Telescopes
Which telescope type uses mirrors?
reflector
How many solstices happen each year?
2
What is the phase of the moon that is completely dark?
New Moon
What is one kilometer equal to in meters?
1,000m
One Earth year is equal to how many light years?
1
How is the image displayed in a refracting telescope?
upside down
When is the spring equinox?
March 20 or 21
What causes the phases of the moon?
Reflection of sunlight which changes based on its position in orbit.
Which one is larger, a millimeter or petameter?
Petameter (1 petameter-1,000,000,000,000,000 vs. 1 millimeter=.001m)
As we look farther out into space, we are also looking farther back in__________.
time
What type of telescope is the Hubble Telescope? what type of light does it detect? (Must answer both for full points, you will only get 150 pts for 1 correct answer)
reflector, mostly visible light (some infrared and UV, too)
What day do we have the most daylight in the northern hemisphere?
June 21 or 22
What term means growing? Shrinking?
waxing-growing, waning-shrinking
How do you write 1,000,000,000,000,000,000 in exponents?
10 to the 18th power
A child is born in the Earth year 2010. You are on an planet that is 28.38 trillion km away from Earth. Looking through a high-powered telescope, you witness the child's 5th birthday party. How old is that child on Earth at the same time you are watching the child's birthday party? FYI-the distance light travels in 1 year is 9.46 trillion km
8 years old
(28.38 trillion km/9.46 trillion km=3 light years. 1 light year=1 earth year. 3+5=8)
What is the other name for an Astronomical telescope?
Keplerian
What is the reason for the seasons?
The tilt of the Earth
What phase shows most of the moon lit up (but not all)?
gibbous
What number does this represent? 1x10^-4
0.0001
Popular astronomer that wrote the "Pale Blue Dot Speech." (for fun question, not on test)
Carl Sagan
What type of eyepiece lens does an astronomical telescope use? (One of the two types we built in class)
Convex
Why is Earth tilted?
A planet Theia collided with Earth about 4.5 billion years ago.
Why do we always see the same side of the moon?
synchronous rotation
What is the largest metric unit?
Yottameter