Final answer:
The mentioned physics statements about electromagnetic induction of a falling magnet through a copper tube, the definition of tension in a connector, and whether high-voltage wires are insulated are true, true, and false, respectively.
Step-by-step explanation:
Understanding Physics Concepts
True or false: If you drop a bar magnet through a copper tube, it induces an electric current in the tube. The correct answer is b. true. When a magnet is moved through a conductive tube like one made of copper, it induces an electromagnetic force due to Faraday's law of electromagnetic induction. This effect slows the fall of the magnet creating a magnetic damping effect.
True or false: Tension is the result of opposite forces in a connector, such as a string or rope, that pulls each point of the connector apart parallel to the length of the connector. At the ends of the connector, the tension pulls toward the center. The correct answer is b. true. Tension can be thought of as the 'pull' transmitted through a flexible connector when it is pulled by forces acting from opposite ends.
True or false: High-voltage wires wrapped in an insulating material. The correct answer is b. false. High-voltage wires are not wrapped in insulation materials because they operate in open air, where the air itself acts as an insulator, and due to the practical difficulty and expense of insulating high-voltage lines.