Sound is a form of energy that travels in waves known as compression waves or waves that are compacted by pressure. Sound can travel in many mediums such as solids, gas, and water. Most importantly is the presence of molecules in our atmosphere for sound cannot be heard in the vacuum of space. So, when you tap your pencil on your desk, you are creating a vibration that can be heard. The harder you tap, the louder the sound will be.
A wooden desk, water,chair,paper,and pencil are the matters.
Dj
Millions!you are not the only one who uses your school desk,are you?So each person who seats may leave germs on the desk.You should always wash your hands after using the bathroom,eating,playing,handling chemicals,medication.Also be obliged to remind a friend to wash his or her hands to reduce the germs deposited on your school desk.
no because it not right things to use
This is the example of Newton third law and law of inertia.
Why this is in the jokes and riddles section is beyond me. Anyhow, when a student taps his pencil on a desk, the impact causes the pencil and the desk to vibrate. This vibration also causes the air to vibrate, and vibrations in the air = sound!
When a physical object moves in air, it causes vibrations which lead to compression waves in the air. These waves travel in the form of sound.
When you place your ear on the desk and listen to the sound of pencil tapping, that sound becomes amplified because the desk acts as a resonating chamber. When you lift your ear off the desk and listen to the tapping in the air, the sound may seem quieter or different because there is less direct contact with the surface to amplify the vibrations.
No.
poo
air
It's a question asking: Is there a pencil on the desk. Usually means in the desk, so it would be: Is there a pencil in the desk.
I have a pencil in (meaning on) my desk. Tengo un lapiz en mi escritorio/pupitre/carpeta (alternatives for 'desk') I have a pencil in[side] my desk Tengo un lapiz dentro de mi escritorio.
Gravity pulls the pencil downward towards the desk, creating a force that helps keep it balanced when not being moved by an external force. Other factors, such as the friction between the desk and the pencil, also play a role in keeping it stable.
The form "student's desk" refers to the desk belonging to a student. The form "students' desk" refers to a desk belonging to multiple students. The form students desk not possessive because it does not have an apostrophe. The word "students" is simply the plural form of the noun student.
It is called the mechanical pencil!
probably at his desk.