The Universe

What is the largest thing to exist?

• Big Bang

• Universe

• Galaxy

• Globular clusters

What are the smallests things to exist? Choose 2.

• Galaxies

• Asteroids

• Stars

• Moons

Which galaxy are we in?

What was the very first telescope type?

• X-ray

• Optical

• Radio

• Infrared

Low frequency waves haves have long wavelengths.

• True

• False

Short wavelengths mean low energy.

• True

• False

Humans can see x-rays with our own eyes.

• True

• False

Which of the following radiations have the smallest energy?

• Gamma rays

• x-rays

• microwaves

• radio waves

Which of the following radiations have the highest energy?

• Microwaves

• Infrared light

• Gamma rays

• Ultraviolet rays

Redshifting helps us measure how the universe is expanding.

• True

• False