Answer: kinetic energy
Step-by-step explanation:
Kinetic energy is the form of energy related to the motion of an object. The kinetic energy of an object is given by:
![K=(1)/(2)mv^2](https://img.qammunity.org/2019/formulas/physics/high-school/mk8a2yuimvb3fsczf8xfus8mcmo016aig4.png)
where m is the mass of the object and v its speed. Therefore, any object in motion has kinetic energy: in this case, the bowling ball is in motion before the collision, so during the collision it transfers its kinetic energy to the pins.