If I let the gravitational potential energy at an infinite distance be zero Joules, then: Yes, the gravitational potential energy in this way would always be negative. Don't worry.

"Quadratic gravity is a renormalizable quantum field theory which is a potential candidate to describe gravity on all scales," John Donoghue, co-author of the paper, told Phys.org.

Energy in the gravitational potential energy store (Ep) = mass (m) x gravitational field strength (g) x height (h) ... Calculate the amount of energy in their kinetic energy store.

Physics in Motion. Segment 4E: Gravitational Potential and Kinetic Energy. 7/24/2018 | 5m 14s Video has Closed Captions | CC. We define and explain mathematically through multiple example problems.