NASA is testing identical miniature rockets using the same platform. Which of these describes the relationship between the rocket’s speed and its kinetic energy?

B. As the speed of the rockets increase, their kinetic energy increases.

Explanation:

The line graph above slopes upward from left to your right. This implies that as the variable on the x-axis (speed) increases, the kinetic energy also increases in the same direction. Thus, kinetic energy increases with the speed of the rocket.

However, this is not a constant relationship as the line curves. A constant relationship would have a straight line graph.

Therefore the best statement that describes the relationship represented on the graph is:

"B. As the speed of the rockets increase, their kinetic energy increases."