(Q).
The more cylinders a car engine has, the more powerful its engine can be.  Mona is designing a car in a factory. If she decides to add more cylinders to the car's engine, what happens to the power that engine can output increased or decreased?
(A).
increased


(Q).
The more rope segments on a pully that are helping to do the lifting work, the less force that is needed for the job.  Bob decreased the rope segments on his pully; this means he will need to use more or less force on it?
(A).
more


(Q).
For a given medium, sound waves travel more slowly at lower temperatures.  When it is very warm what happens to the speed of items speed up or slow down?
(A).
speed up