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1 Ch - Phy Sc M 11

Physics - Electricity and Magnetism (Apologia Physical Science M 11)

QuestionAnswer
photon a small "package" of light energy that acts like a particle
charging by conduction charging an object by allowing it to come into contact with an object that already has an electrical charge
charging by induction charging an object without direct contact between the object and a charge
electrical current the amount of charge that travels past a fixed point in an electric circuit each second
conventional current current that flows from the positive side of the battery to the negative side
resistance the ability of material to impede the flow of charge
open circuit a circuit that does not have a complete connection between the two sides of the power source; does not allow the current to flow
Charged particles do not glow because the photons they emit are not visible to the human eye.
An electrical circuit is reasonably safe when both the voltage and the current are low.
If a material does not respond to a magnet, you can assume that its atoms cannot be aligned.
Electricity is the flow of _______________, which are negative. electrons
conductor a material that easily carries an electrical current
James Clerk Maxwell Scottish physicist best known for mathematically demonstrating that electricity and magnetism were governed by the same force
Like charges repel one another.
Opposite charges attract one another.
The force between two charged objects is ________________________ ___________________________ to the amount of charge on each object. directly proportional
The force between two charged objects is ______________________ _________________________ to the square of the distance between them. inversely proportional
When an atom absorbs energy, electrons can become more excited and move to a higher energy orbit.
When electricity flows through the filament of a light bulb, the atoms in the filament begin to randomly vibrate around, producing heat. When the filament gets hot enough, it emits light in the visible spectrum.
The electric field of a charge is the effect it has on other charges in the space around it.
static electricity the buildup of electrical charges within or on the surface of a material
Charge can be transferred by friction, conduction, or induction.
charging by friction charging an object by rubbing two items together where one transfers electrons to the other
voltage how hard a battery "pushes" electrons through an electrical orbit
Batteries contain chemicals on the POSITIVE side that will _____________ electrons. LOSE
Batteries contain chemicals on the NEGATIVE side that will _____________ electrons. GAIN
Created by: MrsHough
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