At higher elevations, there is less air to press on a given area. When we get to the top of a mountain the air is more dense or less dense?
less dense

(Question)
The longer the resistor, the more resistance it has. If Jim makes his resistor shorter, the resistance is exhibits is smaller or greater?
(Answer)
smaller

Ques: As the distance between the objects increases the magnetic force of attraction decreases. Planets moving closer together will have less or more magnetic attraction?
Ans: more

(Q).
Gluons make quarks attract each other more strongly the farther apart the quarks get. When quarks are taken further apart, they experience minimal attraction, but when they're brought together, they have an attraction that is greater or smaller?
(A).
smaller

Ques:If salt is added to a volume of water, there are more molecules in the same volume, so the water is denser. When water loses salt the water becomes more dense or less dense?

Ans:less dense

Question: Electromagnetic waves with shorter wavelengths have higher frequencies and more energy. If Jim lengthens the wavelength of the electromagnetic waves his machine is producing, what happens to the energy output it increases or it decreases?
Answer:
it decreases