GLORIOUS GRAVITY

The hole is poked in the side of the cup. If you use a plastic cup,  an adult's help might be nedded because it'll be a bit trickier.
The hole is covered with your thumb and the cup is filled with water.
The cup is holded up high and the hole is uncovered. You'll see that the water gushes out steadily.
This is one reason why it's good to do this experiment in the garden!
What do you think would happen if you let go of the cup? Would the water flow faster or slower out of the cup? 
The cup is holded up high again and this time, let it drop!When you let go of the cup the water stops coming out of the hole. It stays put until it hits the ground. The reason for this is that gravity works differently in different conditions.

Andreas Loucaides - Kyriaki Papadamou

Friction experiment

This experiment is made for describing the fourth force that is important in engineering,called friction.The rail is placed on a downward position so we can check the friction between of it and the car.This can be calculated if we compare the weight force and the normal resistance that acts between the rail and the car.As a result we can see that the car has reduced speed because of the friction force which acts against the car movement.

Marios Panayiotou
Konstantinos Dimitriou

Gallileo's Experiment

Gallileo Gallilei prooved that mass is not a factor of the acceleration when objects move downwards.  It was prooved by Gallileo that the two objects will reach the ground at exactly the same time. But this will happen only in laboratory conditions, where air resistance does not exists. Two objects of a different mass are placed at a specific height.The first object of a heavier mass is let to fall. Then the second of lighter mass is let to fall. For both objects time is counted from the moment let to fall till they reach the ground. The time will prooved to be the same for both objects.



Aristotelis Agisilaou, Giorgos Mesaritis, Christodoulos Menelaou

Mapping A Magnetic Field

A magnet is placed in the middle of a large piece of paper and its position is marked. The compass is put near the magnet. A short arrow is drawn next to the compass, which is shown the direction the needle is pointing. The compass is moved to another position. Another arrow is drawn in order to show the direction of the needle. The compass is marked and short arrows are drawn in about 20 places around the magnet. Curved lines are showed by the arrows that ran from the north pole of the magnet to the south pole. The lines are drawn close together near the poles, where the magnetism is strongest. Away from the poles, where the magnetism is weaker, the lines are drawn further apart.


Markos Kleanthous
Xanthi Apostolou

3rd Law of Newton

A force is applied to the wall by a person. Another force which is equal, opposite and collinear is exerted on the person. 

Solomos Orfanos
George Papaioannou

The direction of the magnetic lines

A magnetization is placed under a piece of paper. An amount of iron filings is dropped above the paper. Then, the iron filings are attracted by the polars of the magnetization and the magnetic lines are created.  Finally, we observe that the direction of the magnetic lines depends from the polarity of the magnetization. The lines are directed from the north pole, to the south one.





Dora Xenofontos
Maria Pantelide
Marina Efstratiou

Hook's Law

A stand of steel is placed on a flat surface.  A spring is hung on the stand.  Different weights are attached at the edge of the spring.  The elongation is measured and recorded each of the time different weights are applied.  According to formula of Hook law, the steadily of the spring is calculated.  The steadily is equal to the quotient of Force to elongation.


                                                                                                        Minas Mappouras - Nikos Paraskeva