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# Year 11 Physics

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## Module 4 | Electricity and magnetism

### Content 1: Electrostatics

#### Lesson 1 | Charged objects investigations

• conduct investigations to describe and analyse qualitatively and quantitatively:
– processes by which objects become electrically charged (ACSPH002)
– the forces produced by other objects as a result of their interactions with charged objects (ACSPH103)
– variables that affect electrostatic forces between those objects (ACSPH103)

• using the electric field lines representation, model qualitatively the direction and strength of electric fields produced by:
– simple point charges
– pairs of charges
– dipoles
– parallel charged plates

#### Lesson 2 | Charged object interactions

• conduct investigations to describe and analyse qualitatively and quantitatively:

– the forces produced by other objects as a result of their interactions with charged objects (ACSPH103)
– variables that affect electrostatic forces between those objects (ACSPH103)

• apply the electric field model to account for and quantitatively analyse interactions between charged objects using $\vec{F} = \frac{1}{4 \pi \varepsilon _{0}} \times \frac{q_{1}q_{2}}{r^{2}}$ (ACSPH102)

#### Lesson 3 | Investigating electric fields

• using the electric field lines representation, model qualitatively the direction and strength of electric fields produced by:

– simple point charges
– pairs of charges
– dipoles
– parallel charged plates

#### Lesson 4 | Drawing electric fields

• using the electric field lines representation, model qualitatively the direction and strength of electric fields produced by:

– simple point charges
– pairs of charges
– dipoles
– parallel charged plates

#### Lesson 5 | Electric fields

• apply the electric field model to account for and quantitatively analyse interactions between charged objects using:
$\vec{E} = \frac{\vec{F}}{q}$ (ACSPH103, ACSPH104)
$\vec{E} = -\frac{v}{\vec{d}}$
$\vec{F} = \frac{1}{4 \pi \varepsilon _{0}} \times \frac{q_{1}q_{2}}{r^{2}}$ (ACSPH102)

#### Lesson 6 | Equipotential

• analyse the effects of a moving charge in an electric field, in order to relate potential energy, work and equipotential lines, by applying: (ACSPH105)

$V\: \: \frac{\Delta U}{q}$  where U is potential energy and q is the charge