
The electrical charge only flows in one direction.
What is direct current?
A substance that can conduct electrical current.
What is an electrolyte?
The ability of a material to resist the flow of electrical current.
What is resistance?
One of the two ends of a magnet where the force of attraction or repulsion is the strongest.
What are the magnetic poles?
The transfer of electrical charge without contact between materials.
What is induction?
A material that can act as a conductor or insulator based on its temperature.
What is a semiconductor?
A positively charged diode.
What is an anode?
An electrical circuit in which current passes through components that are one after another.
What is a series circuit?
A magnet that can be switched on and off with electric current.
What is an electromagnet?
A material through which an electrical charge cannot easily flow.
What is an insulator?
The work needed to push a certain amount of electric charge between two points on a conducting pathway; also known as voltage.
What is potential difference?
A negatively charged diode.
What is a cathode?
The overall resistance of a circuit increases.
The force produced when an electrical current flows through a wire; it forms a magnetic field.
What is electromagnetism?
Like charges repel each other and opposite charges attract each other.
What is the Law of Electrostatics?
Potential difference is necessary for electric current to flow as there has to be the potential for the electrons to flow between two places.
Two plated of metal and an electrolyte solution, either a salt or an acid.
What are the basic components of a simple cell?
The overall resistance in a circuit decreases.
How is resistance affected when the resistors are connected in a parallel circuit?
They can be turned on and off whereas they are always on. You can alter the attractive strength by changing the current.
What are the two benefits of electromagnets over permanent magnets?