Which statement correctly describes the differences between positive and negative acceleration? a) Positive acceleration describes a change in speed; negative acceleration describes no change in speed.

b) Positive acceleration describes no change in speed; negative acceleration describes a change in speed.

c) Positive acceleration describes an increase in speed; negative acceleration describes a decrease in speed.

d) Positive acceleration describes a decrease in speed; negative acceleration describes an increase in speed.

c) Positive acceleration describes an increase in speed; negative acceleration describes a decrease in speed.

Hey

On Earth, you can move or you can not move. if you are moving 50 mph that means relative to Earth (not the Andromeda galaxy). When you start moving (accelerating) you are now moving relative to Earth. when you start slowing down (decelerating [most scientists just say you have negative acceleration]) you are starting to match your velocity to Earth's velocity.

Hope it helped and made any sence at all.

Spiky bob your answerer.

molecules are free to separate from each other and will take on the shape of the container. molecules move completely at random and high speeds. they vibrate in a fixed position and do not move around much. molecules expand to the edge of their container.