Chapter 10 Development in Astronomy Flashcards
Who are the 3 people who contributed in the development of the solar system model?
Ptolemy. Copernicus and Kepler
What is the first known solar system model?
Geocentric Model
What is the current solar system model used today? and who invented it
Heliocentric model, Kepler
Identify the geocentric model
Earth is stationary and all the objects such as the sun and other planets revolve around it in circular orbits
Identify the heliocentric model
The sun as the center of the Solar system and the earth rotates on its own axis and revolves around the sun in a circular orbit
What modifications were made in the modified Heliocentric Model
Modified it with the sun at one common focal point on the elliptical orbits of the planets according to KEPLERS LAW
Order of planets from the sun
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune
What are some applications of technology in space exploration
Space Telescopes, Rockets, Satellite, Space Probes and Remote sensing
What if the function of an Astronomical Sextant
Measure the altitude of stars
What is the mode widely used astronomical instrument
Galileo’s Telescope
What is the function of the Hubble Space Telescope
Observe and gather information on galaxies
What is the function of the Spitzer Space Telescope
Detects very distant activities in space such as the formation of stars
What is the function of a radio telescope
Detect radio waves from space
What is the function of a rocket
Used widely in space exploration
Explain how does a rocket work
When the fuel in a rocket burns, hot gases releases at high speeds through the bottom of the rocket, producing a force which pushes the rocket upwards
What was the first ever satellite sent to outer space? and when was it
Sputnik I in 1957
How many satellites does malaysia have?
7 including MEASAT-1, 2, 3 and 3a
What is a space probe?
A spacecraft that gathers information and sends it back to Earth
What do space probes carry?
Cameras and remote sensing instruments as well as radio transmitters and receivers for the purpose of communicating with scientists on Earth
What is the name of the national space agency in Malaysia and when it was built
Agensi Angkasa Negara 2002
When was the construction of the International Space Station completed
2011
What is remote sesing
Method of gathering and recording information from a distance
In which satellite does Malaysia use for remote sensing?
TiungSAT-1
What are the uses of the remote sensing instruments in a satellite?
to receive or detect visible, ultraviolet and infrared lights produced by objects on the surface or below the surface of the Earth
In what fields are remote sensing technology used in?
Agriculture
Geology
Disaster Management
Defence
What benefits are brought in the field of agriculture with the use of remote sensing in satellites?
Detect suitable regions for agricultural development
What benefits are brought in the field of geology with the use of remote sensing in satellites?
Detect locations such as mineral sources, mass depletion and land depletion
What contributions are brought to disaster management with the use of remote sensing in satellites?
Identify pollution and forest fires
What contributions are brought in the field of defence with the use of remote sensing in satellites
Detect intrusions of enemy ships, aricraft and vehicles
