SP7 Astronomy

Question 1

Describe the different bodies that make up the Solar System.

Answer 1

Planets, Dwarf planets, moons, artificial satellites, asteroids, comets

Question 2

Recall the names and order of the planets in the Solar System.

Answer 2

Closest to the sun to furthest away:
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune

Question 3

Describe how ideas about the structure of the
Solar System have changed over time.

Answer 3

• Geocentric model=sun, moon, planets and stars all orbit the earth
• Heliocentric=planets orbited the sun in a perfect circle
• Modern= orbit in an elliptical shape

Question 4

Describe how methods of observing the
Universe have changed over time.

Answer 4

Today we can use photography and telescopes to detect radiation emitted from objects. We can also use space probes.