Static Electricity
Current Electricity
Electrical Safety
Cells and Batteries
Wild Card
100
What charge does a proton have? and what charge does an electron have?
protons have a positive charge and electrons have a negative charge
100
define current electricity
a steady and continuous flow of charged particles/electricity
100
what is a "short circuit"?
when electricity bypasses part of the normal circuit and take an unintended path to grounding.
100
what is the name of the paste or liquid that is found in electrochemical cells that conducts electricity
electrolyte
100
In an electrical circuit, what is the load?
a device that converts the electrical energy into the desired energy (eg lightbulb turning electrical energy into light energy)
200
define static electricity
a stationary electric charge
200
what are the 3 things necessary for a circuit?
conductor, energy source and a load
200
wood, rubber and dry air are examples of what?
insulators
200
what is the difference between a dry cell and a wet cell?
a dry cell has an electrolyte paste (dry) and a wet cell has a liquid electrolyte (wet)
200
what is the name of the tool used to measure voltage?
voltmeter
300
What is the name of this object?
Van de Graaf Generator
300
for electrical current to work there needs to be two conditions, what are they?
1. the flow of electrical current requires an energy source
2. electrical current will not flow unless there is a continuous path for charged particles to flow through
300
how does a fuse interrupt a circuit when there is too much current flowing through it?
they contain a thin piece of metal that is specially designed to melt if too much current passes through it
300
are rechargeable cells a primary cell, or a secondary cell?
secondary cell
300
what is more dangerous, high voltage or high amperage?
High amperage
400
what is the name for when a build-up of charge on an object is attracted to and jumps onto another object
electrical discharge
400
what does amperage measure?
the rate at which electrical current flows
400
how does a circuit breaker work?
if too much current is running through the breaker, a special wire will heat up and trigger a spring mechanism that turns off the flow of electricity
400
what is the difference between a battery and a cell?
a battery is made up of multiple cells, a cell is just on its own.
400
what kind of electrolyte is usually found in wet cells?
an acid
500
What are the two laws of electrical charges?
1. opposite charges attract each other
2. like charges repel each other
500
What does voltage measure?
a measure of how much electrical energy each charged particle has/"potential difference"
500
what is the purpose of the third prong in a three-prong plug?
connects to the grounding wire of a house in order to avoid a short circuit
500
what is electrolysis?
decomposition or separation of substances by an electrical current
500
what is electroplating?
the use of electricity to coat a thin layer of metal onto an object