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Quiz Chapter 10: Space Exploration

10 questions · Form 3 Science Bab 10: Space Exploration

10 questions · plays in fullscreen

Full Question List & Answer Key

Prefer reading to quizzing? All 10 questions are listed below with the answer and explanation under each one.

1. How did Johannes Kepler modify Nicolaus Copernicus's Heliocentric Model?

  1. He placed Earth back at the center of the universe.
  2. He showed that planets revolve around the Sun in elliptical orbits rather than circular orbits.
  3. He proved that the Sun orbits around Jupiter.
  4. He proposed that planets travel in straight lines through space.
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Answer: B

Kepler refined the heliocentric model by discovering that planetary orbits around the Sun are elliptical, not perfect circles.

2. What is 'space junk' or orbital debris?

  1. Natural meteoroids entering Earth's atmosphere
  2. Defunct human-made objects, spent rocket stages, and broken satellite fragments orbiting Earth
  3. Harmful gas clouds produced by solar flares
  4. Dust particles from comets tail passing by
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Answer: B

Space debris consists of non-functional artificial materials left in orbit by human space activities, posing collision hazards.

3. Which technology allows scientists to collect physical and environmental data about Earth's surface from satellite sensors orbiting at a distance?

  1. Geothermal tapping
  2. Remote sensing
  3. Radiocarbon dating
  4. Sonar bathymetry
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Answer: B

Remote sensing uses satellite-borne optical, radar, or infrared sensors to observe Earth's surface features from space.

4. Which Malaysian satellite was launched into space for Earth observation and remote sensing research?

  1. MEASAT-1
  2. RazakSAT
  3. ASTRO-1
  4. TungkuSAT
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Answer: B

RazakSAT is a Malaysian high-resolution Earth observation satellite launched into a Near-Equatorial Orbit.

5. Which model of the Solar System was published by Nicolaus Copernicus in 1543?

  1. Geocentric Model (Earth at the center)
  2. Heliocentric Model (Sun at the center)
  3. Galactic Core Model (Black hole at the center)
  4. Tychonic System Model
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Answer: B

Copernicus proposed the Heliocentric Model, placing the Sun at the center of planetary orbits.

6. Who was the first scientist to use an optical telescope to observe astronomical bodies in 1609?

  1. Isaac Newton
  2. Galileo Galilei
  3. Yuri Gagarin
  4. Edwin Hubble
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Answer: B

Galileo Galilei was the pioneer who built and pointed an optical refracting telescope toward the night sky in 1609.

7. What is the primary function of a launch rocket in space missions?

  1. To provide a long-term living habitat for astronauts in orbit
  2. To overcome Earth's gravitational pull and carry payloads into space
  3. To reflect radio signals back to Earth receivers
  4. To harvest solar radiation and convert it into water
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Answer: B

Rockets generate massive thrust by expelling high-velocity exhaust gases to escape Earth's gravity and place spacecraft into orbit.

8. Which astronomer proposed the Geocentric Model stating that Earth is fixed at the center of the Universe?

  1. Nicolaus Copernicus
  2. Claudius Ptolemy
  3. Johannes Kepler
  4. Galileo Galilei
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Answer: B

Claudius Ptolemy formulated the Geocentric Model where Earth was considered the static center of the Universe.

9. Who was the first human to travel into outer space aboard the Vostok 1 spacecraft in 1961?

  1. Neil Armstrong
  2. Yuri Gagarin
  3. Buzz Aldrin
  4. Dato' Dr. Sheikh Muszaphar Shukor
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Answer: B

Soviet cosmonaut Yuri Gagarin became the first human in space when he orbited Earth on April 12, 1961.

10. What is the primary scientific purpose of the International Space Station (ISS)?

  1. To mine valuable minerals from nearby asteroids
  2. To serve as an inhabited orbital research laboratory in microgravity conditions
  3. To launch nuclear weapons into distant solar systems
  4. To provide luxury commercial tourism hotels in orbit
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Answer: B

The ISS provides a continuous microgravity environment for scientific experiments in biology, physics, medicine, and astronomy.

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