The one word that completes the sentence "As the speed of an object increases, the _________ energy of the object increases" is kinetic.
Explanation
- The energy of a moving object that increases as its speed increases is called kinetic energy. Kinetic energy depends on both the mass of the object and the square of its speed.
- Mathematically, kinetic energy EkE_kEk is given by Ek=12mv2E_k=\frac{1}{2}mv^2Ek=21mv2, where mmm is the mass and vvv is the speed of the object.
- Thus, as speed increases, the kinetic energy increases significantly, since it is proportional to the square of the speed.