Warm Welcome!

Have you ever wondered what force a spring inside a pen has in terms of Hooks's Law? 

Today, Mr Jegorovas asked all of us to describe Hooke's Law and the weight dependent on the spring's extension or compression. 

Hooke's Law: F = K x e

*F is the force in newtons, n

*k is the 'spring constant' in newtons per metre, N/m

*e is the extension in metres, m

The Image above shows a pen with a spring. The spring will push the ball point with the same force applied as to the plunger of the pen to the spring. The spring will compress due to the force applied to the plunger. Hooke's Law works as long as the spring's limit not exceeded. This is sometimes known as the proportionality. 
The force applied to the spring will exert the ball point out. The graph of force extension shows a straight line (or a best fit if estimated) on the image. The gradient of the line is the spring's constant, K. The stiffer the spring the more constant the spring should be.

More: Hooke's Law defined in detail     (hooke's law)

Hello.

Today in Monoux, my physics teacher asked all of us to create a blogger account and write how density and volume work together as a whole. Therefore, I'm going to take a football pitch as a model and describe how all the density and volume work together as a whole. 

Players = Density
Football Pitch = Volume 

As the density increase (Football players) the volume ( football pitch) would also increase. As each player get closer to each other, the atoms of each player also get together. This would result the mass to increase. the Volume of the football pitch would increase.

To decrease the density, each player(atom) should spread across the football pitch.

To increase the density as well as the volume, more football players should gather together in a big football pitch than the last one. 




To make the density 0, either the mass or volume should be 0. All the football players should get off the football pitch. This would make the density 0. 

(I hope all these ain't nonsense to my Physics Teacher MR. Je.... something) -sorry