Question

Task 3: Match the following:
Crystal Dynamics - a frequency above the human ear's audibility limit
Hypersonic
the vibrational movement of atoms in the solid state
Ultrasonic
Speed of more than 5 Mach
Optics
concerned with the properties of sound.
Acoustics
studies the behaviour and properties of light​

Answer 1

Answer:

Crystal dynamics - The vibrational movement of atoms in the solid state.

Hypersonic - Speed more than 5 machs.

Ultrasonic - A frequency above the human ear's audibility limit.

Optics - Studies the behavior and properties of light.

Acoustic - concerned with the properties of sound.

Answer 2

Answer:

Crystal dynamics - The vibrational movement of atoms in the solid state.

Hypersonic - Speed more than 5 machs.

Ultrasonic - A frequency above the human ear's audibility limit.

Optics - Studies the behavior and properties of light.

Acoustic - concerned with the properties of sound.

Explanation:

What is Hypersonic ?

• A hypersonic speed, which is frequently defined as beginning at velocities of Mach 5 and above, is one that exceeds five times the speed of sound in aerodynamics.
• Since distinct physical changes in the airflow, such as molecule dissociation and ionisation, occur at different speeds, the precise Mach number at which a ship may be regarded to be travelling at hypersonic speed varies.
• These effects cumulatively become significant around roughly Mach 5-10.
• The kinetic energy of the moving object is transformed into heat at speeds in the hypersonic zone, where the specific heat capacity varies with the flow temperature.
• Certain physical phenomena that were once analytically disregarded in a supersonic flow may now be present in a hypersonic flow.

To learn more about kinetic energy, refer:

https://brainly.com/question/8101588

https://brainly.com/question/25959744

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