Astronomy Unit

What are star patterns called?

• galaxies

• shooting stars

• meteorites

• constellations

Answer explanation

Star patterns are called constellations, which are groups of stars that form recognizable shapes or patterns in the sky.

There are ___________ constellations in the zodiac.

What causes the changes in the seasons and the variations in the length of days and nights?

• Distance from the Moon

• Rotation speed of the Earth

• Number of stars in the galaxy

• Tilt of the Earth's axis and its orbit around the Sun

Answer explanation

Tilt of the Earth's axis and its orbit around the Sun

What is the speed of light?

• 186,000 miles per second

• 299,792 miles per second

• 528,000 miles per second

• 100,000 miles per second

Answer explanation

The speed of light is 186,000 miles per second, which is the correct answer choice.

Which waves does the electromagnetic spectrum include?

• Alpha waves, beta waves, theta waves

• Ocean waves, seismic waves, gravitational waves

• Radio waves, microwaves, infrared waves, visible light, ultraviolet light, X-rays, and gamma rays

• Sound waves, heat waves, light waves

Answer explanation

The correct choice includes radio waves, microwaves, infrared waves, visible light, ultraviolet light, X-rays, and gamma rays, which are all part of the electromagnetic spectrum.

The smallest part of a chemical element is a(n) ___________

What is this picture called?

• Periodic Table of Elements

• Table of Atoms

• Periodic Table of Stars

• Table of Planets

What do you call the science of studying space?

• astrology
• astronomy
• physics
• chemistry

What is the term used for the actual amount of light a star shines into space each second?

• luminosity

• intensity

• radiance

• brightness

What is the most common type of star?

• Blue giant
• White dwarf

• Red dwarf

• Yellow dwarf