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Index
»
Chapter 5 Electricity and Magnetism Revision
»
Chapter 1
»
Level 1
level: Level 1
Questions and Answers List
level questions: Level 1
Question
Answer
A particle with equal amounts of positive and negative charge
Electrically Neutral
A particle with unbalanced amount of positive or negative charge
Electrically Charged
Protons are more than electrons
Positively Charged
Electrons are more than protons
Negatively Charged
Electrically charged objects loose the unbalanced electric charge
Electric Discharge
A material in which electric charges easily move
Electric Conductors
A material in which electric charges cannot easily move
Electric Insulators
The force that two electrically charged objects apply to each other
Electric Force
The invisible region around any charged object where an electric force is applied
Electric Field
Is the movement of electrically charged particles such as electrons
Electric Current
A constant one way flow of electrons
Direct Current
Electric current that continually reversed direction
Alternating Current
Is a closed , or complete path in which electric current flows
Electric Circuit
Is a measure of how difficult it is for an electric current to flow
Electric resistance
Is the amount of energy used to move one coulomb of electrons through the circuit.
Voltage
An invisible area surrounds magnet and electric current
Magnetic Field
s a push or a pull a magnetic field applies to either a magnetic material or an electric current
Magnetic force
They are curved lines going from the north pole to the south pole
Magnetic fields lines
Is a region in a magnetic material in which the magnetic fields of the atoms all point in the same direction
Magnetic Domain
A soft magnetic material that becomes a magnet when it is in the magnetic field of a permenant magnet
Temporary Magnets
A material with magnetic domain that stay locked in alignment
Permenant Magnets
A temporary magnet made with a current -carrying wire coil wrapped around a magnetic core .
Electromagnet: