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 (a)   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) (a)  

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