Last Updated: 25 March 2026Verified for JEE 2026
PhysicsJEE & NEET
Difference Between Kinetic Energy and Potential Energy
Kinetic energy is the energy of motion, while potential energy is stored energy due to position or configuration. Together, they form mechanical energy.
Kinetic Energy vs Potential Energy — Comparison Table
| Aspect | Kinetic Energy | Potential Energy |
|---|---|---|
| Definition | Energy due to motion | Energy due to position/configuration |
| Formula | KE = ½mv² | PE = mgh (gravitational) |
| Depends on | Mass and velocity | Mass, height, or configuration |
| Zero when | Object is at rest | At reference level |
| Always positive? | Yes | No (can be negative) |
| Transfer | Decreases when object decelerates | Converts to KE when released |
Key Points to Remember
In free fall, PE converts to KE (total energy conserved)
At the highest point of a projectile, KE is minimum and PE is maximum
Spring PE = ½kx² (elastic potential energy)
Total mechanical energy = KE + PE = constant (in absence of non-conservative forces)
Master Physics with 1-on-1 Coaching
Struggling with concepts like kinetic energy vs potential energy? Get a dedicated mentor who explains until you truly understand.