Electricity Flashcards
(23 cards)
Objects get charged because
They gain or lose electrons
Charged Objects may attract
Neutral objects
An example of static electricity is
Getting shocked by a plastic slide, Pulling jumper off, Rubbing your hair
The production of static electricity is generally associated with:
Friction
Static electricity is not suitable for operating electrical appliances because the charged particles are:
Not moving
Lightning strikes occur as a result of
Particles moving inside the cloud
The flow of electric charge is called
Electric Current
What is a typical load in an electrical circuit?
A Globe
What is the definition of load in an electrical circuit?
The resistance, weight or power drain sustained by a machine or electrical circuit
If a 6 volt cell is connected in series with a 2 volt cell, the overall voltage obtained is
8 Volts
What are some good conductors of electricity
Copper, Brass, Steel, Gold and Aluminium
When connecting an ammeter to an electrical circuit, the positive terminal of the meter should be connected closes to
The positive terminal of the power supply
The electrodes in a car batter are surrounded by a solution of
Sulfuric Acid
In Australia, most of the electricity is converted from
The Chemical energy in coal
Does a neutral object contain electric charge?
Yes, positive and negative charges are present but balance each other making it neutral
Do neutral charged objects, attract to positive and negative charges?
Any charged object, whether positively charged or negatively charged will have an attractive interaction with a neutral object
How is a filament (Tungsten) in a globe responsible for producing light
When you pass electric current to a filament it will glow
What is the difference between current and voltage?
Current is the rate at which electric charge flows past a point in a circuit. Voltage is the electrical force that would drive an electric current between two points.
What is an electrical insulator?
Electrical insulators don’t conduct electricity as it has a lot of resistance to the flow of current
What is an electrical conductor?
Electrical conductors pass electricity through them and have less resistance to the flow of current
A group of two or more cells is called
A battery
An Ammeter is connected in which circuit?
Series Circuit
A Voltmeter is connected in which circuit?
Parallel Circuit
