Explanation

• When the volume of a gas decreases at constant temperature, its pressure increases.
• This relationship is explained by Boyle's Law.
• Boyle's Law states that pressure is inversely proportional to volume when temperature remains constant.

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Explanation

• Resonance is the scientific reason the glass can break.
• It happens when the sound frequency matches the glass's natural frequency.
• The vibrations become very strong and increase rapidly.
• If the vibrations are powerful enough, the glass may shatter.

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Explanation

• Neil Armstrong was the first human to set foot on the Moon on July 20, 1969, during NASA's Apollo 11 mission.
• His famous words upon landing were, "That's one small step for man, one giant leap for mankind."

Additional information:

• Neil Alden Armstrong was died on August 25, 2012.
• He was born on August 5, 1930.

Last verified on 01-04-2026

Explanation

• In a vacuum, both balls reach the ground at the same time because there is no air resistance.
• All objects fall with the same gravitational acceleration (9.8 m/s²).
• The mass of an object does not affect its falling speed in a vacuum.
• This principle was demonstrated by Galileo Galilei.

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Explanation

• The Troposphere contains about 75% of the atmosphere's mass.
• It is the lowest layer of Earth's atmosphere.
• Altitude Range: About 8 km at poles to 15–18 km at equator.
• Main Gases: Nitrogen (78%), Oxygen (21%), and other gases.ev

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Explanation

• In a nuclear reactor, energy is produced due to a controlled chain reaction.
• A controlled chain reaction releases energy steadily and safely.
• Control rods are used to regulate the number of neutrons and prevent excessive reactions.
• This controlled process is used to generate electricity in nuclear power plants.

Additional information:

• An uncontrolled chain reaction occurs in nuclear bombs.

Last verified on 11-07-2026

Explanation

• Extrusion is a manufacturing process in which metal is pressed through a shaped die under high pressure to produce the desired shape.
• It is used to manufacture products with a uniform cross-section.
• The process can be performed on hot or cold metal.
• Extrusion is widely used to produce rods, tubes, pipes, and structural sections.
• It provides a smooth surface finish and reduces material wastage.

Last verified on 10-07-2026

Explanation

• Asteroids travel around the Sun in elliptical orbits.
• Most asteroids are found in the Asteroid Belt between Mars and Jupiter.
• Their orbits follow Kepler's Laws of Planetary Motion.
• The shape of the orbit may vary from nearly circular to highly elliptical.
• Asteroids are small rocky bodies that revolve around the Sun.

Last verified on 10-07-2026

Explanation

• Navigation satellites are used to identify the location of objects on Earth.
• They provide position, navigation, and timing (PNT) services.
• These satellites help determine the exact location of people, vehicles, ships, and aircraft.
• They are widely used for navigation, mapping, and tracking.
• The most well-known navigation satellite system is GPS (Global Positioning System).

Last verified on 10-07-2026

Explanation

• In forging, a slow squeezing process is called Press forging.
• Press forging shapes the metal by applying slow and continuous pressure.
• It produces more accurate shapes and a better surface finish than hammer forging.
• It is commonly used for manufacturing large and strong metal components.
• The process improves the strength and grain structure of the metal.

Last verified on 09-07-2026