Read the passage below and choose the right answer to the following question (choices are increase or decrease ):  For a given medium, sound waves travel more slowly at lower temperatures.   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?
increase

Read the passage below and choose the right answer to the following question (choices are faster or slower ):  Warmer molecules vibrate faster than cooler ones.   Eric increased the heat of the molecules. They now vibrate faster or slower?
faster

Read the passage below and choose the right answer to the following question (choices are shorter. or longer ):  Longer length resistors will offer more resistance than shorter resistors.   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?
shorter.