WorksheetsCEA Single Award Solar System
Total questions: 12
Worksheet time: 25mins
What causes the interstellar clouds to collapse to form proto-stars & stars?
centripetal forces that act over large areas between stars
a contraction & clumping of gas/dust due to gravity
a contraction & clumping of gas/dust due to frictional force
a "trigger" mechanism such as two colliding stars
A star is born when gas and dust from a nebula become so dense and hot that nuclear fusion starts. Which of the following forces is responsible for the formation of a star?
friction
gravitation
electromagnetic energy
magnetism
Which of the following accurately describes the main reaction that generates the Sun's light?
Oxygen reacts with carbon to form carbon dioxide.
Hydrogen nuclei fuse, forming helium and releasing energy.
Light reacts with water to form glucose.
Iron reacts with oxygen to form iron oxide.
In stars, hydrogen nuclei combine with each other to form helium and other heavier elements. What is this process called?
fission
wave motion
convection
fusion
The distance light can travel in one year is ______________
15,000 kilometers
1 light-year
15 Astronomical Units
6,000 miles
What Galaxy is Earth located?
Andromeda
Milky Way
Sagittarius
Snickers
How many main sequence stars is in our solar system?
2
8
1
None
