An increase in predators, the emergence of a new disease, or the loss of habitat are just three possible problems that will decrease a population.  What happens to the size of a population if the number of predators for that population is increased gets bigger or gets smaller?
gets smaller

An object with greater mass or greater velocity has more kinetic energy.  John was watching the particle accelerator and made an observation. The greater an objects mass and velocity, the kinetic energy was Greater or Less?
Greater

As the distance between the objects increases the magnetic force of attraction decreases.  When you hold two magnets far away what is the force between them Strong or Weak?
Weak