Final answer:
True, the amplitude of waves is affected when they align; false, high-voltage wires are not wrapped in insulating material but are held by insulating connectors; and false, voltage is not the same at every point in a given wire.
Step-by-step explanation:
Question 58 asks whether the amplitude of one wave is affected by the amplitude of another wave only when they are precisely aligned. The answer to this is true. When waves are in phase and their peaks and troughs align perfectly, they can constructively interfere with one another, amplifying the resulting wave. Conversely, when waves are out of phase, they may destructively interfere, reducing the amplitude of the resultant wave.
Question 16 inquires about whether high-voltage wires are both held aloft by insulating connectors and wrapped in an insulating material. The answer to this question is false. While it is true that high-voltage wires are held up by insulating connectors, these wires are generally not wrapped in insulating material because the air around them acts as an insulator and the high placement of the wires keeps them away from being touched inadvertently by people or animals.
The GRASP CHECK question is regarding circuit diagrams and whether the voltage is the same at every point in a given wire. The answer is false. Voltage can vary across different points in a circuit due to the presence of components or resistance that cause voltage drops.