Solar System Review #2

What is the force that keeps the planets in orbit around the Sun?

• Electromagnetic force

• Gravitational force

• Nuclear force

• Frictional force

How does Earth's tilt affect the planet?

• It causes day and night.

• It has no effect.

• It affects the seasons.

• It changes Earth's orbit around the Sun.

What would happen if gravity in the solar system suddenly disappeared?

• Planets would move in a straight line out into space.

• Planets would move closer to the Sun.

• The solar system would remain unchanged.

• Planets would stop moving.

Which planet has the strongest gravitational pull in our solar system?

• Earth

• Mars

• Jupiter

• Venus

How does the scale of the solar system affect the time it takes for a planet to orbit the Sun?

• The larger the scale, the faster the orbit.

• The scale has no effect on orbit time.

• The larger the scale, the slower the orbit.

• The smaller the scale, the slower the orbit.

What is the role of gravity in the formation of the solar system?

• It pushed matter away to form planets.

• It had no role in the formation.

• It pulled matter together to form stars and planets.

• It only affected the formation of stars.

What effect does the Sun's gravity have on the motion of the planets?

• It pulls them into a spiral towards the Sun.

• It keeps them orbiting in elliptical paths.

• It pushes them away into outer space.

• It has no effect on their motion.

How does the gravitational force between two objects change if the mass of one object is doubled?

• It remains the same.

• It is halved.

• It is doubled.

• It is quadrupled.

What is the primary reason for the high tides on Earth?

• The Moon's gravitational pull on Earth's water.

• The Sun's gravitational pull on Earth.

• Earth's rotation on its axis.

• The gravitational pull of other planets.

Why does the Sun have the most significant gravitational influence in the solar system?

• It is the largest object in the solar system.

• It is the hottest object in the solar system.

• It rotates the fastest.

• It has the most moons.