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Jeopardy
Light-Years
Triangulation
parallax
Challenge
Bonus
Q $100
Q $100
Q $100
Q $100
Q $100
Q $200
Q $200
Q $200
Q $200
Q $200
Q $300
Q $300
Q $300
Q $300
Q $300
Q $400
Q $400
Q $400
Q $400
Q $400
Q $500
Q $500
Q $500
Q $500
Q $500
Final Jeopardy
$100 Question from Light-Year
Is light year measuring distance or time?
$100 Answer from Light-Year
distance
$200 Question from Light-Years
What is the speed of light?
$200 Answer from Light-Year
300 000 km/s
$300 Question from Light-Year
When comparing the distance from Earth to
different stars, which unit is the most appropriate?
-Light hour
-Kilometer
-Light-Year
-Astronomical unit
$300 Answer from Light-Year
Light-Year
$400 Question from Light-Year
What is 9.5 trillion kilometers?
$400 Answer from Light-Year
one light year
$500 Question from Light-Year
Let us say a star just exploded into a supernova 9
million km away. How long will it take its
radiation to reach our solar system?
-30 years
-750 hours
-30 seconds
$500 Answer from Light-Year
30 seconds
$100 Question Triangulation?
What is the use of triangulation?
$100 Answer from Triangulation
A technique for determining the distance to
A visible object by creating an imaginary
triangle between the observer and the
object then calculating the distance.
$200 Question from
Triangulation
Which calculations are necessary to perform a
triangulation measurement?
a) a straight baseline length
b) two angle measurements
c)a tan(theta) calculation
d)a scale calculation
$200 Answer from Triangulation
b) two angle measurements
c)a tan(theta) calculation
d)a scale calculation
$300 Question from triangulation
Why do you need to have a
baseline to make a triangulation
measurement?
$300 Answer from Triangulation
Baseline provides a framework for the angles.
The longer baseline would give you a more
accurate angle measurement
$400 Question from
Triangulation
What are the 3 measurements you need for triangulation?
$400 Answer from Triangulation
Two angles and the length of a baseline
$500 Question from
Triangulation
Why is it best to use a long
baseline when determining
distances using triangulation?
$500 Answer from Triangulation
Gives you more accurate angle measurement.
$100 Question from parallax
What is paralax
$100 Answer from Parallax
The apparent shift of an object against
stationary background caused by change
in position of observer.
$200 Question from Parallax
What causes parralax
$200 Answer from Parallax
Parallax is caused by change in
position of the observer
$300 Question from Parallax
Why is parallax not allways accurate
$300 Answer from Parallax
The farther an object is the less
accurate a measurement is because
the change of angles
$400 Question from Parallax
Why is parallax so time
consuming when measuring
distant objects
$400 Answer from Parallax
When measuring things far from earth
to create baseline you must measure
when earth reaches its farthest points
every 6 months
$500 Question from Parallax
How do astronomers get
accurate measurements in
parallax?
$500 Answer from Parallax
They create a larger baseline
which helps with making
accurate measurements in
parallax
$100 Question from Challenge
If a galaxy is 1.5 million
light year away how long
will it take the light to
travel from the galaxy to
Earth.
a)1.5 billion years
b)1.5 thousand years
c) 1.5 million years
$100 Answer from Challenge
c)1.5 million years
$200 Question from Challenge
Why is a scale used in
triangulation?
$200 Answer from Challenge
makes the numbers smaller
and easier to work with.
$300 Question from Challenge
the Oort cloud is about
700,000 times as far from
earth as earth is from the sun .
How far away is the Oort
cloud.
a)700 000AU
b)700AU
c)7AU
$300 Answer from Challenge
A) 70,000AU
$400 Question from Challenge
How does long does it take light to
travel from the sun to Earth
a)1hour
b)7mins
c)8.3mins
$400 Answer from Challenge
c) 8.3mins
$500 Question from Challenge
Explain the difference between
triangulation and Parllax?
$500 Answer from Challenge
Parallax is used for star’s distance
from earth while triangulation is
used for distant object.
$100 Question from Challenge
What is astronomical unit?
$100 Answer from Bonus
Used to measure distances within the solar system
$200 Question from Bonus
How many kilometers does 1AU equal
a)100 00km
b)500km
c)150 million km
$200 Answer from Bonus
d)150 million
$300 Question from Bonus
Why are the distances between bodies in solar
systems not measured in light years?
$300 Answer from Bonus
The distances between bodies in solar systems are
not big enough to be measured in light years
$400 Question from Bonus
Which of the following units is the greatest distance?
a)One light year
b)One parallax
c)One astronomical units
$400 Answer from Bonus
a)One light year
$500 Question from Bonus
When comparing the distance
from Earth to different stars which
unit is most appropriate?
a)Astronmical unit
b)Kilometre
c)Light year
$500 Answer from Bonus
c)Light year
Final Jeopardy
Parallax and triangulation are considered to be indirect
measurement techniques. Why are such techniques used to
measure distances in space?
Final Jeopardy Answer
It’s not possible to physically measure the long distances
between stars . For these reasons, astronomers use a number
of techniques to measure distances indirectly. Two such
techniques have been used for thousands of years to
determine distances on Earth: triangulation and parallax.