Which of the following terms relate to the meaning of "physical"

According to newton’s first law of motion, which force is expected to cause a body to accelerate?

What is the rate of change in a objects position?

Although longitudinal waves can travel through all media types what is the disadvantage of this type of wave transmission? a) he efficiency of he wave transmission is greatly diminished as the media becomes less dense b) the oscillation of one set of particles has a huge impact on neighboring particles c) particles become too close together as they bump into each other making it more likely to hit other particles down the line