Vectors in physics

These are quantities in physics

• So-called quantitatively determinable properties are called quantities. This means nothing more than that the property can be described with a numerical value.
• Non-directional quantities are mass and temperature. For example, two objects have the same mass if the numerical value and the unit of mass are identical. If two objects have a mass of 1 kg, the property mass is identical. If you add both masses, you get 2 kg, because you only need to add the numerical values.
• In the case of directed quantities, i.e. vectors, the identity is only given if the direction is also identical. Assuming two objects exert a force of 10 N, they do not have to exert the same force. If, for example, one object exerts this force vertically downwards and the other vertically upwards, then the addition of the forces would lead to a resulting force of 0 N. In order to grasp these relationships, you need vectors.
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Vectors in geometry and physics

• In the geometry a vector is understood to mean an object that describes a parallel displacement. It is shown as an arrow. A vector is determined by its length, i.e. its amount, its beginning and the direction. In this sense the vector is also in the physics Are defined.
• A vector can be made with scalars, i.e. undirected Counting, be multiplied. This changes the amount, but not the direction. This also has its validity in physics and geometry. When a vector is multiplied by -1, its direction changes 180 degrees.


What are vectors?

Vectors are an area of ​​mathematics and important tools in physics. What about ...

• Vectors can also be added. The amount and direction are taken into account. In addition, the beginning of a vector is placed on the end of another vector. The result is a vector that goes from the beginning of the composite vector to its end. This calculation is of great importance in physics when adding forces.