9.1 Review- Movement in Space

Front

What did Galileo discover that supported Copernicus's theory about the solar system?

Back

Galileo discovered moons orbiting Jupiter, showing that not all things travel around Earth. He also observed that Venus goes through phases, suggesting it orbits the sun.

Front

What is the shape of each planet's orbit around the sun?

Back

The shape of each planet's orbit around the sun is an ellipse.

Front

What model of the solar system places Earth at the center?

Back

The model of the solar system that places Earth at the center is called the Geocentric model.

Front

Who was the ancient Greek scientist that first developed a heliocentric model?

Back

The ancient Greek scientist who first developed a heliocentric model was Aristarchus.

Front

Which statement is most accurate about the movement of Earth and the Sun?

Back

The Earth rotates and revolves around the Sun.

Front

What is the term for the path that planets take around the sun?

Back

The term for the path that planets take around the sun is called an orbit.

Front

What is the difference between rotation and revolution?

Back

Rotation is the spinning of a planet on its axis, while revolution is the movement of a planet around the sun.

Front

What is the term for the force that keeps planets in orbit around the sun?

Back

The force that keeps planets in orbit around the sun is called gravity.

Front

What is the heliocentric model?

Back

The heliocentric model is a model of the solar system that places the sun at the center, with planets orbiting around it.

Front

What did Kepler discover about planetary motion?

Back

Kepler discovered that planets move in elliptical orbits around the sun.