WorksheetsChap. 24 Astronomy
Total questions: 15
Worksheet time: 8mins
Comets fly across the sky like meteors do
True
False
Comets are named after the people who discovered them
True
False
How many times will the average person see a bright comet in their lifetime?
1-2
3-4
5-6
7-8
Who was Comet Halley named after?
Lee Halley
Edmund Halley
Rick Halley
Dan Halley
What was the last bright comet?
Comet McNaught
Comet Ikeya
Comet Peltier
Comet Cunningham
When do bright comets make an appearance?
Once a year
Once a month
Once a century
Once a decade
A comet's gas tail is produced by ionized gas carried away from the nucleus by the solar wind
True
False
The nucleus of a comet is tough and rigid
True
False
Comet nuclei is more dense than ice
True
False
Comet nuclei contain volatile compounds such as:
Carbon dioxide
Methane
Ammonia
All of the above
How long are long period comets' ellipticals?
100 years
500 years
200 years
1,000 years
Faint comets are discovered everyday
True
False
How many well studied comets are there?
1,000,000
1,000
600
300
How many well studied comets have orbits with periods less than 200 years?
100
50
200
350
A comet can survive for a long time in an orbit that brings it into the inner solar system
True
False
