Explanation

The planet that revolves the slowest around the Sun is Neptune.

It takes Neptune approximately 165 Earth years to complete one orbit around the Sun.

This slow movement is due to Neptune's large distance from the Sun, which is nearly 4.5 billion kilometers.

Neptune is the farthest planet.

It was visited by the spacecraft Voyager 2.

It's is a very windy place.

It has six rings.

It has 14 moons.

Explanation

Electric power: Rate of energy transfer.

It is measured in watts (W), or one joule per second.

Energy/Work: Measured in joules (J).

Charge: Measured in coulombs (C).

Pressure: Measured in pascals (Pa).

Electric current: Measured in amperes (A).

Electric resistance: Measured in ohms (Ω).

Temperature: Measured in kelvin (K).

Torque: Measured in newton metres (N m).

Velocity: Measured in meters per second (m/s).

Acceleration: Measured in meters per second squared (m/s²).

Explanation

Motion occurs when a body changes its position relative to another body or its surroundings.

It can be described in terms of displacement, velocity, and acceleration.

Explanation

• Attenuation refers to the decrease in strength or intensity of a signal as it travels through a medium or is processed by a system.
• This can occur due to various factors such as resistance, impedance, or absorption, and can affect the quality and fidelity of the signal.

Explanation

The core principle behind a hydrogen bomb is the fusion of light atomic nuclei.

Specifically isotopes of hydrogen (deuterium and tritium), under extremely high temperatures and pressures. 

Explanation

The wind is used to produce electricity by converting the kinetic energy of air in motion into electricity.

Wind energy is the energy obtained from the force of the wind.

The unit of wind is: joule

Explanation

Lead is commonly used in lead-acid batteries, which are widely used in automotive applications and for backup power systems.

Lead-acid batteries are known for their reliability and relatively low cost. 

Explanation

Altimeters:

Function:

It primarily measures altitude by detecting changes in atmospheric pressure. 

Aviation use:

Pilots heavily rely on altimeters to determine their aircraft's height above sea level during flight. 

Types:

There are different types of altimeters including pressure altimeters and radio altimeters. 

Explanation

All electromagnetic waves travel at the same speed through empty space

Electromagnetic waves are formed between electrical and magnetic fields due to vibrations.

Electromagnetic waves travel with the speed of light in free space.

The speed of light is  3*10^8 m/s

Hence, Electromagnetic waves travel at the speed of 3*10^8 m/s.

Explanation

The least count of a Vernier caliper is 0.01mm.

It is the smallest measurement that can be accurately read using the instrument.

It is derived from the difference between one main scale reading and one Vernier scale reading.