Gravity and Orbits Flashcard

Front

What would happen to stars and planets without gravity?

Back

They would move in a straight line.

Front

What does gravity pull everything toward?

Back

The largest mass.

Front

What happens to Earth's revolution time if the mass of the Sun is slightly increased?

Back

It decreases.

Front

True or False: Gravity attracts all objects towards one another.

Back

True.

Front

What happens if the mass of the Sun is increased too much?

Back

The Earth is pulled (crashes) into the Sun.

Front

Define gravity.

Back

Gravity is a force that attracts two bodies toward each other.

Front

What is the effect of gravity on objects in space?

Back

It keeps them in orbit around larger masses.

Front

What is an orbit?

Back

An orbit is the path one object takes around another due to gravity.

Front

How does distance affect gravitational pull?

Back

The farther apart two objects are, the weaker the gravitational pull between them.

Front

What is the relationship between mass and gravity?

Back

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