Which objects exert forces on each other without contact?
Objects that exert forces on each other without contact include:
1. Electric charges: Charged objects can exert forces on each other through electrostatic interactions. Like charges repel each other, while opposite charges attract.
2. Magnetic fields: Magnets can exert forces on each other without physical contact through magnetic fields. Like poles repel each other, while opposite poles attract.
3. Gravitational fields: Objects with mass exert gravitational forces on each other without contact. The force of gravity depends on the masses of the objects and the distance between them.
4. Electromagnetic radiation: Light and other forms of electromagnetic radiation can exert pressure on objects, causing them to move or exert forces on each other without direct contact.