Planetary Motion

Front

What does Kepler’s 1st Law of Motion state?

Back

Planets revolve around the sun in elliptical orbits.

Front

What is gravity?

Back

a force between any two objects that pulls them together

Front

What shape did the early astronomers think the planets’ paths looked like?

Back

circular

Front

What is true about the distance between a planet and the sun and the planet’s revolution around the Sun? Options: The closer the planet is to the sun, the slower it orbits. The farther the planet is to the sun, the faster it orbits. The farther the planet is to the sun, the brighter the sun is. The closer the planet is to the sun, the faster it orbits.

Back

The closer the planet is to the sun, the faster it orbits.

Front

List the order of the planets, starting from the sun.

Back

Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune

Front

Is the Sun a star?

Back

yes

Front

What does matter do to space?

Back

bend it

Front

Which planet takes longer to revolve around the Sun, Earth or Mars? Why?

Back

Mars, it's farther from the Sun

Front

How does the mass of an object effect the gravitational attraction of an object?

Back

The greater the mass of the object the greater the gravitational force.