Ques: Shorter wavelengths (higher frequencies) correspond to higher energies and thus hotter star temperatures.  Don is sending out wavelengths, and wants them to correspond to lower energies. In order to best do this, Don will send out wavelengths that are longer or shorter?
Ans: longer

Ques: Less massive objects also have less gravity than more massive objects.  Dan's small globe will have this kind of gravity compared to his larger globe: more or less?
Ans: less

Ques: 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?
Ans: increased

Ques: More particles inside the container means more collisions, and more collisions mean a higher pressure.  If we keep deflating a balloon of oxygen particles what happens to the pressure increases or decreases?
Ans:
decreases