
Stellar Parallax and Distance Measurement

Interactive Video
•
Physics
•
9th - 12th Grade
•
Hard

Patricia Brown
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the parallax effect demonstrated with the thumb exercise?
The background moves instead of the thumb.
The thumb does not move at all.
The thumb appears to move less when it is closer to the face.
The thumb appears to move more when it is closer to the face.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does stellar parallax help in measuring the distance to stars?
By calculating the brightness of stars.
By measuring the apparent movement of stars against distant backgrounds.
By counting the number of stars in a constellation.
By observing the color change of stars.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the total angular distance in the context of stellar parallax?
The angle of sight in July only.
The angle of sight in January only.
The difference between the angles of sight in January and July.
The sum of the angles of sight in January and July.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the parallax angle used for in calculations?
To find the exact distance to a star from the Sun.
To calculate the speed of a star.
To determine the color of a star.
To measure the brightness of a star.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is an arc second?
A unit of time.
A unit of distance.
A unit of angle measurement, smaller than a degree.
A unit of mass.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How is a parsec defined in terms of parallax?
The distance at which a star has a parallax angle of one degree.
The distance at which a star has a parallax angle of one radian.
The distance at which a star has a parallax angle of one arc second.
The distance at which a star has a parallax angle of one arc minute.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the maximum distance that can be measured using the parallax method?
10,000 light-years
1,000 light-years
500 light-years
652 light-years
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