How do you hear a sound for Class 3? How people hear: Sound waves are sent. Waves travel through pinna and into ear canal (outer ear). Eardrum vibrates as sound waves enter the ear canal. Three tiny bones in the middle ear called the ossicles (Hammer, Anvil and Stirrup) vibrate. Cochlea transfers sound waves into […]
What happens if the pinna is damaged?
What happens if the pinna is damaged? The outer part of your ear, known as the pinna, funnels sound into your ear canal, like a megaphone in reverse. If someone cut it off, everything would sound quieter. (A wound that scabbed over would make the sound suppression more severe.) Why does my Pinna hurt? Infection […]
What are the 4 basic forces?
What are the 4 basic forces? Fundamental force, also called fundamental interaction, in physics, any of the four basic forces—gravitational, electromagnetic, strong, and weak—that govern how objects or particles interact and how certain particles decay. What element is the most powerful? 1 Air/wind. Air control is the most strongest element there is. 2 Fire. Fire […]
How air passes through the respiratory system step by step?
How air passes through the respiratory system step by step? Air enters the respiratory system through the nose and mouth and passes down the throat (pharynx) and through the voice box, or larynx. The entrance to the larynx is covered by a small flap of tissue (epiglottis) that automatically closes during swallowing, thus preventing food […]
What two things does weight depend on?
What two things does weight depend on? weight ( ) 1. The force with which an object near the Earth or another celestial body is attracted toward the center of the body by gravity. An object’s weight depends on its mass (the amount of matter it consists of) and the strength of the gravitational pull. […]
How do you find the horizontal asymptote of a graph?
How do you find the horizontal asymptote of a graph? The horizontal asymptote of a rational function can be determined by looking at the degrees of the numerator and denominator. Degree of numerator is less than degree of denominator: horizontal asymptote at y = 0. Degree of numerator is greater than degree of denominator by […]
What are the two processes of erosion?
What are the two processes of erosion? Erosional processes along coastlines include: (1) the direct effects of hydraulic action, wedging, and cavitation by waves; (2) abrasion (corrasion), using sand, gravel, and larger rock fragments as tools; (3) attrition of the rock particles themselves during this abrasive action; (4) salt weathering or fretting; (5) … What […]
At what time the maximum power is delivered to the inductor?
At what time the maximum power is delivered to the inductor? The time at which power delivered to the inductor is maximum is obtained by equating the derivative of power to zero. How do you verify the maximum power transfer theorem? Condition for Maximum Power Transfer Therefore, the condition for maximum power dissipation across the […]
What is the first organ to receive oxygenated blood?
What is the first organ to receive oxygenated blood? Blood enters the right atrium and passes through the right ventricle. The right ventricle pumps the blood to the lungs where it becomes oxygenated. The oxygenated blood is brought back to the heart by the pulmonary veins which enter the left atrium. From the left atrium […]
What are the physical properties used to identify rock forming minerals?
What are the physical properties used to identify rock forming minerals? Key Concepts Properties that help geologists identify a mineral in a rock are: color, hardness, luster, crystal forms, density, and cleavage. Crystal form, cleavage, and hardness are determined primarily by the crystal structure at the atomic level. Color and density are determined primarily by […]