eggy earth and smelly space Flashcards
(10 cards)
1
Q
The Earth and all objects with mass have a gravitational field. They are only attractive/repulsive.
A
Attractive
2
Q
Earth’s gravitational field is how many N/kg?
A
10 N/kg
3
Q
The sun has gravitational field of 293 N/kg. What is the force that acts on 0.5kg of mass?
A
146.5 N
4
Q
Name the two gas giants.
A
Jupiter and Saturn.
5
Q
Name the two ice giants.
A
Uranus and Neptune.
6
Q
What is the surface temperature of the sun?
A
5500°C
7
Q
How far is Mars from the sun?
A
228,000,000 km
8
Q
Name all of the planets, in order.
A
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune.
9
Q
What is the name of the stable period in a stars life?
A
Main Sequence Star.
10
Q
What happens when a star dies?
A
It either explodes into a supernova, or implodes and turns into a black hole.
