Electricity Test Flashcards
What is a conductor?
A material that lets electricity flow through it
What is an insulator?
A material that electricity can not flow through
What is a resistor?
Limits the power of an electrical circuit. It also helps reduce the amount of electicity moving through the circuit.
List three examples of a conductor.
Metal:
Penny
Bulldog clip
Paper clip
Tinfoil
List three example of an insulator
Eraser
Paper cup
Cloth
List three examples of a resistor.
Coiled wire
Clay
Carbon
How can you test if something is a conductor, insulator or resistor?
Connect a battery with wires attached to a lightbulb and connect the two wires to an object to see if it conducts or insulates.
Electricity is an invisible form of energy. True or false?
True
How is electricity produced? What is electricity?
Electricity is a flow of electrons from one atom to another.
The strength of electricity is measure in what?
Amps
What is a watt?
A measurement of power
Give three examples of electricity in the home.
Stove
Fridge
Lamp
Heat
Appliances
Light
Outlets
Give three examples of electricity in school
Smartboard
Lights
Computers
Outlets
Give three examples of electricity in the community
Register
Freezer
Checkout at the store
Sliding doors
Street lights
Give three examples of electricity in nature
Ray fish
Electric eel
Lightning
Static
What can you add to the circuit if the light bulb keeps burning out?
You need a resistor in the circuit
- but if the light bulb is old it may gust be broken
What is a circuit
Is a complete path that electricity flows throw
What happens to the light bulb if the circuit is open?
The wires somewhere are not connect. Therefore, the light bulb does not turn on.
What happens to the light if it has an closed circuit?
The light bulb turn on.
What are the 4 types of circuits?
-Open
-Closed
-series
-parallel
What is a series circuit?
Series - one after another
There are no branch wires in the circuit.
If there is a series circuit with two light bulbs, what happens to the second light bulb if the first bulb burns out?
The second light bulb will not work because the circuit is open. The burn out light bulb is no longer connected.
If you want everything to work on a circuit after one component fails what type of circuit do you need?
Parallel Circuits
What are the safety precautions when working with electricity?
1) Don’t use electrical stuff around water
2) do not plug too much in one outlet
3) don’t have wires under a carpet
4) watch out for electrical poles and wires
A device used to control the flow of electricity
Light switch
A measure of the amount of electrical energy supplied to each charge.
Volts
The place which electricity enters or leaves an electrical component (battery).
Terminal
A type of energy in which small particles (called electrons) move through a device.
Electricity
A complete path for an electric current.
Circuit
A device used for generating electricity through an electrochemical reaction.
Battery
It is made of metal (often copper) ands used to make electricity circulate.
Electrical wire
What is an atom?
Atom is the building blocks of all matter (everything living and not living)
What are parts of an atom?
Nucleus
Protons
Neutrons
Electrons
What is in the Nucleus?
Protons and Neutrons
What moves around the nucleus?
Electrons
What part of the atom is positive?
Protons are Positive
What parts of the atom is negative?
Electrons
What part of the atom has no charge?
Neutrons “N” for No charge
What is static electricity?
When an object gains or loses electrons it becomes electrically charged.
How do you create static electricity?
You rub two things together to create fiction then the object gains or loses electrons.
What are the parts of a battery?
Positive terminal
Negative terminal
Case
What are the parts of a lamp / lightbulb?
Filament
Ceramic
Lead contact
Threaded metal base
Lead tip
