(i) A non-contact force is the one which acts on a body without any physical contact. An example of the same is gravitational force. It is always attractive in nature.
Which non contact force can only ever be attractive?
Unlike the other two fields, which can involve both attraction and repulsion, gravity only acts by attraction.
Which force is only an attractive force?
We all know that all the forces in nature exist in opposites, but gravitational force is the only force that always attracts every object and never reples any.
Is electric force only attractive?
Second, gravitational forces are only attractive; electrical forces can be either attractive or repulsive.
Which forces are non-contact forces?
Answer. The three types of non-contact forces are gravitational force, magnetic force, electrostatic and nuclear force.
Which has the least force of attraction?
The state of matter with the least intermolecular forces of attraction is the gaseous state.
Is gravitational force only attractive?
Gravity is not always attractive: Gravity is thought of as a weak boring force. But if you get fast spinning black holes and strong gravitational waves interacting, then you can get ‘repulsion and attraction’ effects happening out of purely gravitational forces.
What are the 3 attractive forces?
There are three types of intermolecular forces: London dispersion forces (LDF), dipole- dipole interactions, and hydrogen bonding. Molecules can have any mix of these three kinds of intermolecular forces, but all substances at least have LDF.
Is magnetic force contact force?
Magnetic forces are non contact forces; they pull or push on objects without touching them.
Which is not a non-contact force?
Therefore, clearly from the above discussion we can see that magnetic force, electrostatic force and gravitational force are all three non-contact forces. The only left force is muscular force. This means that muscular force is not a non-contact force.
Is buoyancy a contact force?
-buoyancy is a force that we identify with boats and other sea vessels. … This force acts upwards opposing the force of gravity. Hot air balloons rise due to buoyancy. Non-contact forces include gravity, magnetic and electrostatic.
What are the 5 examples of non-contact forces?
Difference between Contact and Non-Contact force
In acts when there is no physical contact in objects. Muscular force,frictional force,spring force,normal force,tension force are few examples. Gravitational force,electrostatic force,magnetic force and electrochemical force are few examples.