(a) List the four fundamental forces of nature in the descending order of their…
PHYSICS · Subjective · A Level · Physics · Particles and radiation · Particles and radiation
Problem
(a) List the four fundamental forces of nature in the descending order of their relative strength as measured at a separation of 1.0×10−15m.
(b) State the typical range associated with each of the four forces.
(c) Protons inside an atomic nucleus experience both the electrostatic force of repulsion and an attractive force. Explain why the attractive force dominates even though the charge on each proton is large.
(d) Gravity governs the large-scale motion of planets and galaxies but is almost always ignored in atomic physics. Give two clear reasons, based on strength and range, that justify this practice.