concentration
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concentration
The ability or state of directing all of one's mental attention to a single thing or activity.
Bei dem Lärm fällt mir die Konzentration sehr schwer.
With all that noise, concentration is very difficult for me.
concentration
In chemistry and physics, the amount of a substance contained in a certain volume of a mixture or solution.
Die Konzentration von Zucker in diesem Getränk ist sehr hoch.
The concentration of sugar in this drink is very high.
concentration
A strong accumulation or clustering of people, things, or companies in one place.
In diesem Stadtteil gibt es eine hohe Konzentration von IT-Firmen.
There is a high concentration of IT companies in this district.
'Die Konzentration' (concentration) is the noun form of the verb 'sich konzentrieren' (to concentrate). Both use the preposition 'auf' with the accusative to name the target of attention.
Ich konzentriere mich auf meine Arbeit.
I concentrate on my work.
The context makes the meaning clear: in everyday life and learning, it is about mental attention. In scientific texts (chemistry, physics), it is about the amount of a substance. In business and sociology, it is about an accumulation.
Für diese Aufgabe brauchst du volle Konzentration.
You need full concentration for this task.
For mental attention, typical verbs are 'die Konzentration stören' (to disturb concentration), 'die Konzentration verlieren' (to lose concentration), 'die Konzentration fördern' (to promote concentration), or 'Konzentration brauchen' (to need concentration).
Laute Musik stört meine Konzentration beim Lesen.
Loud music disturbs my concentration while reading.
In the scientific meaning, the structure 'die Konzentration von [Stoff] in [Medium]' (the concentration of [substance] in [medium]) is often used. Typical adjectives are 'hoch' (high) and 'niedrig' (low).
Die Konzentration von Salz im Meerwasser ist hoch.
The concentration of salt in seawater is high.
attention
Aufmerksamkeit generally means directing your thoughts and senses toward something. Konzentration places greater emphasis on keeping your mental focus entirely on one thing. In class, you need attention for what is being said and concentration especially for longer or more difficult tasks.
Auch nach einer Stunde lösten die Schüler die Aufgaben mit voller Konzentration.
Even after an hour, the students were solving the exercises with complete concentration.
Zu Beginn der Stunde richteten die Schüler ihre Aufmerksamkeit auf die Lehrerin.
At the beginning of the lesson, the students directed their attention to the teacher.
