Ques: When the heart expels more blood with each stroke, the heart has to beat less often in order to maintain the same volume of blood flow.  Jon was jogging, and quickening his pace. His heart is beating more or less?
Ans: more

Ques: Objects with greater mass have a stronger force of gravity between them.  Jupiter and Saturn are much larger in mass than Earth and Venus, therefore the force of gravity between Jupiter and Saturn is greater or lesser than the force of gravity between Earth and Venus?
Ans: greater

Ques: Exhaling, or breathing out, decreases the size of the chest, which increases air pressure inside the lungs.  When people breathe in their chest becomes larger or smaller?
Ans: larger

Ques: The particles in matter are always moving. The more energy they have, the faster they move.  If there are two containers of particles, the one that has the least energy will move slower. or faster?
Ans:
slower.