Year 10 Semester 2 Review - Part 1 Formative

Astronomical Unit is defined as the distance between the

• Sun and the Earth

• Sun and the Moon

• Earth and the Moon

• Earth and Jupiter

What is a light year?

• The distance light travels in one year
• a measurement of time
• a way to measure how bright a year is
• Average distance from to the Sun

Which of the following numbers is 1000 written in scientific notation?

• 1 x1.0 ^7
• 1.00x10^1

• 1.0 x 10^3
• 10.00 x 10^5

1 x 10 ^-3 written in standard notation

• 1000

• 0.001

• 0.0001

• 1

Mercury is 65 million km away from the sun. How far is this in AU? Distance between the Sun and the Earth is 151 million km

• 4.3 AU

• 0.43 AU

• 43 AU

• 0.043AU

How many seconds would it take for light to travel from the Sun to Mercury. Distance from the Sun to Mercury is 65 million km.

• 18s

• 3s

• 1.8s

• 180.5s

A Negatively Charged subatomic particle that orbits around an atom.

• Electron 
• Neutron 
• Proton
• Atomic Nuclei, (Nucleus)

A subatomic particle that has no charge.

• Electron 
• Neutron 
• Proton
• Atomic Nuclei, (Nucleus)

A process in stars where two Hydrogen atoms combine to form Helium and release energy.

• Nebula 
• Nuclear Fusion 
• Supernova 
• Gravity 

All low/medium mass stars will eventually 

• explode into a supernova
• become a black hole
• change into a white dwarf 
• become a neutron star