Orbital Motion Review

Front

Which planet in our solar system will have the fastest orbital speed? Options: Venus, Earth, Saturn, Mercury

Back

Mercury

Front

The tendency of a moving object to continue moving in a straight line or a stationary object to remain in place is called:

Back

Inertia

Front

As mass increases, gravity ________________.

Back

Increases

Front

As distance decreases, gravity ___________________.

Back

Increases

Front

What are the factors which combine to keep celestial bodies in orbit? Options: Air Resistance and Gravity, Gravity and Inertia, Inertia and orbital speed, Orbital speed and gravity

Back

Gravity and Inertia

Front

What did Kepler discover about planets and their orbital speed? Options: Planets closest to the Sun will orbit with the fastest orbital speed. , Planets with the greatest mass will orbit the Sun with the fastest orbital speed., Planets furthest from the Sun will orbit with the fastest orbital speed., Planets with the least mass will orbit the Sun with the fastest orbital speed.

Back

Planets closest to the Sun will orbit with the fastest orbital speed.

Front

According to Kepler’s discoveries, planets orbit around the Sun:

Back

in an ellipse.

Front

What does heliocentric mean?

Back

Sun centered

Front

Who improved the telescope so that he could study the moons of Jupiter?

Back

Galileo

Front

Copernicus' important contribution to astronomy was: proving planets move around the Sun in elliptical orbits, the theory of gravity, proposing a simpler model for the motions of planets in the solar system, discovering the Sun was not at the center of the Milky Way

Back

proposing a simpler model for the motions of planets in the solar system