Answer:
Visible Light Absorption
Atoms and molecules contain electrons. It is often useful to think of these electrons as being attached to the atoms by springs. The electrons and their attached springs have a tendency to vibrate at specific frequencies. Similar to a tuning fork or even a musical instrument, the electrons of atoms have a natural frequency at which they tend to vibrate. When a light wave with that same natural frequency impinges upon an atom, then the electrons of that atom will be set into vibrational motion. (This is merely another example of the resonance principle introduced in Unit 11 of The Physics Classroom Tutorial.) If a light wave of a given frequency strikes a material with electrons having the same vibrational frequencies, then those electrons will absorb the energy of the light wave and transform it into vibrational motion. During its vibration, the electrons interact with neighboring atoms in such a manner as to convert its vibrational energy into thermal energy. Subsequently, the light wave with that given frequency is absorbed by the object, never again to be released in the form of light. So the selective absorption of light by a particular material occurs because the selected frequency of the light wave matches the frequency at which electrons in the atoms of that material vibrate. Since different atoms and molecules have different natural frequencies of vibration, they will selectively absorb different frequencies of visible light.
Answer:
You’ll Burn Calories
Most concerts involve a lot of standing, jumping and dancing which can help you to burn calories that you would otherwise hold onto.
Raise Your Spirits
Everyone can use a little extra boost to his or her spirits during the day. Attending a concert is typically a fun activity, and it can help to boost your emotions throughout the entire day.
Get Involved
You don’t have to go to a large venue to experience the fun of a live concert: many communities offer live music as a way for people to socialize and visit in a safe setting. Local bands may play live in parks or venues, and attending these shows gives you a chance to get out, meet new people.
Discover New Sounds
Most bands will offer an opening act or two to get the crowd excited and on their feet. These acts may be bands or individuals you have never heard of.
Safe Outing
If you make smart choices and stay where you’re supposed to be, a concert is a great opportunity to be surrounded by people in a safe area. Though concerts are notorious for drugs and alcohol, you make smart choices and avoid these situations and simply relax and have a good time surrounded by thousands of people who are doing the same thing.
