Physics - Particle Physics - Fundamental forces and interactions - Fundamental Forces Quiz

Categorize these phenomena/properties by which fundamental force is primarily responsible: STRONG, ELECTROMAGNETIC, WEAK, or GRAVITY. Items: 'Holds quarks inside protons' (Strong), 'Chemical bonding' (EM), 'Beta decay of neutron' (Weak), 'Planetary orbits' (Gravity), 'Holds atomic nuclei together' (