Ch 3 True/False

Aristotle proposed that all planets revolve around the Sun.

during retrograde motion, planets actually stop and move backward in space.

the heliocentric model of the solar system holds that the Sun is at the center and everything else moves around it.

Copernicus's theories did not gain widespread scientific acceptance during his lifetime.

Kepler's laws hold only for the six planets known in his time.

you throuw a baseball to someone, before the ball is caught, it is temporarily in orbit around Earth's center.

the total mass of all the planets is much less than the mass of the Sun.

the solar system is of largely uniform composition.