10 questions · Form 3 Science Bab 10: Space Exploration
Which astronomer proposed the Geocentric Model stating that Earth is fixed at the center of the Universe?
Prefer reading to quizzing? All 10 questions are listed below with the answer and explanation under each one.
1. Which astronomer proposed the Geocentric Model stating that Earth is fixed at the center of the Universe?
Answer: B
Claudius Ptolemy formulated the Geocentric Model where Earth was considered the static center of the Universe.
2. What improvement did Isaac Newton make to optical telescopes?
Answer: A
Newton invented the reflecting telescope using a concave primary mirror, solving the chromatic aberration issue present in lens refractors.
3. How is remote sensing technology applied in disaster management during major flood events?
Answer: B
Remote sensing satellite imagery provides real-time boundary maps of flooded regions to help authorities coordinate rescue operations.
4. What is the primary function of a launch rocket in space missions?
Answer: B
Rockets generate massive thrust by expelling high-velocity exhaust gases to escape Earth's gravity and place spacecraft into orbit.
5. Which technology allows scientists to collect physical and environmental data about Earth's surface from satellite sensors orbiting at a distance?
Answer: B
Remote sensing uses satellite-borne optical, radar, or infrared sensors to observe Earth's surface features from space.
6. What is the primary advantage of placing space telescopes like the Hubble and James Webb in orbit outside Earth's atmosphere?
Answer: B
Atmospheric gases, water vapor, and light pollution distort astronomical signals; placing telescopes in space provides pristine image clarity.
7. Which historical space mission successfully landed the first humans on the Moon in July 1969?
Answer: B
NASA's Apollo 11 mission landed Neil Armstrong and Buzz Aldrin on the lunar surface on July 20, 1969.
8. Which of the following is an application of remote sensing in AGRICULTURE?
Answer: B
Multispectral sensors on satellites measure light reflection from vegetation to assess chlorophyll concentration and crop health.
9. How did Johannes Kepler modify Nicolaus Copernicus's Heliocentric Model?
Answer: B
Kepler refined the heliocentric model by discovering that planetary orbits around the Sun are elliptical, not perfect circles.
10. Why are spacecraft heat shields crucial during atmospheric re-entry upon returning to Earth?
Answer: B
Hurtling into Earth's atmosphere at high speeds creates tremendous atmospheric friction and air compression, generating temperatures exceeding 1,500°C.