Energy of motion is:

**The reasoning** Energy of motion is called **kinetic energy (KE)**. This is the energy an object possesses simply because it's moving. Whether it's a ball rolling, a car driving, or even you running to catch a bus — that's all kinetic energy in action. The formula is: KE = ½mv², where m is mass and v is velocity. Notice how velocity appears in the formula? That's because the faster something moves, the more kinetic energy it has. A stationary object has zero KE because v = 0. **Why the wrong options tempt you** - **PE (Potential Energy)** is energy of *position*, not motion — like water stored high up in a tank - **Heat** is a *form* of energy transfer, not specifically energy of motion (though molecules do vibrate!) - **Sound** is also energy, but it's specifically energy traveling as vibrations through air or materials The trap is mixing up different energy types. They're all energy, but only KE directly describes motion. **Quick takeaway** Think: **K**inetic = **K**icking a ball — anything moving has KE!