WELCOME BACK MINIONS Have all materials, be in your seat, and be ready to learn.

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Presentation transcript:

WELCOME BACK MINIONS Have all materials, be in your seat, and be ready to learn.

WARM-UP QUESTIONS… How do electric charges (Positive and Negative) interact? What is an electric field? How does static electricity build up and transfer?

ELECTRIC CHARGE What are the 2 charged parts of an atom? Electrons (-) and Protons (+) Charges interact in 3 ways…

ELECTRIC CHARGE Seem familiar? Just like magnets! One big difference! Magnets MUST have a North and South Pole. Electric charge can be exist alone as a positive or a negative!

ELECTRIC FORCE Force Push or Pull of an Object. Magnetic Force Attraction or Repulsion between Poles. What about Electricity? Electric Force Attraction or Repulsion between electric charges!

ELECTRIC FORCE Magnetic Poles and Electric Charges have something else in common… They exert their forces over a distance! Electric Field Region around a charged object where the object’s electric force is exerted on other charged objects.

ELECTRIC FORCE

Strength of the Field is related to the distance from a charged object. Greater Distance = Weaker Closer Distance = Stronger

STATIC ELECTRICITY

Static Electricity The buildup of charges on an object In static electricity, charges build up on an object, but they do not flow continuously!

TRANSFERRING CHARGE See if you know this one… Law of Conservation of Charge Charges are neither created nor destroyed. Three methods charges are transferred to build up static electricity…

TRANSFERRING CHARGE

Friction Transfer of electrons from one object to another by rubbing. Conduction Transfer of electrons from a charged object to another by direct contact. Induction Movement of electrons from one part of an object that is caused by the electric field of the second object.

STATIC DISCHARGE

Static Discharge The loss of static electricity as electric charges transfer from one object to another.

QUESTION TO THINK ABOUT Why is it easier to encounter static electricity when the air is dry, but not when the air is humid?

OH! Humidity: How saturated the air is with water vapor. Water helps forms a conducting pathway to ground the charge.

RECAP How do electric charges (Positive and Negative) interact? What is an electric field? How does static electricity build up and transfer?