A-LEVEL PHYSICS: Introductory: Charge & Current Flashcards
There are Many Different Types of ___ in the Universe.
Particles.
Each Type of Particle has Certain ___. Such as: (2)
Properties. eg:
-Mass.
-Charge.
Charge Comes in 2 Forms: (2)
-Positive Charge (+)
-Negative Charge (-)
Electric Charge (Q) is a ___ Quantity.
Physical.
Electrical Charge (Q) Can be ___. Hence, it has a ___ ___ & ___.
Measured. Numerical Value, Unit.
What is the Unit of ‘Charge’?
Coulomb, Q.
What are ‘Charged Atoms’ Called?
Ions.
When do Atoms Become Ions?
Atoms Become Ions (become Charged) when they either Gain or Lose Electrons, giving them either an Overall - or + Charge Respectively.
What is the ‘Law of Conservation of Charge’?
The Law of Conservation of Charge:
The Net Charge in a System Remains Constant, Provided Charge Cannot Enter or Leave the System.
What is ‘Elementary Charge’?
The Elementary Charge (denoted as e) is the Smallest Unit of Electric charge that is considered Indivisible in most practical cases. It is the Charge Carried by a Single Proton (Positive Charge) or a Single Electron (Negative Charge). The value of the Elementary Charge is approximately:
e = 1.602 x10^-19 C
What happens when an Atom Loses 2 Electrons?
When an Atom Loses 2 Electrons, it Becomes an Ion with a (Positive) Charge of +2.
What happens when an Atom Gains 2 Electrons?
When an Atom Gains 2 Electrons, it Becomes an Ion with a (Negative) Charge of -2.
Any Object may have a…
Charge.
Charge is Never ___ Nor ___.
Created, Destroyed.
Like Charges ___. Opposite Charges ___.
Repel, Attract.
