Space Measurements

What is a light year?

• The distance light travels in one year
• a measurement of time
• a way to measure how bright a year is
• Average distance from to the Sun

What is the apparent change in the position of an object due to a change in the location of the observer?

• light year
• astronomical unit
• parallax
• parsec

What is the term that describes the average distance from Earth to the Sun?

• light year
• astronomical unit
• parallax
• parsec

What is a light year?

• The distance light travels in a year.
• A number of light bulbs we change in a year
• The speed at which light travels
• The brightness of the Sun at night time.

How long does it take for the Sun's light wave to hit the Earth?

• 8.5 Days
• 8.5 Minutes
• 8.5 Months
• 8.5 Years

Tags

NGSS.MS-ESS1-1

What is the speed of light?

• 300,000 km per second
• 300, 000 km per hour
• 300, 000 meter per second
• 300, 000 meters per hour

Proxima Centauri is the closest star to Earth after the Sun and is located 4.3 light years away from Earth. How long does it take light from Proxima Centauri to reach Earth?

• 1 year
• 4.3 years
• 43 years
• 10 trillion years

Astronomers measure the distances to nearby stars by how background stars appear to move back & forth as the Earth orbits the Sun. This type of measurement is called ______

• red shift
• polaris
• blue shift
• parallax

An arcsecond of parallax is know as a ________ and is equal to __________.

• parsec, 3.26 light years
• parsec, 3.26 astronomical units
• parsec, 100 light years
• light year, 3.26 astronomical units

Describe how the distances between the orbits of the inner planets compare to the distances between the orbits of the outer planets.

• The distances between orbits of the outer planets are much smaller.
• The distances between orbits of the outer planets are much larger.
• The distances between orbits of the inner planets are much larger.
• There is no difference between the distances of the orbits of the inner planets and the outer planets.