Each student will sooner or later get acquainted with the natural sciences, such as:
- biology;
- chemistry;
- physics;
- ecology.
But in this article we will only talk about such a subject as physics. What class does it begin with, what do they study, what should they prepare for? We will discuss all this below.
What is this subject?
Physics is the science of nature. All textbooks and teachers talk about this. But in fact, the definition is much longer, because this science studies almost all the laws that occur in the environment.
Students will learn why any body falls to the ground, how water turns into ice, what various quantities are measured in (for example, atmospheric pressure, power and current) and so on. Physics (Grade 7) involves the study of many phenomena both in nature and in everyday life.
What topics are taught in grade 7?
First, students will be introduced to science itself, briefly talk about what it is. A good teacher will show either experiences or interesting posters. You need to have an idea of what physics is. What class begins the study of the mechanics and structure of substances? It is from the 7th, as these topics are the simplest and most accessible for understanding.
Imagine that you move every day in transport or on foot, people go by. Another example: boiling water, brewing tea with sugar. In physics lessons, the teacher will tell you how these or those processes occur.
How to arouse interest?
Any topic is connected with real life. Since ancient times, people seek to know the world, to understand how certain phenomena occur. It is possible that you sometimes or often ask questions, for example, about how birds and planes fly, why everything falls down, how electric current exists and why a magnet attracts everything iron or steel to itself. Physics will answer all these questions. What class does the study of, for example, electricity begin with? And the sound? Remember that this subject starts from grade 7, and ends with graduation (in grade 11). Therefore, all sections will be reviewed over 5 years gradually. At the very beginning, the most elementary is studied. The main thing is to try to learn definitions with an understanding of the meaning, it will be easier to remember. Let's give an example.
The trajectory is the line along which the body moves.
What are we talking about? Let's start by remembering that in any science there are terms that characterize something. You first heard the word "trajectory", maybe as a child from adults. But they did not know what it was. Imagine going to school on a snowy path in winter. Traces remain after you. Imagine a top view. Footprints describe your trajectory as you move from home to school. There is a phrase, for example: an asteroid changed its trajectory. What does it mean? He moved in one direction, say from Mars to Jupiter, and then turned to the side.
About the structure of matter
You will get acquainted with the concept of "molecule", which will be found in chemistry and biology. This is a very, very small substance that can only be seen under a powerful microscope. In the physics office there are posters showing the molecular structures of various substances (for example, water, metal).
For the first time, students will have to get acquainted with the laboratory work that physics requires. What class does study, research on a particular topic of the lesson begin with? It is from the 7th. Be sure to listen to the teacher, write down what necessary tools and accessories to bring to the next lesson.
Body interaction
You have to study how bodies interact with each other. You will learn many new terms, as well as Newton’s three laws that explain how certain phenomena occur. Suppose in a billiard ball hit one another, both rolled away. Why did this happen? This is what physics will explain at school.
In addition to definitions (terms), you need to study units of measure, formulas. It is very important to know mathematics well, so that when solving problems there will be no difficulties.
Pressure of liquids, gases and solids
Interesting and useful topics will be in the study of this section: atmospheric pressure, navigation of ships and much more. Despite the complexity, the large amount of information, it will be interesting to know why the ships do not sink.
Physics (Grade 7) offers to study only what we see every day. Try to pay attention to everything around. For example, see the weather forecast. They will definitely say what temperature is expected in the coming days, whether there will be precipitation, wind, and also inform what will be the atmospheric pressure and wind strength.
Work, power, energy
This section will talk about what is happening among us, but we do not see it. What does physics study in this case? What class begins the study of work, power, energy? Also from grade 7. Let's get a look. For example, a baby carries a sled along a path. What's happening? Work in progress. The kid spends his energy, especially if the sled is heavy. Power also makes sense here, because it can evaluate how a child will cope with his task.
Be sure to study each definition with real examples, figures, diagrams. Remember formulas and designations of those and other parameters. You will need them for further study of the subject.
So you and I have figured out which class they are studying physics with, which we have to get to know. Much depends on you now: in order for a subject to be given successfully, you need to start to be interested, apply what you have learned in real life.