Gravity and Orbits

Front

What are astronomical units used for?

Back

Distances within a solar system.

Front

What is the relationship between a planet's distance from the sun and its orbital speed?

Back

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

Front

Does an object's mass change?

Back

No, an object's mass never changes.

Front

What is the definition of mass?

Back

The amount of matter in an object.

Front

What does a planet with a large orbit have in terms of its year?

Back

A long year.

Front

What is the force that attracts two bodies towards each other?

Back

Gravity.

Front

How does gravity affect the motion of planets?

Back

Gravity keeps planets in orbit around the sun.

Front

What is the relationship between mass and gravitational force?

Back

The greater the mass of an object, the stronger its gravitational pull.

Front

What is the term for the path an object takes as it revolves around another object in space?

Back

Orbit.

Front

What is the effect of distance on gravitational force?

Back

The greater the distance between two objects, the weaker the gravitational force.