Space

Question 1

Order of Planets?

Answer 1

• The Sun
• Mercury
• Venus
• Earth
• Mars
• Jupiter
• Saturn
• Uranus
• Neptune

Question 2

Types of orbital motion?

Answer 2

• Polar Orbit
• Geostationary Orbit

Question 3

What is the stars size determined by?

Answer 3

• The force of gravity pushing inwards and the force due to nuclear fusion pushing outwards

Question 4

Red shift?

Answer 4

• observed when there’s an increase in wavelength causing the visible wavelengths to shift to the ‘red-end’ of the spectrum (the further away the wavelength is to the observer the more red, the closer the wavelength is to the observer, the more blue)
• red shift and blue shift

Question 5

example of a natural satellite?

Answer 5

The Moon

Question 6

Example of artificial satellite?

Answer 6

The International Space Station

Question 7

Geostationary Orbit?

Answer 7

• Gravity causes an object to constantly change direction.
• velocity is constantly changing but the speed remains the same
• Object has to be just the right speed to remain in orbit at a set distance

Question 8

cycle of a star?

Answer 8

• Nebula
• Protostar
• Main sequence star
• Supergiant
• Supernova
• Neutron star
• Black hole
• Planetary Nebula
• White dwarf
• Black dwarf

Question 9

stars same size or smaller than the sun?

Answer 9

Expand to become a red giant and then cool off to become a white dwarf and then after cooling further, a black dwarf

Question 10

stars larger than the sun?

Answer 10

Expand to be a supergiant and explode to be a supernova, leaving a core of a Neutron star (or a black hole if extremely massive)
- Elements heavier than iron are a result of a supernova

Question 11

What is a nebula?

Answer 11

collection of dust and gas

Question 12

what is a protostar?

Answer 12

the dust and gas comes together due to the force of gravity

Question 13

main sequence star?

Answer 13

gravity forces particles together, nuclear fusion takes place and they begin to form heavy elements (up to iron)