7.9ABC Lesson Review

Front

What is gravitational attraction?

Back

Gravitational attraction is the force that pulls two objects toward each other, depending on their masses and the distance between them.

Front

What factors affect the strength of gravitational force?

Back

The strength of gravitational force is affected by the masses of the objects and the distance between them. Greater mass and closer distance result in a stronger gravitational force.

Front

What are gas giants?

Back

Gas giants are large planets that are primarily composed of gases, such as hydrogen and helium, and have thick atmospheres. Examples include Jupiter and Saturn.

Front

How do gas giants compare to terrestrial planets in terms of orbiting the sun?

Back

Gas giants take longer to orbit the sun than terrestrial planets due to their greater distance from the sun.

Front

What is a comet?

Back

A comet is a small celestial body made of ice, dust, and gases that orbits the sun, often forming a tail when close to the sun.

Front

Where are most comets found?

Back

Most comets are found in the Kuiper Belt, a region of the solar system beyond the orbit of Neptune.

Front

What are asteroids?

Back

Asteroids are rocky metallic objects that orbit the sun but are too small to be considered planets.

Front

What is the difference between asteroids and comets?

Back

Asteroids are made mostly of rock and metal, while comets are made of ice, dust, and gases.

Front

What keeps the moon in orbit around the Earth?

Back

The moon remains in orbit around the Earth due to the force of Earth's gravity.

Front

What is the role of Earth's rotation in the Earth-moon system?

Back

Earth's rotation does not keep the moon in orbit; it is the gravitational pull of Earth that does.