Electricity test Flashcards
What does the term grounding mean?
Nutralizing or getting rid of charge on an object by getting it in contact with the ground
What is an Electroscope
A two peiced of tin and a negativily charged rod causing the two peices to seperate
What is a electrostatic series?
It is a list of materials that helps determine wether or not it will be gaining a posotive or negative charge.
What is static electricity?
electricity that does not move from the object
What is current electricity?
Electricity moving along a controlled path
What is an ammeter, how is it represented?
It is a device that measures the current in a circuit and is represented by an A in a diagram.
What is a Voltmeter and how is it represented in a circuit?
A voltmeter is a device that calculates the amount of voltage between two points in a circuit, it is represented by a V with two lines connecting to spesific places on the circuit diagram.
What are the nessesairy materials for a circuit?
Load
Switch
Connecters
Source
What is an insulator?
It is a material the electricity cannot pass through, ex. Rubber
What is a conductor?
It is a material that electricity can flow through freely
Which side of a cell do the electrons flow from?
The smaller line
What is an open circuit, what is a closed one?
An open circuit is a circuit that has a break in the pathway so everything freezes, a closed circuit has flowing electricity and the no breaks in the connectors.
What is charging by induction?
When a charged object is close but not touching a neutral object
What is chargeing by contact?
When a charged object touches a neutral object
What is the symbol and unit of measurment for current?
Current, Symbol = I , Unit of measurement = A (Amperes)