Answer the question below:   If Milo is listening to the radio in his room and the room gets hotter, what happens to the speed of the sound waves generated by the radio increase or decrease?    Assuming that:  For a given medium, sound waves travel more slowly at lower temperatures.
increase

Answer the question below:   Eric increased the heat of the molecules. They now vibrate faster or slower?    Assuming that:  Warmer molecules vibrate faster than cooler ones.
faster

Answer the question below:   Ed is adding a resistor to a circuit. If he needs it to have less resistance, he should add a resistor that is shorter. or longer?    Assuming that:  Longer length resistors will offer more resistance than shorter resistors.
shorter.