Space

What makes up the electromagnetic spectrum?

• all colors of visible light
• all colors of invisible light
• all wavelengths of electromagnetic radiation
• microwaves, gamma rays and X rays

What is an advantage of a reflecting telescope?

• gathers more light
• can focus images perfectly
• can detect distant objects
• can use a small lense

Which of the following indicates the universe is expanding?

• observations of redshift
• discovery of other planets
• magnetic particles
• growing celestial sphere

How could Hubble tell the universe was expanding?

• galaxies were moving away from each other
• galaxies were moving towards each other
• galaxies were getting bigger
• the number of galaxies was increasing

What is the imaginary sphere, created by scientists, that surrounds the Earth?

• a zenith
• an ecliptic
• an astrolabae
• a celestial sphere

What does a telescope collect from space and focus for closer observation?

• wavelengths
• lenses
• magnetic particles
• electromagnetic radiation

Which of the following telescopes is the largest?

• an X-ray telescope
• reflecting telescope
• refracting telescope
• Very Large Array

How does the Earth's atmosphere affect starlight?

• causes it to change colors
• causes it to shimmer and blur
• stretches it
• blocks it

Where do scientists place telescopes to avoid interference with Earth's atmosphere?

• near cities
• near oceans
• in deserts
• in space

What is an imaginary point directly above an observer's head?

• altitude
• right ascension
• zenith
• celestial sphere