Class 6 Science MCQs – Space and Satellites (Sindh Textbook)
Moon is the ______ satellite of Earth.
The Moon is classified as a natural satellite because it orbits the Earth and was not created by humans.
Most of the ______ lie between the orbits of Mars and Jupiter.
Most asteroids are found in the asteroid belt, which is located between the orbits of Mars and Jupiter.
The time period of a ______ orbit is 24 hours.
A geostationary orbit has a time period of 24 hours, matching Earth's rotation period, allowing the satellite to remain over the same location on Earth.
______ are called shooting stars.
Meteors are commonly known as shooting stars because they create bright streaks of light as they enter Earth's atmosphere.
______ satellites are used to locate the position of ships, aircraft, and automobiles.
Navigation satellites are used to determine the precise location and provide navigation assistance for ships, aircraft, and automobiles.
The tail of a comet appears as it passes near the ______.
A comet's tail becomes visible as it approaches the Sun due to the solar wind and radiation pressure.
In the word GPS, the letter "G" stands for ______.
In GPS, the letter "G" stands for Global, as in Global Positioning System.
Earth observation satellites are used to take ______ of Earth.
Earth observation satellites are primarily used to capture photographs and images of Earth for various applications such as weather monitoring and environmental studies.
Which country launched the first artificial satellite in space?
Russia launched the first artificial satellite, Sputnik 1, in 1957.
Which of the following is not a natural satellite?
Sputnik-1 is not a natural satellite; it was the first artificial satellite launched by humans.
Earth observation satellites are used for:
Earth observation satellites are primarily used for mapping and monitoring the Earth's surface.
Global Positioning System (GPS) is used to:
GPS is used to identify the precise location of objects on Earth using signals from satellites.
Which of the following is a natural satellite of Earth?
The Moon is the natural satellite of Earth.
What is a celestial body?
A celestial body is any naturally occurring object in the observable universe, such as stars, planets, and asteroids.
Which of these is NOT a natural satellite?
The Hubble Telescope is not a natural satellite; it is a man-made telescope in space.
Which planet has no natural satellite?
Mercury is the planet in our solar system that has no natural satellites.
Artificial satellites are:
Artificial satellites are man-made objects that are intentionally placed into orbit around celestial bodies like Earth.
What helped scientists observe distant objects in space?
Telescopes are instruments that helped scientists observe distant objects in space by collecting and magnifying light from those objects.
Which of these is an artificial satellite?
A GPS Satellite is an example of an artificial satellite used for navigation and positioning services.
The Moon is a natural satellite of:
The Moon is the natural satellite of Earth.
Astronomy is the science that studies:
Astronomy is the scientific study of celestial objects such as stars, planets, galaxies, and other phenomena originating outside the Earth's atmosphere.
What makes the Moon visible from Earth?
The Moon is visible from Earth because it reflects sunlight.
What is the size of the Moon compared to Earth?
The diameter of the Moon is about one-fourth the diameter of Earth.
When did humans first land on the Moon?
Humans first landed on the Moon in 1969 during the Apollo 11 mission.
Which mission landed the first humans on the Moon?
The Apollo 11 mission successfully landed the first humans on the Moon.
What are asteroids mostly made of?
Asteroids are mostly composed of rocks and metals.
Where are most asteroids found?
Most asteroids are found in the asteroid belt, which is located between the orbits of Mars and Jupiter.
What are comets made of?
Comets are composed of a mixture of ice, dust, and gases.
What causes a comet’s tail to form?
A comet's tail forms due to the heat from the Sun, which causes the comet's ice to vaporize and release dust and gas.
What is a meteor commonly called when seen from Earth?
A meteor is commonly called a shooting star when seen from Earth due to the bright streak of light it creates as it enters the atmosphere.
Which energy source is mainly used by satellites in space?
Satellites in space mainly use solar energy, captured through solar panels, to power their systems.
What shape are most satellite orbits around the Earth?
Most satellite orbits around the Earth are elliptical, although some can be nearly circular.
Which device is commonly used in ground stations to receive satellite data?
Dish antennas are commonly used in ground stations to receive data transmitted by satellites.
What is the name of Pakistan’s first communication satellite?
PAKSAT-1R is the name of Pakistan's first communication satellite.
What is the time period of a geostationary satellite’s orbit?
The time period of a geostationary satellite's orbit is 24 hours, matching the Earth's rotational period.
Which of these is a communication satellite?
Americom is an example of a communication satellite used for broadcasting and telecommunications.
Astronauts are people who:
Astronauts are individuals who travel into space, often as part of a space mission or research.
Which of the following is a space agency from India?
ISRO (Indian Space Research Organisation) is the space agency of India.
What does GPS stand for?
GPS stands for Global Positioning System, a satellite-based navigation system.
What is the main purpose of GPS?
The main purpose of GPS is to provide location and time information anywhere on or near the Earth, useful for navigation and positioning.
Which of the following is NOT a part of the GPS system?
Microscopes are not part of the GPS system, which consists of satellites, ground stations, and receivers.
How does a GPS receiver find your location?
A GPS receiver finds your location by collecting signals from multiple GPS satellites and calculating the distance to each satellite.