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Success Criteria:
I am able to understand the concept of positive and negative charges, recognising that opposite charges attract while like charges repel.
I am able to recognise that the elementary charge is the charge of a single proton or the negative charge of a single electron.
I understand the concept of conductivity and how it relates to the ability of a material to conduct electric charge, by the movement of free electrons.
Fun Fact
The term "coulomb" is named after Charles-Augustin de Coulomb, a French physicist who made significant contributions to the fields of electrostatics and magnetism in the 18th century. Coulomb's Law, which describes the electrostatic force between charged particles, is one of his most famous contributions. The naming of the unit "coulomb" honours his pioneering work in the understanding of electrical interactions and forces.
Key terms
Charge is a fundamental property of matter, representing the amount of electrical force carried by an elementary particle, such as an electron or proton.
Elementary Charge The elementary charge is the fundamental electric charge carried by a single proton or electron, approximately equal 1.6 x 10^-19 Coulombs
Coulombs is the measurement for charge, after Charles-Augustin de Coulomb, who did lots of research in electricity.
Conductor is a material that allows the flow of electric charge, typically through the movement of free electrons.
Insulators obstruct the flow of electrical current because of tightly bound electrons in their atomic structure, unlike conductors where electrons can move freely.
Learning Tasks
8.1 Knowledge and Understanding questions p.213
Van de Graff demonstration
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