Conductor: A material that allows current to flow through it due to free charged particles.
Earthed: When an object allows its charge to flow to earth and becomes neutral.
Earthing strap: A flexible metal strap that provides a path of least resistance for charge to travel down to earth.
Electrostatic charge: An electric charge that is not in motion; it is not flowing. Basically electricity without the current.
Insulator: A material that does not allow current to flow through it as it has no free charged particles.
Static Electricity: Unmoving electricity, electrostatic charge.
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Section 4 b) Summary
The nine types of energy important to learn are: Electrical energy Light Sound Kinetic Nuclear Thermal Gravitational Chemical ...
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4.2 describe energy transfers involving the following forms of energy: thermal (heat), light, electrical, sound, kinetic, chemical, nuclear ... -
3.10 understand that light is part of a continuous electromagnetic spectrum which includes radio, microwave, infrared, visible, ultraviolet... -
Waves can be reflected, refracted and diffracted, whether they're transverse or longitudinal. Sound waves can be measured using a devi...
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