Distance Measurement in the Solar System

Which of the following is a correct representation of a light year in kilometers?

• 9,460,000,000 km

• 94,600,000,000 km

• 946,000,000,000 km

• 9,460,000,000,000 km

In the context of light years, what does "flat, empty space" refer to?

• A vacuum with no matter

• A space filled with air

• A space filled with water

• A space filled with dust

What happens to the apparent position of a star when observed from two different points?

• It appears to move

• It changes color

• It becomes brighter

• It stays the same

Why is parallax important in astronomy?

• It helps measure distances to stars

• It determines the color of stars

• It calculates the speed of stars

• It identifies the temperature of stars

What is the visual effect when you switch eyes in the parallax example?

• The thumb disappears

• The thumb appears to move

• The thumb changes color

• The thumb stays still

Tags

NGSS.MS-LS1-8

What is the term for the angle used to measure the apparent shift of a star?

• Parallax angle

• Inclination angle

• Rotation angle

• Revolution angle

What is true about parallax angles?

• They are always more than 1 degree

• They are exactly 1 degree

• They are always less than 1 degree

• They are more than 10 degrees

How many arcminutes are in a degree?

• 60

• 30

• 90

• 120

How many degrees are in half a circle?

• 90°

• 180°

• 360°

• 45°

How many arcseconds are in 1 arcminute?

• 30"

• 60"

• 90"

• 120"