Retrieves a previously learned concept that may be useful for the learner to better understand a new concept being introduced.
It provides a concise and focused reminder of prior knowledge, helping the learner to access it without interrupting the main learning flow or requiring them to revisit earlier materials.
The Concept Review assumes the learner has already encountered the concept and aims to refresh their understanding of it while being aware that he already studied it.
When we talk about voltage, we are describing how much “push” is available to move electric charges through a circuit. This is why a higher voltage source can move charges more effectively through the same component.
Voltage can be understood as the work (energy) transferred per unit of charge. This helps explain why voltage is related to how much energy each charge can deliver to a device.
As seen in unit 3 of the current course, work is the transfer of energy that occurs when a force causes a displacement. In many contexts, we describe energy changes by measuring the work needed to move something.
Dominant and recessive traits explain why some characteristics appear more frequently in a population than others, even if both versions of a gene are present.
As seen in the previus course Biology I, a gene is a unit of heredity that contains information used to produce a specific protein or trait. Genes are passed from parents to offspring and exist in different versions called alleles.