Ultrasonic waves and Infrasonic waves sound CBSE Class 8 Science

Ultrasonic waves and Infrasonic waves soundCBSE Class 8 Science

What is Infrasonic sound?

Infrasonic sound is defined as a sound with a frequency of less than 20 Hz. The frequency of infrasonic sounds is below the range of human hearing ability.

Infrasonic sound waves can be produced by earthquakes, thunder, and volcanic eruptions, for example. Elephants and whales can detect this sound, even if the human ear is incapable of hearing it. Elephants, whales, rhinos, and pigeons all use infrasound to communicate.

What are Waves of ultrasonic sound?

Ultrasonic sound is defined as sounds with a frequency of more than 20,000 hertz (cycles per second). The frequency of ultrasonic noises is higher beyond the range of human hearing ability to discriminate.

The hearing range of dogs, cats, bats, and mice, for example, extends into the ultrasonic frequency region. They are able to detect wavelengths that humans are unable to detect.

Ultrasound's Applications

Ultrasound is also used to monitor a baby's development in the womb at various stages.
Ultrasound is used to weld plastic surfaces.
Echocardiography is the use of ultrasound to explore the structure and motion of the heart. The information is used to see if the patient's heart has a problem.

Know more about the Characteristics of sound waves

Click for Online tuition for class 8

Comments

Lessons-Worksheets-Question Papers-CBSE Class 2 English

Lessons-Worksheets-Question Papers-CBSE Class 2 English CBSE 2nd Class English – One and Many In this blog, we share the spelling rules used in the concept of One and Many. When there is only one of a naming word (noun), it is said to be a singular noun . When a noun shows more than one, it is said to be in the plural . We can add –S, -es, -ves or ies to show that there is more than one noun. For example, we say many birds, four biscuits, six brushes. But for the students of Class 2 , it’s very difficult and confusing to understand where to use s , es, ves or ies in the form of many. Don’t worry, it looks difficult, but it is very easy as in grammar each concept has a set of rules that need to practice. Noun ending with –s, -x, -o, -sh, -ch, and –ss form plurals by taking –es. Look at these pairs of words: Bus – Buses Brush – Brushes Continue ..... Click here ...

Magnetic and non-magnetic material Class 6 Science

Magnetic and non-magnetic material Class 6 Science A magnet is a substance that is drawn to certain magnetic materials like iron, cobalt, and nickel. Magnets have the ability to draw iron to them. Natural magnets are rocks that naturally draw iron. Non-magnetic materials include things like wood, rubber, coins, feathers, leather, etc. that are not drawn to iron. Magnet characteristics It pulls magnetic materials, such as iron. The magnet's two ends are referred to as its poles. The magnet's diametrically opposed poles are drawn together. Heating, hammering, or dropping causes it to lose its characteristics. On the basis of properties types of Magnets Temporary magnets are those magnets that are magnetic for only a little duration. Typically, iron, cobalt, or nickel are used to make them. When they are close to the powerful magnet, they act like a magnet. When they are yanked away from the powerful magnet, they stop being magnetic. Permanent magnets are magnets that have magne...

Class 3 English Practice Grammar Worksheet -The Adverb

Class 3 English Practice Grammar Worksheet -The Adverb Class 3 English – The Adverb – Kinds of Adverb Fill in the blanks with suitable Adverbs of place. Choose from the box. Up outside everywhere back down away here there ...

Takshila Learning - Online Tutorials

Search This Blog