Gravity and Orbits Review

Front

What is the time it takes a planet to go around the sun called?

Back

Orbital period.

Front

What is the path a planet follows as it moves around the sun?

Back

Orbit/Revolution.

Front

How does the orbital speed change as you move farther away from the sun?

Back

The orbital speed gets slower.

Front

Who wrote the laws of gravity in the 1600s?

Back

Newton.

Front

What happens to weight when gravity changes?

Back

Weight changes when gravity changes, but mass stays the same.

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object, while weight is the force exerted by gravity on that object.

Front

What is an orbit?

Back

An orbit is the curved path of an object around a star, planet, or moon.

Front

What is gravitational force?

Back

Gravitational force is the attraction between two objects with mass.

Front

What is the relationship between mass and gravitational force?

Back

The greater the mass of an object, the stronger the gravitational force it exerts.

Front

What is the role of gravity in the solar system?

Back

Gravity keeps planets in orbit around the sun and moons in orbit around planets.