Explanation

• The rate of change in displacement is referred to as velocity.
• The velocity of an object generally changes during its motion.
• The change in position is known as displacement.
• The maximum displacement from the mean position is called amplitude.

Last verified on 26-10-2026

Explanation

Water has maximum density at 4°C.

When Water is in its Solid form (Ice) below 0°C.

Explanation

• Frequency is the number of occurrences of a repeating event per unit of time.
• The SI unit of frequency is the hertz (Hz).
• 1 Hz = 1 cycle or vibration per second
• Unit: Hz = s⁻¹ (per second)
• Named after physicist Heinrich Hertz
• Used for waves, oscillations, sound, and electromagnetic radiation
• Derivations from other quantities: f = 1 / T
• Dimension T^−1

Explanation

• Density is the mass per unit volume of a substance.
• Density is calculated by dividing the mass of a substance by its volume.
• The SI unit of density is kilogram per cubic metre (kg/m³).

Last verified on 25-10-2026

Explanation

• K2 is part of the Karakoram Range.
• It is located on the border between Baltistan, in the Gilgit–Baltistan region of Pakistan.

Additional information:

• K-2 is also known as Godwin Austin.
• 'K' standing for Karakoram.
• Mount K2 is the second-highest mountain on Earth.
• Mount K2 is located on the border of Pakistan and China.
• The height of K2 is 8,611 meters.

Last verified on 12-03-2026

Explanation

• The Diamer-Bhasha Dam is constructed on the Indus River.
• It is located between Kohistan (Khyber Pakhtunkhwa) and Diamer (Gilgit-Baltistan).
• The foundation in 1998 by Prime Minister Nawaz Sharif.
• Opened: 2028
• Height: 272 m

Additional information:

Last verified on 20-06-2026

Explanation

• Name: Hazrat Shoaib (A.S)
• Title: Khatib-ul-Anbiya (Speaker of the Prophets) due to his powerful speech and preaching style.
• Nation: People of Madyan and Aykah
• Main message: Truthfulness, fair business, worship of Allah
• Relationship: Father-in-law of Hazrat Musa (A.S)

Last verified on 11-06-2026

Explanation

• Presented by: Sir Syed Ahmad Khan
• Famous Speech: Meerut Speech
• Date: 16 March 1888
• Purpose: To explain that Muslims and Hindus were separate nations with different religious, cultural, and social identities.
• Importance: Became the ideological foundation of Pakistan.

Last verified on 10-07-2026

Explanation

• Ctrl + S = To save a document.

Additional information:

• Ctrl + X → Cut (remove selected text)
• Ctrl + R → Align text to the right
• Ctrl + E → Center align text
• Ctrl + J → Justify paragraph
• Ctrl + L → Align text to the left
• Ctrl + Q → Remove paragraph formatting (reset to default left alignment)

Last verified on 10-06-2026

Explanation

• World War II: Global war, 1939–1945.
• Little Boy: Dropped on Hiroshima, 6 August 1945.
• Fat Man: Dropped on Nagasaki, 9 August 1945, 11:01 AM.
  

Additional information:

• World War I: Global war in Europe, 28 July 1914 – 11 November 1918.

Last verified on 17-05-2026