Difference Between Force and Pressure, Types, Examples

Difference Between Force and Pressure:  Force and Pressure are two basic concepts in physics. Let us understand the Difference Between Force and Pressure . Both are different entities, and there are vast variances among them.

Difference Between Force and Pressure Overview

Difference Between Force and Pressure

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Force vs Pressure

What is Force?

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Types of Force

Contact Force

• Muscular Force – The functions of muscles create a force in our daily life, like lifting a bucket or pushing or pulling an object. This force exists only when it comes in contact with an object.
• Frictional Force - the frictional force acts on all moving objects. It mainly works when the objects are moving in the opposite direction of the motion.

Non-contact Force

• Magnetic Force : Magnet as you attract metal objects; the force attracting certain metal objects is termed Magnetic force.
• Electrostatic Force : Force exerted by a fully charged object onto another fully charged/ uncharged object is known as Electrostatic force.
• Gravitational Force : Gravity is very well known to us. The force with which any object falls towards the earth due to the pull is known as Gravitational force.

F = ma

Here

F - represents Force

m – represents the Mass of the object;

a – represents acceleration.

Force is expressed in Newtons (N) or kilogram per second (kgm/s2)

Examples of Force

• Tug of war – two teams pulling the rope exerts force.
• Bullock pulling the cart – the bullock pulls the cart using force.
• We apply a pull while opening the door.
• Force is used when we push the earth with a bulldozer.
• When we stretch the spring of the chest expander, it exerts force.
• We exert force while we insert a pin on the notice board.
• When we pedal a cycle, it is force.
• Squeezing out water from wet clothes is another example of using force.
• Towing a shopping cart when you go to a mall.

What is Pressure?

P = F/A

Here,

P – represents Pressure;

F – represents Force and

A – represents Area (this Area is the surface area).

Since Pressure is a scalar quantity, it has only magnitude and no direction.

Pressure is expressed in Pascal (Pa).

Types of Pressure

1. Absolute Pressure – A total vacuum inside a place or a Pressure without any matter is known as absolute Pressure.
2. Differential Pressure – The measurement of elevation of any fluid in any device is called differential Pressure.
3. Gauge Pressure – Any Pressure calculated based on atmospheric pressure is known as gauge pressure.
4. Atmospheric Pressure – The weight of the air above a specific surface exerts the force per unit area; this Pressure is exerted against a particular surface. It is called atmospheric Pressure.

Examples of Pressure

• The knife’s edge is small, but it creates enough Pressure to cut your vegetables and fruits.
• You would have instances where you have given blood; in such cases, the Pressure of the blood flows into the syringe when the plunger is withdrawn.
• While you have any beverage, you generally suck it with the help of a straw; this is a classic example of Pressure.
• The Skis do not sink in the snow due to Pressure.
• While using a vacuum cleaner, you can notice that the machine sucks the dirt particles. It is because of the low pressure created in the machine.