Question

Define the following terms & give their units
[i] work
[ii] pressure
[iii] buoyant force ​

Answer 1

(1)J is the unit of work

(2)Pascal's is the unit of pressure

(3)Newton is the unit of buoyant force

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Answer 2

Work:-

Imagine, you are sitting with a laptop and working pressing different keys is that a work it may not be called work according to physicist. According to physics what is said to be done when a force acts on an object and object is displaced from its position if the object does not move there is no work done.

For example:- when we try to push a table and it moves work is done but if we try to push a wall and the world doesn't move work is not done.

The Standard unit of work is Joule (J)

Pressure:-

Pressure is the force per unit area acting in a direction perpendicular to the surface of contact.

The standard unit of pressure is Newton per square metre.

Buoyant force:-

An upward force exerted by a fluid.

The standard unit of buoyant force is Newton (N)

Hope it's help you dear.

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