JeopardyLight-Years

Triangulation parallax Challenge Bonus

Q $100

Q $200

Q $300

Q $400

Q $500

Q $100 Q $100Q $100 Q $100

Q $200 Q $200 Q $200 Q $200

Q $300 Q $300 Q $300 Q $300

Q $400 Q $400 Q $400 Q $400

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 toA 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 lengthb) two angle measurementsc)a tan(theta) calculationd)a scale calculation

$200 Answer from Triangulation

b) two angle measurementsc)a tan(theta) calculationd)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 ParallaxWhen 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 ParallaxThey 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 yearsb)1.5 thousand yearsc) 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)700AUc)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)1hourb)7minsc)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 equala)100 00km b)500kmc)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 yearb)One parallaxc)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 unitb)Kilometrec)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.