Physics: Understanding Force Characteristics

<p>Magnetism is a non-contact force. (B)</p> Signup and view all the answers

<p>They require interaction between objects. (A)</p> Signup and view all the answers

<p>An external agent capable of changing a body’s state of rest or motion (B)</p> Signup and view all the answers

<p>Newton (B)</p> Signup and view all the answers

<p>Force can change the shape and size of a body (C)</p> Signup and view all the answers

<p>F = ma (B)</p> Signup and view all the answers

<p>Mass of a body (B)</p> Signup and view all the answers

<p>Stretch (C)</p> Signup and view all the answers

<p>a = F/m (C)</p> Signup and view all the answers

A push or pull on an object that can change its state of motion or size.

Force can make a stationary object move, stop a moving object, accelerate an object, or change its direction and shape.

Force (F) equals mass (m) times acceleration (a), F = ma

Newton (N)

Force can cause a change in an object's position or movement (motion).

Rate of change of velocity.

Mass x velocity, p = mv

Force is the rate of change of momentum.

A force that requires direct physical contact between two objects to act upon each other.

A force that can act upon an object without any physical touching between two objects. Gravitational force and Magnetic force are examples of non-contact forces.

Forces are broadly classified into two categories based on the need for object interaction: Contact Force & Non-Contact Force.

A direct force like pushing a wall, where force is applied through physical contact and exerted on the wall, by force, to a certain extent.

A force like magnets' attraction or gravity's pull, where no physical contact is needed to exert a force on an object.