Final answer:
On schematics, a resistor marked as 1.0 kΩ refers to a resistance value of 1000 ohms, where 'k' stands for kilo, or one thousand. This notation is part of a standardized system used to easily denote large or small resistance values on circuit diagrams.
Step-by-step explanation:
On schematics, a 1000 Ω resistor listed as 1.0 kΩ implies that the resistor has a resistance of one thousand ohms. The 'k' in '1.0 kΩ' stands for kilo, which is a metric prefix representing a factor of one thousand (103). Therefore, 1.0 kΩ is shorthand for 1000 ohms, making it easier to read and understand the resistance values on schematics which can range over many orders of magnitude.
For example, some ceramic insulators used to support power lines can have resistances as high as 1012 ohms, and a meter-long piece of large-diameter copper wire might have a resistance of 10-5 ohms. In contrast, superconductors exhibit no resistance at very low temperatures. Resistance is determined by an object's shape and the material from which it is composed, affecting how electrical current flows through a circuit.