Answer the question based on the following text.  Question:   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?    Text:  For a given medium, sound waves travel more slowly at lower temperatures.
increase

Answer the question based on the following text.  Question:   Eric increased the heat of the molecules. They now vibrate faster or slower?    Text:  Warmer molecules vibrate faster than cooler ones.
faster

Answer the question based on the following text.  Question:   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?    Text:  Longer length resistors will offer more resistance than shorter resistors.
shorter.