Gravity and Inertia

Front

What is gravity?

Back

Gravity is a force that attracts two bodies towards each other, depending on their masses and the distance between them.

Front

What is inertia?

Back

Inertia is the tendency of an object to remain at rest or in uniform motion unless acted upon by an external force.

Front

How does mass affect gravitational attraction?

Back

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

Front

How does distance affect gravitational attraction?

Back

The greater the distance between two objects, the weaker the gravitational attraction between them.

Front

What keeps planets in orbit around the Sun?

Back

The gravitational pull of the Sun keeps planets in orbit.

Front

Why does the Moon orbit Earth instead of the Sun?

Back

The Moon orbits Earth because it is closer to Earth than to the Sun, resulting in a stronger gravitational pull from Earth.

Front

What is the relationship between gravity and distance?

Back

Gravity decreases as the distance between two objects increases.

Front

What is the role of inertia in space?

Back

Inertia allows objects in space to continue moving in a straight line unless acted upon by another force.

Front

What is the effect of the Sun's gravity on Neptune compared to Earth?

Back

The Sun has less gravitational pull on Neptune because it is farther away than it is on Earth.

Front

What happens to an object in motion if no forces act on it?

Back

An object in motion will continue to move in a straight line at a constant speed.