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Gimme the definitions
What's the word?
Tell me why?
Complete me
Examples
100
Static Electricity
What is a build up of charge in one place. When there is a build up of charges, the charges will overflow and go towards the opposite charge (Think of Bill Nye's Styrofoam analogy)
100
Hold their outer electrons loosely
What is a conductor
100
Why lightning occurs
Negative charges build up in clouds. Once they are strong enough, they jump to an area of opposite charge. There are a build up of positive charges on the ground. When positive and negative charges meet, they attract. Electrical energy given off as flash of light and heat.
100
When an object has more protons than neutrons, the object is said to be _______________
positively charged
100
mercury
What is a conductor
200
An insulator
What is a material that prevents the flow of electrons
200
Connecting an object to a large body, like Earth, that can remove an electric charge from the object
What is grounding
200
the safest place to be during a thunderstorm is inside a car
Car is a conductor. It allows electrons to flow easily, thus reducing the build up of charges
200
When a charged object comes in contact with a neutral object, they ___________ each other.
Attract
200
rubber
What is an insulator
300
An electron
What is a negatively charged part of an atom
300
an electric current that repeatedly reverses direction
What is Alternating Current (AC)
300
You should never use electrical appliances near water
While absolute pure water is non-conductive, tap water contains minerals and ions that are conductive and allow the flow of electrons
300
For a given amount of charge, the amount of force _____________ as distance _____________
What is decrease/increase or increase/decrease
300
silicon
What is a semi-conductor
400
Closed Circuit
the current must be able to return to its source
400
The movement of electrons through a conductor
What is Electric Current
400
It is important that wires in your wall are covered in plastic
The plastic is an insulator that prevents you from making direct contact with the electricity in the wire
400
When you are charging an object by induction, you are charging a neutral object by bringing another charged object close to, _______________, the neutral object
but not touching
400
Photocopier
What is static electricity
500
Law of Electric Charges
Objects that have opposite charges attract each other Objects that have like charges repel each other
500
A list of materials that produce an electrostatic charge when rubbed together, arranged in such an order that a material has the tendency to give electrons at the top of the list and takes electrons at the bottom of the list
What is the electrostatic series
500
What happens to the charges when a glass rod is rubbed against a plastic bag?
Glass rod has the tendency to give away electrons Plastic bag has the tendency to take electrons electrons from glass rod will move towards protons in plastic bag glass rod and plastic bag attract glass rod becomes positively charged and plastic bag becomes negatively charged
500
In charging by conduction, when there is a difference in charge between two objects that are the _______________, contact causes e- to be transferred between the objects until the charge is balanced
Same Size
500
Cell Phones
What is Current Electricity