Static electricity

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The document discusses the benefits of exercise for mental health. Regular physical activity can help reduce anxiety and depression and improve mood and cognitive functioning. Exercise causes chemical changes in the brain that may help protect against mental illness and improve symptoms.

Education

1) The document discusses static electricity and electric current. It explains how charging by friction can create static electricity and defines electric current as the rate of flow of electric charge. 2) Key concepts covered include the structure of atoms, charging by transferring electrons between materials, and how static charge is held on insulators while current involves the flow of electrons in conductors. 3) The document provides examples of current in series and parallel circuits, noting that current is the same everywhere in a series circuit while the total current entering a parallel junction equals the sum of the currents in the branches.

Current Electricity

OhMiss

The document discusses different types of electricity including static electricity, where charges move randomly for a short time, and current electricity, where there is a steady flow of electric charge through a conductor. It also discusses the key components that allow electricity to flow, such as batteries, which provide a source of electrical energy through chemical reactions in electrochemical cells. The document also covers concepts like potential energy, voltage, current, resistance, and the factors that affect resistance.

Electrical Energy

Sarah Jones

The document discusses key concepts about electrical energy including: - Atoms are made up of a nucleus surrounded by electrons that carry a negative charge. Protons in the nucleus carry a positive charge while neutrons carry no charge. - Static electricity occurs when surfaces rub against each other, transferring electrons between them and building up positive or negative charges. - Electric current involves the flow of electrons along a wire or conductor, which can be measured in amps. Voltage measures the energy supplied by these charges and is measured in volts.

Electrostatics

Chris Bush

1. The document discusses concepts related to electrostatics including electric charge, conductors, insulators, Coulomb's law, and how charge can be transferred or induced in objects. 2. Coulomb's law describes the proportional relationship between the electric force between two point charges and the charges' magnitudes and the distance between them. 3. There are several ways to charge an object, including friction, induction, conduction, and grounding. Charged objects exert forces on each other according to Coulomb's law.

Current Electricity.ppt

mrmeredith

This document discusses electric current, charge, and potential difference. It defines current as the flow of charge carriers, like electrons, around a complete circuit when a potential difference is created by a power source. Current is measured in Amperes (A) and symbolized as I. Charge is measured in Coulombs (C) and symbolized as Q. The relationship between current, charge, and time is defined by the formula ΔQ = IΔt, which calculates the change in charge as the current multiplied by the change in time. Several examples are provided to demonstrate calculating charge using this formula. The document also discusses basic electric circuits and formulas for calculating resistance using Ohm's law.

Electric Current

jeric lora

The document discusses electric current and related concepts. It defines current as the flow of electric charge from one place to another, measured in amperes. Current can be direct or alternating. Resistance is a property that weakens current flow and is measured in ohms. Ohm's law states current is directly proportional to voltage and inversely proportional to resistance. Kirchhoff's laws govern the analysis of electric circuits.

Introducing Electricity

scotfuture

This document introduces electricity and electric circuits. It discusses: 1) The sources of electricity as main electricity from power stations and electric cells for portable devices. 2) The components of an electric circuit including connecting wires, bulbs, switches, and cells. 3) How circuits can be arranged in series or parallel and the differences between complete and incomplete circuits.

Electric circuits

Leann Jester Daus

The document discusses electrical circuits and Ohm's Law. It defines key concepts like voltage, current, resistance and their relationships. Voltage is measured in volts and is the "push" that drives current through a circuit. Current is measured in amps and is the flow of electrons. Resistance opposes the flow of current. Ohm's Law states that current is directly proportional to voltage and inversely proportional to resistance. Circuits can be connected in series or parallel, affecting how current and voltage are distributed.

This document discusses two ways to represent atomic structure: electronic configuration and dot-and-cross diagrams. It provides examples of writing the electronic configuration of elements and constructing dot-and-cross diagrams. Electronic configuration represents elements numerically by listing the number of electrons in each shell. Dot-and-cross diagrams use dots or crosses to depict electrons and circles to depict electron shells.

History of the atom 4

Static electricity

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