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Electrostatics
Question | Answer |
---|---|
Define electrostatics. | Branch of physics dealing with stationary or resting electric charges. |
Define electrification. | Insufficient amount of electrons. |
Define negative electrification. | Excessive amount of electrons. |
Define ground. | Connected to wet earth by a conductor. |
List the 3 methods of electrification. | Friction, Contact, Induction |
What does an electroscope do? | It detects the presence and sign of an electric charge. |
Define electrification by induction. | When an uncharged metallic object experiences a shift of electrons when brought into the electric field of a charged object. |
What is the first law of electrostatics? | Like charges repel; unlike charges attract. |
What is the second law of electrostatics? | The Inverse Square Law. |
What is the third law of electrostatics? | Charges reside on the external surfaces of conductors. |
What is the fourth law of electrostatics? | The concentration of charges on a curved surface of a conductor is greatest where curvature is greatest. |
What is the fifth law of electrostatics? | Only negative charges can move in a solid conductor. |
What is another name for static electricity? | Resting charges. |
What happens when electrification occurs? | Only the electrons move. |
What is the movement of electrons in insulators? | Electrons do not flow freely. |
A charged body brought near an uncharged body is an example of what type of electrification? | Induction |