Explanation

• Velocity is a vector quantity. 
• A vector quantity has both magnitude and direction.
• Velocity, which describes the rate of change of position in a specific direction.
• It needs both a magnitude (speed) and a direction to be fully defined. 
• Vector Quantities: Velocity, momentum, torque, acceleration.
• Scalar Quantities: Work, distance, speed, mass.

Last verified on 12-10-2026

Explanation

• Mars is known as the Red Planet due to its reddish appearance.
• Its surface contains iron oxide (rust) which gives it a red color.
• It is the 4th planet from the Sun in the solar system.
• Mars has two small moons: Phobos and Deimos.
• Mars is often called the “planet of future exploration”.

Last verified on 12-06-2026

Explanation

• Jupiter has the shortest rotation period of all eight planets in the Solar System.
• It completes one rotation in approximately 9 hours and 56 minutes.

Additional information:

• Fastest rotation: Jupiter
• Earth's rotation: Approximately 24 hours
• Mars's rotation: Approximately 24 hours 37 minutes

Last verified on 12-10-2026

Explanation

• The Equator is an imaginary line that divides Earth into the Northern Hemisphere and Southern Hemisphere.
• It is located at 0° latitude.
• It is the largest circle of latitude.
• It is with a circumference of approximately 40,075 km.
• The Equator passes through parts of South America, Africa, and Asia.

Additional information:

• Equator: 0° latitude; divides north and south.
• Prime Meridian: 0° longitude; divides east and west.
• Tropic of Cancer: Approximately 23.5° north latitude.
• Tropic of Capricorn: Approximately 23.5° south latitude.

Last verified on 12-10-2026

Explanation

• Michael Faraday introduced the concept of the electric field in the 19th century.
• He developed the idea of lines of force to explain how electric charges exert forces on one another.

Additional information:

• James Clerk Maxwell later developed mathematical equations describing electromagnetic fields.

Last verified on 12-10-2026