Non-contact forces
The push or pull acting between objects that are not physically touching when they interact. are A push or a pull. The unit of force is the newton (N). that act between two objects that are not physically touching each other. Examples of non-contact forces include:
Magnetic force
A magnetic force is experienced by any Able to be magnetised or attracted to a magnet. material in a Area surrounding a magnet that can exert a force on magnetic materials..
Opposite magnetic poles (N鈥揝 or S鈥揘) Objects that tend to move together because of a force between them attract each other. each other. Like magnetic poles (N鈥揘 or S鈥揝) Objects that tend to push apart because of a force between them repel each other. each other:
Electrostatic force
An A force of attraction between particles with opposite charges. is experienced by any Particles, usually ions or electrons, that carry electrical charges. in an Area surrounding an electric charge that may influence other charged particles..
Opposite charges (+ and 鈥) attract:
Like charges (鈥 and 鈥, or + and +) repel:
Gravitational force
A gravitational force is experienced by any The amount of matter an object contains. Mass is measured in kilograms (kg) or grams (g). in a gravitational field.
Masses are attracted towards each other by gravitational force: