Birth of Modern Astronomy

Front

What was the main reason Galileo faced criticism for his observations?

Back

His findings went against the strict church teachings.

Front

What does Newton's law of gravity explain about planets?

Back

Why planets are in stable orbits around the Sun.

Front

True or False: Kepler's second law states that a planet will sweep out equal areas in equal intervals of time.

Back

True

Front

True or False: Kepler's second law also states that a planet will speed up or slow down in its orbit.

Back

True

Front

What model of the Universe did Galileo's discoveries support?

Back

The Copernican model of the Universe.

Front

What is the geocentric model?

Back

The geocentric model is the astronomical theory that places Earth at the center of the Universe.

Front

Who proposed the heliocentric model of the Universe?

Back

Nicolaus Copernicus.

Front

What are Kepler's three laws of planetary motion?

Back

1. Planets move in elliptical orbits with the Sun at one focus. 2. A line segment joining a planet and the Sun sweeps out equal areas during equal intervals of time. 3. The square of the orbital period of a planet is proportional to the cube of the semi-major axis of its orbit.

Front

What did Galileo use to make his astronomical observations?

Back

A telescope.

Front

What is the significance of the telescope in astronomy?

Back

It allowed astronomers to observe celestial bodies in greater detail, leading to significant discoveries.