Final answer:
The statement about high-voltage wires being insulated is false, as they are not typically covered with insulating material. The statement about tension is true, as it accurately describes tension as forces pulling along the length of a connector like a rope or cable.
Step-by-step explanation:
The statement about high-voltage wires being wrapped in an insulating material is false. High-voltage wires connected to towers are typically not covered with an insulating material because the air around them provides sufficient insulation, and adding material would increase weight and decrease efficiency. The wires are indeed held aloft by insulating connectors to prevent electrical current from traveling down the towers they are attached to. These connectors ensure the wires are insulated from the grounded tower structures.
As for the concept of tension, the statement given is true. Tension is a force that operates along the length of a connector, such as a rope or cable, and results from opposing forces pulling on either end. The tension force indeed acts along the length of the connector, attempting to pull it apart, and at the ends, tension pulls towards the center of the connector.