Explanation

An anemometer is an instrument that measures wind speed.

This type of anemometer has a spinning wheel.

Additional Information:

A hygrometer is an instrument used to measure humidity

A salinometer is used to measure the salinity

A bolometer is used to measure the power of incident electromagnetic radiation

A barometer is used to measure air pressure in certain environment.

Explanation

Anthropology is the study of human life and culture.

It focusing on the development of societies, customs, and behaviors.

It includes subfields like cultural anthropology, archaeology, and biological anthropology to explore human complexity.

Explanation

Ernest Rutherford showed (1919) that nitrogen under alpha-particle bombardment ejects what appear to be hydrogen nuclei.

By 1920 Ernest Rutherford had accepted the hydrogen nucleus as an elementary particle, naming it proton.

while

Electron was discovered by J. J. Thomson in 1897.

Explanation

Oncology is a branch of medicine that deals with the study, treatment, diagnosis, and prevention of cancer.

A medical professional who practices oncology is an oncologist.

The name's etymological origin is the Greek word ὄγκος, meaning "tumor", "volume" or "mass".

Explanation

Fathometer: سمندر کی گہرائی کو جاننے والا آلہ

A fathometer is an instrument used to measure the depth of the ocean or any body of water, specifically the distance from the surface to the seabed.

It uses sound waves to calculate the depth by measuring the time it takes for the waves to return.

Galvanometer – Used to measure electric current.

Explanation

Explanation

Water has a maximum density of 4 degrees Celsius.

while

Water freezes at 0 degrees Celsius and 32 degrees Fahrenheit.

Explanation

The SI unit of energy/work is the joule (J)

named for English physicist James Prescott Joule (1818 - 1889).

Joule discovered the relationship between heat and mechanical work, which led to the development of the laws of thermodynamics.

Explanation

A microphone converts sound into a small electrical current.

Sound waves hit a diaphragm that vibrates, moving a magnet near a coil.

In some designs, the coil moves within a magnet.

Other microphones, such as condenser microphones, work on the principle of capacitance.

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Explanation

The law of inertia is another name for Newton's first law.

'Unless an unbalanced force acts upon it, an object will remain at rest and an item in motion stays in the same direction and speed)'.