Question

a. magnetic force acts between two objects that are not touching.
b. magnetic force is a form of gravity.
c. magnetic force acts between any two objects with mass.
d. magnetic force can only attract objects.

Explanation:

• Option A: Magnetic force can act between objects that are not touching. For example, magnets can attract or repel each other without physical contact.
• Option B: Magnetic force is not a form of gravity. Gravity is related to mass and has a different nature and formula compared to magnetic force.
• Option C: Magnetic force does not act between any two objects with mass. It acts between magnetic materials or moving charges (in the case of electromagnetism).
• Option D: Magnetic force can both attract and repel objects. Opposite poles attract and like poles repel.

Answer:

A. Magnetic force acts between two objects that are not touching.