Question 24

Gravitational force produced by black holes attracts the millions of stars in each galaxy.

The gravitational force generated by massive black holes at the centers of galaxies is what attracts the millions of stars within those galaxies.

A) Frictional

Frictional force refers to the resistance that one surface or object encounters when moving over another. This force does not play a significant role in the attraction of stars within galaxies and is not relevant to the influence of black holes.

B) Magnetic

Magnetic forces arise from magnetic fields and are associated with charged particles. While magnetic fields can influence certain cosmic phenomena, they do not primarily account for the attraction of stars in galaxies, especially not in relation to black holes.

C) Gravitational

Gravitational force is the correct answer as it is the fundamental force that governs the attraction between masses. The immense mass of black holes creates a strong gravitational pull that draws stars and other matter towards them, shaping the dynamics of entire galaxies.

D) Electrical

Electrical forces occur between charged particles and do not have a significant effect on the attraction of stars within galaxies. Black holes, being massive entities, operate primarily under gravitational influence rather than electrical forces.

Conclusion

Gravitational force is the dominant force responsible for attracting stars in galaxies due to the presence of massive black holes. Other forces, such as frictional, magnetic, and electrical, do not contribute significantly to this attraction and fail to explain the structural dynamics observed in galaxies. Thus, option C is the only correct choice that accurately describes the interaction between black holes and the stars they attract.