Explanation

At the top of the waterfall, energy is stored in the form of gravitational potential energy

but when it falls, it gets converted from potential to kinetic energy

Potential energy due to the object's height above the Earth is converted to kinetic energy as it falls

Explanation

The unit for measuring liquid is the liter.

It is the standard metric unit used to measure the volume of liquids.

Explanation

The cell constant is a measure used in conductivity measurements and is defined as the ratio of the distance between the electrodes to the area of the electrodes.

Its unit is cm⁻¹ (inverse centimeters), which reflects the geometric configuration of the cell used in measuring conductivity.

Explanation

Light emitting diode is a 2 lead semiconductor device . 

Explanation

Electric flux is measured in Coulombs C, and surface area is measured in square meters (m2).

The SI unit of electric flux density is coulomb per square meters (C/m2).

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Explanation

The symbol of the SI unit Kelvin is K.

It is the base unit of temperature in the International System of Units.

It is used to measure thermodynamic temperature.

Explanation

These six quantities (length, mass, electric current, time, intensity of light, and amount of substance) are the fundamental base quantities in the International System of Units (SI).

They are the basic building blocks of the SI system and are used to define all other quantities.

Explanation

The International System of Units (SI) is a modern metric system that defines the units of measurement for base quantities.

Such as length, mass, time, current, temperature, amount of substance, and luminous intensity.

The SI system was established in 1960 and is widely used across the world as a standardized system of measurement.

Explanation

• The Second is the SI unit of time.
• It is defined as 9,192,631,770 periods of a caesium-133 atom's radiation.

Explanation

• The Second is a fundamental unit of time in the International System of Units (SI).
• It is one of the seven base units that are used to derive all other units.