What are 3 examples of non contact forces?

1. Gravitational force: This force is exerted by all objects with mass and acts over a distance without the need for direct physical contact.

2. Magnetic force: This force is exerted by magnets and magnetic materials and acts over a distance without the need for direct physical contact.

3. Electrostatic force: This force is exerted by electrically charged objects and acts over a distance without the need for direct physical contact.