Science Flashcard

Front

What is the duration of the Earth's rotation?

Back

24 hours.

Front

How many significant figures are in the number 40500?

Back

3

Front

What is a key advantage of reflective telescopes over refracting telescopes?

Back

They do not suffer from chromatic aberration.

Front

What does the geocentric model of the universe state?

Back

It includes the Earth as the center of the universe.

Front

What are the constellations that lie on the ecliptic called?

Back

Zodiac.

Front

Define rotation in the context of Earth.

Back

The spinning of the Earth on its axis, taking approximately 24 hours to complete one full turn.

Front

What is chromatic aberration?

Back

A distortion in images caused by the lens focusing different colors at different distances.

Front

Who proposed the heliocentric model of the solar system?

Back

Copernicus.

Front

What is the significance of the ecliptic?

Back

It is the apparent path of the Sun across the sky, which defines the Zodiac constellations.

Front

Explain the difference between a reflective and a refracting telescope.

Back

Reflective telescopes use mirrors to gather light, while refracting telescopes use lenses.