Science (2nd exam)
the fundamental Property of Particles which allows then to attract and repulse with each other when Placed in an electrical field
Charge
is a Positively charged Particle
Proton
is a negatively Charged Particle
Electron
the flow of Charged Particles in a specified direction Per unit time
Electric Current
a type of material where Charges can easily move
Conductor
materials that do not allow the flow of charges
Insulator
materials that allow lesser amount of charges or resist a heavy flow of them
Semiconductor
the charged Particles flow steadily in a single direction
Direct current
direction of flow of Charges Changes or alternates
Alternating current
difference in the amount of energy that Charge carriers have between two points in a Circuit
Potential difference
the difference in electric Potential Per unit time
Voltage
is the device used to measure potential difference or Voltage
Voltmeter
device that maintains a fixed voltage
Voltage source
is one of the most Convenient voltage sources
Dry cell
Is commonly used in Vehicles because it is long-lasting and it provides greater current than dry cells
Wet cell
is a small single cell battery Shaped like a button
button cell
defined as the difficulty that occurs in the flow of electrons
Electrical resistance
Some materials are better Conductors than others and offer less resistance to the flow of electrons
Type Of material
is one of the best conductors but is never used in wires of household circuits due to its cost
Silver
are among the least expensive materials with suitable conducting ability to Permit their use in Wires of household circuits
Copper/ aluminum
of a material is dependent upon the materials electronic structure and its temperature
Resistivity
states that the current in a circuit is directly Proportional to the voltage and inversely proportional to the resistance
Ohms Law
a closed Path for electricity Where electric Charges can flow
Electric circuit
Where the circuit starts to flow
Source
where the Charge Particles can flow
Path
a sealed metal contact that completes the circuit when it is turned On and breaks the Connection when it is turned off
Switch
a general term for the Part of the circuit that consumes electrical energy
Load
a type of Connection that has only one path for the Flow of charges
Series Circuit
a type of circuit in which electric current Passes through a branch and splits into different connecting wires to supply current at different loads simultaneously
Parallel circuit
it is a process that allows excess charges to flow in a Wire that is connected to the ground
Grounding or earthing
it is made of black Powder br gunpowder, This material slowly burns, which prevents the overloading of electric current in a circuit
Safety fuse
it can be Plastic or Ceramic. It can Prevent one from being electrocuted because electrons cannot flow freely In such a kind of material
Electrical insulator
a series of Shockwaves traveling Through Earth resulting from a sudden release of energy
Earthquake
body waves Which may move in all directions to earths interior during an earthquake
seismic waves
the Point within Earth where an earthquake rupture starts
Focus
is about 100 km thick shell of relatively cool, rigid and brittle rock Overlying the softer, hotter asthenosphere zone within the Earths upper mantle
Lithospheric Plate
the total amount of energy released during earthquake
Magnitude
the estimate effects of an earthquake to people, structures and environment
Intensity
the mixing of sand or soil and ground water during the shaking of a moderate or strong earthquake
Liquefaction
can be tens of feet high when they hit the shore and can do enormous damage to the coastline
Tsunami
is like small tsunamis
Seiche
Is a proces or Phenomenon of atmospheric, hydrological or Oceanographic nature that may cause loss of life injury or athe health Impacts
Hydrometeorological Hazard
is also known as typhoon for those Occurring in the Northwest Pacific region
tropical cyclone
the strength of winds can destron light weight structures and uproot Plants and trees
Strongwinds
Storm systems characterized by rapidly spiraling storms, low -pressure center, and intersly strong winds
tropical cyclones