Electrical Basics
Most objects have equal amounts of positive and negative charges, which makes them this.
neutral
A device that melts to protect a circuit from too much current.
fuse
This is a paste or liquid that conducts electricity because it contains ions.
electrolyte
Measures strong currents
ammeter
Another name for potential difference
voltage
This is the steady flow of electrons in a circuit.
electrical current
A device that can be reset after stopping excess current.
circuit breaker
A cell that cannot be recharged.
primary cell
Measures weak currents
This device Provides small regular electrical currents to regulate heartbeat.
pacemaker
This unit measures the rate at which an electrical current flows.
amperes or amps
What is the difference between a series and parallel arrangement?
Series- voltage adds up, current stays the same, purpose is to get higher voltage (pos to neg, pos to neg, etc)
Parallel- voltage stays the same, current adds up, purpose is higher current, longer use (All Positives (+) together, all Negatives (–) together. )
Rechargeable batteries are also known by this name.
secondary cell
When an object has an uneven number of protons and electrons (imbalance of charge), and it is stationary, this is the definition of...
Static Electricity
what is the Difference between a cell and a battery?
Cell = one unit, Battery = multiple cells.
This unit measures how much electrical energy each charged particle carries.
volts
This prong on a plug provides a safe pathway for electricity if a short circuit occurs. (be specific)
ground
Connecting two or more cells together creates this.
a battery
The sudden movement of electrons jumping from one object to another is known as
static shock
What is the Direction of electron flow in a circuit?
Negative electrode → device → Positive electrode.
In an electrochemical cell, this type of energy is converted into electrical energy.
chemical energy
What are the 3 parts of a cell?
Zinc container → negative electrode.
Electrolyte paste → allows ions to move.
Carbon rod → positive electrode.
This process coats inexpensive products with a thin layer of silver or gold.
electroplating
What are the 3 laws of electricity?
Like charges repel
unlike charges attract
neutral charges are attracted to charged objects
What is the difference between amp and voltage?
Amp = flow of charges, Volt = energy per charge.