Electrostatics

Presence and flow of electron charges

Presence and flow of electron charges

Electricity

Electrical nature of matter

Electric charge

Symbol for Electric charge?…

q

What are the 2 general types of Electric Charge?…

1. Positive

2. Negative

True or False:

The Law of Magnetism states that like poles attract and opposite poles repel…

False

What is the SI unit of Electric charge?…

Coulomb

What are the 3 ways to transfer charge?…

1. Friction

2. Induction

3. Contact

When two different insulating materials are rubbed, electrons get transferred from one body to another…

Friction

A changing magnetic field induces an electric current in a conductor, converting mechanical energy into electrical energy, as seen in generators.

Induction

Energy transfers when two objects physically interact…

Contact

Material that allows electric current to pass through…

Conductor

Material that does not allow electric current to pass through

Insulator

Result of interaction between 2 charged particles…

Electric Force

True or False

If two electrically charged objects are moved farther away from one another, the force between them gets smaller…

True

True or False:

Gravity can be repulsive…

False

True or False:

Gravitational force acts by pulling objects together

True

True or False:

Electric force can attract objects together or pull them apart

True

True or False:

Electric force is vastly more powerful than gravitational force

True

Field that exists at a point where a test charge experience an electrostatic force…

Electric Field

Symbol for Electric Field?..

E

Equation for Electric Field (E)

_______ or lines of force provide a map of the electric field in the space surrounding electric charges

Electric field lines

Electric field lines are directed (to/away) from positive charges and toward negative charges.

away

True or False:

Number of lines leaving a positive charge or entering a negative charge is proportional to the magnitude of the charge

True

Energy needed to move a charge against an electric field?…

Electric Potential Energy

Electric potential energy is _______ energy present in electric charges…

stored

The capability of the charged particle to do work?…

Electric Potential

Unit for electric potential?…

Volt

Work done per unit of charge while moving the charge between two points in an electric field to move a test charge between two points…

Electric Potential Difference

_______ is required to push/pull a charged particle against an electric field of a charged body….

Work

Component that stores electric charge and energy?…

Capacitors

Electric potential produced by either electrochemical cell or by changing the magnetic field…

Electromotive Force

A Electromotive Force forces a unit 1._____charge to move from the 2.______to the 3._____terminal of the source. It 4._____ the two charges from each other

1. Positive

2. Positive

3. Negative

4. separates

_______ is used for the conversion of energy from one form to another…

Generator

Flow/Movement of charged particles…

Current

Unit for current?…

Ampere

True or False:

A current can be present even w/o an electric potential between 2 points?…

False

What are the 2 types of Electric Current?…

1.________

2.________

1. Direct Current

2. Alternating Current

What type of current is this?…

• Charges move around the circuit in the same direction

• Uni-directional

  E.g. Batteries

Direct Current

What type of current is this?…

• Charges move first one way and then the opposite way

• Changes direction each half-cycle

  E.g. household current

Alternating Current

Electron Flow is _____ to ______…

Negative to Positive

Conventional Current (Direction to the Current) is _____ to ______…

Positive to Negative

Conducting path that allows a charge to flow from one terminal to the other

Electric Circuit

Produces a potential difference which can then make charges move…

Battery

What are the 3 components of a circuit?..

1. Source

2. Wires

3. Loads

Measure of the opposition….

Resistance

What is the SI Unit of Resistance?…

Ohm

A wire or an electrical device that offers resistance to electrical flow…

Resistor

Property of the conductor due to which it offers resistance to the flow of current through it..

Resistivity

Rate at which electric energy is converted into another form such as mechanical energy, heat, or light…

Electric Power