Gen Physics 1

• Gravitational field is a region where a mass experiences a force due to an attractive force or gravitational attraction.
• The gravitational attraction between two masses can be imagined either as an (a) action-at-a distance force or a (b) field force.
• when imagined as an action-at-a distance force, the objects act directly on each other instantly and without direct contact.
• Action-at-a distance forces exert a push or pull (interact) without physical contact
• When imagined as a field force, the presence of a mass somehow changes the space surrounding it and when another mass occupies the space nearby, an attraction occurs.
• Gravity – when you jump off the ground, there is still a gravitational pull between you and the earth.