Classify the following as contact or non. contact forces :

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Solution

Contact force is the force which exists when the bodies are in contact.

Here frictional force exist when two surfaces touch each other and moving in opposite direction.

Tension exist when a body hangs from a point with the help of either string or thread or anything. The same with normal reaction where as gravitational force exist even though bodies are not in contact but it is a short range force and a bit weak force.

Electrostatic force is a wide range force and same with magnetic force.Hence a,b,c are contact forces where as d,e,f are not contact forces.

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Similar questions

Classify the following amongst the contact and non-contact forces:

i) frictional force,

ii) normal reaction force

iii) force of tension in a string,

iv) gravitational force

Classify the following amongst contact and non-contact forces:
(a) frictional force,
(b) Normal reaction
(c) force of tension in a string,
(d) gravitational force,
(e) electrostatic force,
(f) magnetic force.

Which of the following can be classified as a contact force?

Q. Is friction a contact or a non-contact force?

Q. Which of the following is true about non-contact forces?
i. Non-contact forces can act only when the two bodies are in contact with each other.
ii. Non-contact forces can act only when the two bodies are not in contact with each other.
iii. Non-contact forces can act when the bodies are in contact with each other.
iv. Non-contact forces can act when the bodies are not in contact with each other.

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