Physics Level 3 Greymouth High School: July 2023

Wednesday 26 July 2023

Week 2 Term 3 2023

Homework

Act 13A, p.205-206 Level 2 D.C. Circuit Revision

Act 13B, p.210-211 Internal Resistance of a Battery

Ex 6A, p.251-253 Resistor Networks

Ex 6B, P.261-262 Internal Resistance of a Battery

Act 13C, p.214-216 Kirchhoff's Laws

Ex 6C, p.267-272 Kirchhoff's Laws

Kichhoff's Laws

Kirchhoff’s Current Law
“At any junction in a circuit, the total current entering the junction equals the total current leaving the junction”
Kirchhoff’s Voltage Law
“Around any closed path of a circuit, the total of all the potential differences, V, is zero”

Kirchhoff's Rules for Circuit Analysis - Explanation

Kirchhoff's Rules for Circuit Analysis - Example 1

Kirchhoff's Rules for Circuit Analysis - Example 2

Kirchhoff's Rules for Circuit Analysis - Example 3

Thursday 20 July 2023

Week 1 Term 3 2023

Homework

Act 13A, p.205-206 Level 2 D.C. Circuit Revision

Act 13B, p.210-211 Internal Resistance of a Battery

Ex 6A, p.251-253 Resistor Networks

Ex 6B, P.261-262 Internal Resistance of a Battery

Electrical Charge

Current

Current is the rate of flow of Charge

I = Δq/Δt

Current

Voltage

Voltage (Potential Difference) is the change in energy (work done) to each coulomb of charge between two points on a circuit, or two points across an electric field

Voltage

Voltage (Potential Difference) is the change in energy (work done) to each coulomb of charge between two points on a circuit, or two points across an electric field

V = ΔE/Q