Final answer:
The statement about high-voltage wires being wrapped in insulating material is false; they are held by insulating connectors but not wrapped. Tension in a tug-of-war rope equals the forces applied on either end until it breaks, resulting in unbalanced forces. Tension spreads over the length of the material, pulling towards the center at the ends.
Step-by-step explanation:
The statement regarding high-voltage wires is false. These wires are indeed held aloft by insulating connectors to prevent electricity from traveling down the towers to the ground. However, the high-voltage wires themselves are not generally wrapped in insulating material as they need to be able to dissipate heat and are placed high enough to be out of reach, thus not requiring additional insulation like household wires.
In a tug-of-war, when the rope snaps, it indicates that the tension in the rope exceeds its breaking strength. The tension is the result of opposite forces pulling on either end of the rope. Before the rope breaks, these forces are equal in magnitude and opposite in direction, maintaining a state of equilibrium. Once the rope snaps, the forces become unbalanced because the physical connection is lost.
The definition of tension is true. Tension is the force that acts along the length of a connector (such as a rope or cable) when it is pulled by forces acting from opposite ends. This tension pulls every part of the connector outwards towards the ends, while at the same time, each end of the connector experiences tension pulling it towards the center.