Astronomy A Unit 1 Assessment

Front

What is at the middle of a Heliocentric system?

Back

The Sun is at the center of a Heliocentric system, where planets orbit around it.

Front

What type of telescope uses lenses to gather and focus light?

Back

A Refractor telescope uses lenses to gather and focus light.

Front

What is at the middle of a Geocentric system?

Back

The Earth is at the center of a Geocentric system, where all celestial bodies are thought to orbit around it.

Front

What do we perceive various wavelengths within the visible light spectrum as?

Back

We perceive various wavelengths within the visible light spectrum as color.

Front

What is the purpose of a spectroscope in astronomy?

Back

A spectroscope is used by astronomers to analyze the light from stars and other celestial objects to infer their composition and properties.

Front

What is the main difference between a Heliocentric and a Geocentric model?

Back

In a Heliocentric model, the Sun is at the center, while in a Geocentric model, the Earth is at the center.

Front

What is the visible light spectrum?

Back

The visible light spectrum is the portion of the electromagnetic spectrum that is visible to the human eye, ranging from red to violet.

Front

What is the significance of the color of stars?

Back

The color of stars indicates their temperature; hotter stars appear blue, while cooler stars appear red.

Front

What is an optical telescope?

Back

An optical telescope is a device that gathers and focuses light to observe distant objects, typically using lenses or mirrors.

Front

What is the role of gravity in the Heliocentric model?

Back

In the Heliocentric model, gravity is the force that keeps the planets in orbit around the Sun.