5th Class General Science Chapter 9 MCQs | Space and Satellites (خلاء اور سیارچے) | PakMCQs

Stars and Moon is correct because on a clear night, the absence of clouds allows us to see these glowing celestial objects in space.

Heavenly bodies is correct as it is the standard astronomical term used to describe all natural objects located in outer space.

The universe is correct because it encompasses all of space, time, matter, energy, and the celestial bodies existing within them.

Realities of the Earth and space is correct because observing the stars and moon naturally creates curiosity about our planet and the universe.

Rocket is correct because it provides the immense thrust needed to break free from the Earth's gravity and travel into space.

How Earth and the solar system came into existence is correct as studying space from the outside provides clues about the origins of our planet.

October 4, 1957 is correct because this was the historic day when the first human-made satellite was successfully sent into space.

Soviet Union is correct because they pioneered space technology by placing the first artificial satellite into Earth's orbit.

Sputnik-1 is correct because it was the historic Russian satellite that marked the dawn of space exploration.

America is correct because the United States quickly entered the space race, launching its own satellites and missions soon after.

All of the above is correct because satellites are used for weather forecasting, worldwide communication, GPS navigation, and mapping resources.

National Aeronautics and Space Administration is correct as it is the official name of the United States federal agency responsible for space and aeronautics.

America is correct because NASA is the governmental agency of the United States of America established in 1958.

Space exploration and aviation is correct as NASA's mission is to explore space and improve flight and aeronautics technology.

July 20, 1969 is correct because this was the historic day of the Apollo 11 mission when Neil Armstrong walked on the lunar surface.

NASA is correct because they developed and executed the Apollo missions that landed astronauts on the moon.

For investigation purposes is correct because these unmanned missions are designed to study the surface, atmosphere, and composition of other worlds.

Valuable information about their environment is correct as these sensors collect data on temperature, gases, and weather conditions of other planets.

Establishment of International Space Station is correct because NASA collaborated with other nations to build this habitable laboratory orbiting the Earth.

Neil Armstrong is correct because he was the American astronaut who commanded the Apollo 11 mission and walked on the moon first.

Fifteen years is correct because MIR was a highly successful space station that operated in low Earth orbit for a decade and a half.

300 km is correct because MIR was maintained in a low Earth orbit at this specific altitude to conduct scientific research.

Performed fascinating experiments is correct because MIR served as a microgravity laboratory where physics, biology, and chemistry studies were conducted.

All of the above is correct because the ISS was built through the united efforts and resources of space agencies from Russia, Japan, Canada, Europe, and the USA.

Greater than a football ground is correct because the massive structure of solar panels and modules makes the ISS as large as a sports field.

400 km is correct because the ISS maintains a stable low Earth orbit at this altitude, completing multiple trips around the planet daily.

Last twenty years is correct because the ISS has maintained a continuous human presence in space since its first modules were launched.

90 minutes is correct because travelling at a high speed allows the ISS to circle the entire Earth multiple times in a single day.

Scientists from all over the world is correct as the ISS is a global laboratory where researchers go to conduct experiments in space.

Space shuttles is correct because these specialized spacecraft are designed to transport crew and cargo between Earth and orbit.

More than 250 is correct because since its launch, many researchers from various nations have lived and worked on the space station.

Gravity-free environment is correct because the state of microgravity on the ISS allows scientists to study physical forces without the pull of Earth.

3rd November 1957 is correct because this was the historic day of the second Russian satellite launch, occurring shortly after the first.

A dog is correct because Sputnik-2 carried a stray dog named Laika to test if living creatures could survive the launch and orbit.

Satellite is correct because any natural or artificial object orbiting a larger body in space is classified as a satellite.

The Moon is correct because it is caught in the Earth's gravitational pull, making it revolve around our planet continuously.

Natural satellite is correct because the Moon was formed naturally in space, unlike artificial satellites built by humans.

Only one is correct because the Moon is the single natural satellite orbiting the Earth.

2 moons is correct because Mars is orbited by exactly two small natural satellites named Phobos and Deimos.

79 moons is correct because Jupiter has a massive gravitational pull that has captured many natural satellites.

Saturn is correct because this ringed planet holds the record in the table for having the highest number of moons.

27 moons is correct because astronomers have identified this specific number of natural satellites orbiting Uranus.

14 moons is correct because Neptune has this specific number of confirmed natural satellites revolving around it.

Planet Venus is correct because it is highly reflective and appears as a very bright object in the early morning or evening sky.

Morning star is correct because Venus is the brightest star-like object visible in the eastern sky just before dawn.

Jupiter and Saturn is correct because their larger moons, like Galileo's moons of Jupiter, are bright enough to be visible with basic telescopes.

Handy telescope is correct because a telescope is specifically designed to magnify distant celestial objects like planets and moons.

Venus is correct because, unlike most planets that spin counter-clockwise, Venus has a backward or clockwise rotation on its axis.

East to West is correct because Venus's backward spin means the sun would rise in the west and set in the east on this planet.

Retrograde Rotation is correct as it is the official astronomical term used to describe a planet spinning in the opposite direction of its orbit.

West to East is correct because the Earth's counter-clockwise rotation on its axis determines the length of our day and night.

East to West is correct because the Earth's forward rotation creates an optical illusion making sky objects look like they are rising in the east and setting in the west.

Artificial satellites is correct because these are manufactured devices launched by humans into orbit, unlike natural moons.

By a rocket is correct because rockets provide the high velocity and thrust necessary to escape the lower atmosphere.

It becomes slower is correct because gravity is weaker at higher altitudes, meaning a satellite requires less speed to stay in orbit.

Longer time is required is correct because a higher orbit has a much longer path and the satellite travels at a slower speed.

Hundreds of satellites is correct as various nations have launched numerous devices for communication, weather, and research.

Moving stars is correct because satellites reflect sunlight and appear as steady, slowly moving points of light across the night sky.

Radio signals is correct because the telescope translates its images into digital radio waves to transmit them back to scientists on Earth.

Hubble is correct because the Hubble Space Telescope is one of the most famous orbiting instruments used to capture clear images of deep space.

Radio, TV, and internet is correct because satellites act as global relay stations that beam these signals across oceans and continents.

By telephone is correct because telecommunication systems route international phone calls through satellites orbiting the Earth.

Our exact position is correct because GPS (Global Positioning System) satellites allow devices to calculate the user's precise coordinates on Earth.

Changes in weather is correct because weather satellites monitor cloud movements and temperatures to help meteorologists forecast storms and rain.

Floods, storms, and forest fires is correct because early warning signs allow emergency services to evacuate areas and minimize disaster damage.

Geostationary satellites is correct because their orbital speed matches the Earth's spin, making them appear fixed over one spot.

About 36,000 km is correct because at this specific high altitude, the time it takes to complete one orbit matches exactly 24 hours.

The Equator is correct because positioning them directly over the Earth's center line allows them to stay in synchronization with the planet's rotation.

Stationary at one place is correct because as both the Earth and the satellite spin at the same rate, the satellite seems to be unmoving.

Communication and TV signals is correct because their fixed position makes them perfect for sending and receiving continuous broadcasting data across the globe.

1,470 km per hour is correct because this is the calculated rotational velocity of the Earth's surface at the equatorial line.

It must travel at a specific speed is correct because to balance the Earth's gravitational pull at a certain height, the satellite must maintain a precise orbital velocity.

The lower the height, the faster it must move is correct because gravity is stronger closer to Earth, requiring more speed to avoid falling.

Only three is correct because three strategically placed satellites are sufficient to create a network that covers the entire globe.

Polar Orbiting Satellites is correct because they fly over the poles, providing close-up and comprehensive images of the Earth's atmosphere.

From North Pole to South Pole is correct because their orbit is aligned vertically, allowing them to cross both polar regions on each trip.

To survey the Earth is correct because these low-altitude satellites take highly detailed surface images used for mapping and tracking changes.

Because the Earth spins under their orbits is correct because as the planet rotates horizontally beneath the vertical orbit, the satellite scans different strips of land.

Both (A) and (B) is correct because these multi-purpose satellites also assist in ship routing and tracking other hardware in space.

Both (A) and (B) is correct because these satellites receive and redirect electromagnetic signals for phone calls, internet, and television broadcasting worldwide.

Over 200 is correct because a massive global network of ground stations is required to keep track of and communicate with these satellites.

Dish antennas is correct because these curved devices concentrate weak satellite signals from space into a receiver to provide TV channels.

Remote sensing is correct because it is the scientific term for gathering geographic data about the Earth from a distance using satellite sensors.

Because it is too far and lacks devices is correct because the Moon is 384,000 km away and has no electronic transmitters to repeat signals like artificial satellites do.

GPS is correct because it uses a network of satellites to calculate the precise coordinates of a receiver on Earth.

24 satellites is correct because this specific number of active satellites ensures global coverage and accurate positioning at any time.

400 km is correct because, as stated, the GPS satellites are maintained in orbits at this specific altitude.

Six sets is correct because the 24 satellites are distributed evenly across six different orbital planes to cover the entire globe.

Four signals is correct because a GPS receiver needs at least four satellite signals to calculate latitude, longitude, altitude, and time.

The exact position of its location is correct because the cell phone uses the time and distance data from the signals to pin-point its coordinate location.

To tell where they are and select the best route is correct because GPS maps show traffic, roads, and directions to guide drivers to their destination efficiently.

All of the above is correct because pilots, sailors, and hikers all rely on GPS technology for safe navigation across air, sea, and land.

Within 10 meters is correct because modern consumer GPS receivers can pinpoint a user's location with very high precision.

Sputnik 1 is correct because it was the historic Russian satellite that became the first man-made object to orbit the Earth.

Explorer 1 is correct because it was the first successful American satellite, launched to gather scientific data about Earth's orbit.

To explore the Van Allen radiation belt is correct because the instruments on Explorer 1 discovered this band of charged particles around Earth.

Yuri Gagarin is correct because this Soviet cosmonaut made a historic single orbit around the Earth inside the Vostok 1 spacecraft.

Apollo-11 is correct because it was the specific NASA lunar mission that carried the first humans to the moon's surface.

March 1994 is correct because this was the date when the full constellation of satellites required for the system became fully operational.

First piece of the International Space Station was launched is correct because it marked the beginning of building the largest international laboratory in space.

Curiosity is correct because this highly advanced NASA robotic rover was sent to Mars to investigate its geology and past environment.

November 26, 2011 is correct because this was the launch date of the Mars Science Laboratory mission carrying the Curiosity rover.

To explore the environment of Mars is correct because the rover is designed to study whether Mars ever had environmental conditions suitable for life.