WorksheetsAstrophysics 4
Total questions: 21
Worksheet time: 11mins
When mass of a planet increases, gravity _________.
increases
decreases
When size of a planet increases, gravity on the surface ___________.
increases
decreases
What are the two biggest planets?
Jupiter and Saturn
Uranus and Neptune
Which planet is a similar size to Earth?
Venus
Mars
What are the two blue planets?
Jupiter and Saturn
Uranus and Neptune
If Neptune gained more mass, it could have become a ______.
star
black hole
Which planet wins the beauty contest?
Earth
Jupiter
Which planets are the gas giants?
Jupiter and Saturn
Uranus and Neptune
Which planets are the ice giants?
Jupiter and Saturn
Uranus and Neptune
Which are the four terrestrial planets?
Mercury, Venus, Earth, Mars
Mercury, Venus, Pluto, Ceres
Earth, Mars, Pluto, Ceres
Which of the following is the largest?
Star
Planetary system
Galaxy
Comet
What is a comet?
A large rock orbiting the sun.
A small rock orbiting a planet.
A ball of ice and dust orbiting the sun.
A ball of ice and dust orbiting a planet.
An area of such high gravity that nothing can escape.
Supernova
Nuclear explosion
Black hole
Galaxy
Each galaxy contains ...
one planetary system
billions of planetary systems
Our galaxy is a _______ shape.
disk
sphere
Orbits are ______ curved closer to the sun, and ______ curved further from the sun.
more, less
less, more
Comets move ________ when they are close to the sun.
faster
slower
A comet has a ______ tail and a ______ tail.
ice, dust
plasma, dust
What is the value of F for 4D?
1/4
8
16
1/16
What is the value for 1/4D?
4
8
12
16
The sun contains ____ of the solar systems mass.
5%
20%
50%
99%
