Most people, recalling his high school years, believe that physics - this is a very boring subject.The course includes a number of problems and formulas that no one in the next life is not useful.On the one hand, these statements are true, but, like any piece of physics has another side of the coin.Only its not everyone discovers.
A lot depends on the teacher
probably to blame our education system, and maybe the whole thing in a teacher who thinks only of what you need to chastise approved over the material, and does not seek to interest their students.The most common fault is it.However, if the children are lucky, and the lesson they will have to conduct a teacher, who himself loves his subject, he will not only be interested in the students, but also help them to discover something new.That will result in the fact that children will be happy to attend such classes.Of course, the formula are an integral part of the academic subject, there's no getting around it.But there are positive aspects.Of particular interest to students cause experiments.That's what we'll talk in more detail.We look at some of the interesting experiments in physics that you can spend with your child.This should be interesting not only to him but also to you.It is likely that with these lessons to the child you plant a genuine interest in learning, and a favorite subject for him would be "boring" physics.Experiments carried out at home is a snap, it will take quite a bit of attributes, the main thing that was a desire.And maybe then you will be able to replace your child a school teacher.
consider some interesting experiments in Physics for young because you should start small.
Paper fish
To conduct this experiment, we need to cut out of construction paper (cardboard can be) a small fish, the length of which should amount to 30-50 mm.Make a round hole in the middle of a diameter of about 10-15 mm.Further, from the tail cut through a narrow channel (width 3-4 mm) to the round holes.Then pour the water into a bowl and gently put back our fish so that one plane was on the water, and the second - remained dry.Now, in a round hole to drip oil (you can use the oil can on a sewing machine or a bicycle).Oil spill on the surface trying to water flow through the cut channels, and under the influence of fish oil flowing back float forward.
Elephant and the Pug
continue to carry out entertaining experiments in physics with your child.We invite you to introduce your baby to the concept of leverage and how it helps facilitate the work of man.For example, tell us that using it can easily lift heavy cabinet or sofa.And to demonstrate the physics of elementary experience with the use of leverage.For this we need a ruler, a pencil and a couple of small toys, but definitely different weights (which is why we have called this experience "Elephant and Pug").We fasten our Elephant and Moska on different ends of the line using plasticine, double-sided tape or regular thread (just tie toys).Now, if you put a line on the middle part of the pencil, it would chip, of course, the elephant, because it is heavier.But if you move the pencil towards the elephant, it is easily outweighed his pug.That this is the principle of the lever.The line (lever) is based on a pencil - this place is the fulcrum.Next, the child should be told that this principle is used everywhere, he laid the foundation of the crane, swing and even scissors.
home experience in physics inertia
We need a jar of water and economic grid.It's not a secret that when flipped open jar, the water will pour out of it.Let's try?Of course, it is better to go out.We put the jar in the net and start rocking her gently, gradually increasing the amplitude, and as a result make a complete revolution - one, two, three and so on.Water does not come out.Interesting?And now, make water pour up.To do this, take a tin can and will do in the bottom of the hole.We put in a grid, fill with water and begin to rotate.From the opening spurt.When a bank in the lower position, it does not surprise anyone, but when it flies up, and the fountain continues to beat in the same direction, and from the neck - a drop.That's it.All this may explain the principle of inertia.When you rotate the Bank aims to fly straight and not let the grid and makes it describe a circle.The water also tends to fly out of inertia, and when we make a hole in the bottom of, she had nothing prevents escape and move in a straight line.
boxes surprise
now consider the experiments in physics with an offset center of mass.We need to put a matchbox on the table and slowly move it.At that moment, when he held his average mark, there will be a fall.That is the mass extended over the edge of the countertop to exceed the weight of the remainder, and boxes capsize.Now we shift the center of mass, for example, put in (as close as possible to the edge) metal nut.Remaining boxes placed so that a small part of it remains on the table, and most was in the air.Falls will not happen.The essence of this experiment will conclude that all the mass is located above the pivot point.This principle is also used throughout.It is thanks to him in a stable position are furniture, monuments, transportation, cranes and more.By the way, a child's toy Roly-Poly is also built on the principle of shifting the center of mass.
So continue to look interesting experiments in physics, but move on to the next stage - to sixth grade students.
Water carousel
We need an empty tin can, hammer, nails, rope.Punched with nails and a hammer in the side wall near the bottom of the hole.Further, without pulling a nail out of the hole, turn down his side.It is necessary that the hole has turned oblique.Repeat the procedure with the second side of the banks - do you need so that the holes are turned against each other, but the nails were bent in different directions.In the upper portion of the container break through two holes in them threaded ends of the rope or thick yarn.We hung container and fill it with water.Because of the lower holes will beat two oblique fountain, and the bank will begin to rotate in the opposite direction.On this principle work space rockets - the flame from the nozzles of the engine beats in one direction, and the rocket flies to another.
Experiments in Physics - Grade 7
carry out the experiment with a density of mass and learn how to make an egg float.Experiments in physics with different densities is best carried out by the example of fresh and salt water.Take jar filled with hot water.Immerse the egg and it will sink immediately.Next, pour in the water table salt and stir.The egg begins to emerge, and the more salt, the higher it rises.This is due to the fact that salt water has a higher density than fresh water.So, we all know that in the Dead Sea (its water is very salty) is almost impossible to sink.As you can see, experiments in physics can significantly increase your child's horizons.
Balloon and plastic bottle
seventh grade pupils are beginning to study the atmospheric pressure and its impact on the objects around us.To expand this topic more deeply, it is better to conduct appropriate experiments in physics.The atmospheric pressure has an effect on us, though, and remains invisible.Here is an example with a balloon.Each of us can inflate it.Then we put it in a plastic bottle, will put on the edge of the neck and fix.Thus, air can only flow into the bowl, and the bottle will be sealed vessel.Now we will try to inflate the ball.We do not succeed, as the atmospheric pressure in the bottle will not let us do that.When we are when the wind blows, the ball begins to displace the air in the vessel.And as we have sealed the bottle, he has nowhere to go, and it begins to shrink, thus becomes much more dense air into the balloon.Accordingly, the system is leveled, and the ball can not inflate.Now, make a hole in the bottom of the ball and try to cheat.In this case, there is no resistance, displace the air leaves the bottle - atmospheric pressure equalized.
Conclusion As you can see, experiments in physics is not complex and quite interesting.Try to interest your child - and study for it will be very different, it will be happy to attend classes, which eventually will have an impact on its performance.
