(Q).
The more cylinders a car engine has, the more powerful its engine can be.  Having read the above passage, choose the right answer to the following question (choices are increased or decreased ):   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.  Having read the above passage, choose the right answer to the following question (choices are more or less ):   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.  Having read the above passage, choose the right answer to the following question (choices are speed up or slow down ):   When it is very warm what happens to the speed of items speed up or slow down?
(A).
speed up